2013 GRAND-AM Rulebook

GRAND AMERICAN ROAD RACING ASSOCIATION, LLC
ONE DAYTONA BOULEVARD, DAYTONA BEACH, FL 32114
(386)-310-6500, GRAND-AM.COM
ROGER BAILEY
Chief Appellate Officer
ED BENNETT
President & Chief Executive Officer
KOURTNEY BIGELOW
Legal Counsel
RICHARD BUCK
Managing Director, Competition
MARK RAFFAUF
Managing Director, Racing Operations
GABRIEL CADRINGHER
Managing Director, Technical Regulations and Development
HERB BRANHAM
Managing Director, Communications
PAUL WALTER
Race Director
MARY SUAREZ
Director of Member Services
DAVID PETTIT
Director of Partnership Marketing
STEVE HARRISON
Director of Business Development
GARY CUMMINGS
GRAND-AM Rolex Sports Car Series Manager
JEFF SMALLWOOD
GRAND-AM Continental Tire Sports Car Challenge Series
Manager
MIKE KRAEMER
Competition Senior Project Manager
ROB ELSON
Technical Manager
TOM SEABOLT
Race Operations Manager
DON ABBOTT
Chief Scorer
Copyright by Grand American Road Racing Association, LLC. All rights reserved.
Reproduction or redistribution in and form without permission are strictly prohibited.

GRAND-AM
FOREWORD
These are exciting times in sports car racing.
Back in September, the landmark merger of GRAND-AM Road
Racing and the American Le Mans Series was announced at
Daytona International Speedway. Both series will combine their
banners in 2014 when we operate as a unified series, a move that
has attracted the attention of the international motorsports community.
With the unification as a backdrop, we are embarking on another
competitive season. We look forward to competing at Circuit of The
Americas, Kansas Speedway and Road Atlanta for the first time in
addition to returning to many of America’s finest venues.
The GRAND-AM Rulebook contains the rules and procedures
governing GRAND-AM’s Rolex Sports Car Series and Continental
Tire Sports Car Challenge. Revisions include the new Rolex Series
GX class. We urge you to carefully study the new Rulebook, in order
to familiarize yourself with these revisions as well as the rules which
have not changed.
GRAND-AM will continue to strive for a balanced playing field, with
a full starting field of various car makes and models in each race
that are as equally matched as possible. To maintain proper
balance, it may be necessary to make occasional rule changes
and/or modifications to ensure the proper balance in the competition
arena.
We all at GRAND-AM wish all of you a successful and rewarding
year of racing.
GRAND-AM Road Racing continues to strive to make sports car
road racing highly competitive, affordable and entertaining for
racing fans and competitors. One of the tools that we use for this
purpose is the GRAND-AM Rulebook, which contains the rules and
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procedures governing all GRAND-AM sanctioned on-track activities.
In 2013, the GRAND-AM Rulebook has been revised in several
respects. We urge you to carefully study the new Rulebook in order
to familiarize yourself with these revisions, as well as the rules that
have not changed. If you have any questions or need rules clarifications,
please contact a Senior GRAND-AM Official.
In keeping with GRAND-AM’s commitment to maintain proper
balance in the competition arena, it may be necessary for GRAND-
AM to make rule changes and/or rule modifications from
time-to-time. Such changes are designed to enhance close competition.
GRAND-AM’s goal of a full starting field of various car makes
and models in each race that are as equally matched as possible is
in the overall best interest of the sport. That is what GRAND-AM has
strived for in the past and will continue to strive for in the future.
We all at GRAND-AM wish all of you a successful and rewarding
year of racing.
Ed Bennett
President & CEO

TABLE OF CONTENTS
Page
SPORTING REGULATIONS
SECTION 1 – GENERAL RULES PROCEDURE
1-1 Applicability ......................................................................2
1-2 Amendments.....................................................................2
1-3 Definitions and Terms .......................................................2
1-4 Interpreting and Applying the Regulations .......................5
1-5 Interpretation and Application ..........................................5
1-6 Principle Rule....................................................................6
1-7 Submission to the Regulations.........................................6
SECTION 2 – MEMBERSHIP
2-1 Authority ...........................................................................6
2-2 Reservation of Rights .......................................................7
2-3 Membership Requirement ................................................7
2-4 Application Procedure ......................................................7
2-5 Eligibility Requirements ....................................................8
2-6 Credentials........................................................................9
2-7 Member Status .................................................................9
2-8 Member Conduct............................................................11
2-9 Entrant Obligations .........................................................12
2-10 Substance Abuse Policy.................................................13
SECTION 3 – ADMINISTRATION OF EVENTS
3-1 Event ..............................................................................15
3-2 Safety..............................................................................16
3.3 Testing Policy..................................................................18
3-3 Event Entry .....................................................................19
3-4 GRAND-AM Officials ......................................................20
3-5 Identification Markings ...................................................21
SECTION 4 – FLAGS AND COMMUNICATION
4-1 On-Track Communication...............................................22
4-2 Black ...............................................................................22
4-3 Black with Orange Disc ..................................................22
4-4 Black & White Checkered...............................................22
4-5 Blue or Blue with Orange Diagonal ................................22
4-6 Green ..............................................................................23
4-7 Red .................................................................................23
4-8 Yellow..............................................................................23
4-9 Yellow with Red Stripes..................................................23
4-10 White...............................................................................23
SECTION 5 – PADDOCK, PITS & ROAD
5-1 Paddock..........................................................................23
5-2 Pit Lane...........................................................................24
SECTION 6 – CONDUCT OF EVENTS
6-1 Technical Inspection .......................................................28
6-2 Qualifying ........................................................................30
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6-3 Fan Walk .........................................................................32
6-4 Pre-Race.........................................................................33
6-5 Race Start and Restart Procedures................................33
6-6 Race Interruption (Red Flag)...........................................34
6-7 Mandatory Pit Stops.......................................................35
6-8 Drive Time Restrictions...................................................35
6-9 Race Completion ............................................................35
6-10 On-Tracks Rules .............................................................35
6-11 Safety Car.......................................................................36
6-12 Standard Full Course Yellow ..........................................36
6-13 Pass-Around and Pit Stops............................................36
6-14 Wave-By and End of Operation......................................38
6-15 Restart ............................................................................39
6-16 Short Full Course Yellow ................................................39
6.17 Pass-Around and Pit Stops............................................39
6-18 Wave-By and End of Operation......................................40
6.19 Extended Full Course Yellow..........................................40
6.20 Wave-By and End of Operation......................................41
6.21 Competition Penalties ....................................................41
SECTION 7 – REQUIRED EQUIPMENT
7-1 Fueling Rig......................................................................42
7-2 Driver ID Transmitters .....................................................44
7-3 Safety Light System .......................................................44
SECTION 8 – DISCIPLINARY ACTION
8-1 Penalty ............................................................................44
8-2 General Administration ...................................................45
8-3 Timing and Scoring Results ...........................................45
8-4 Protest ............................................................................46
8-5 Appeal.............................................................................47
8-6 Appeal to the Chief Appellate Officer.............................48
SECTION 9 – PRIZES, POINT FUNDS AND AWARDS
9-1 Sole Authority .................................................................50
9-2 Event Prizes ....................................................................50
9-3 Point Funds.....................................................................50
9-4 Championship.................................................................50
9-5 GRAND-AM Driver Championships................................51
9-6 Measurement ..................................................................52
9-7 Ties .................................................................................52
9-8 GRAND-AM Manufacturer Championships....................52
9-9 GRAND-AM Team Championships ................................53
GENERAL AUTOMOBILE REGULATIONS
SECTION 1 – INTRODUCTION
1-1 Eligibility .........................................................................57
1-2 Measurements ............................................................... 57
1-3 Equivalence Formula ..................................................... 57
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SECTION 2 - BODYWORK REGULATIONS
2-1 Bodywork .......................................................................58
2-2 Rear Wing ...................................................................... 59
2-3 Bodywork Pins............................................................... 59
2-4 Windshield Wiper........................................................... 59
2-5 Lights ............................................................................. 59
2-6 Windshield/Rear Glass ...................................................59
SECTION 3 - ENGINE REGULATIONS
3-1 General Engine Eligibility ............................................... 60
3-2 Pistons/Rods ................................................................. 61
3-3 Cylinder Heads .............................................................. 61
3-4 Crankshaft .................................................................... 61
3-5 Camshaft, Valve Lifter and Rocker Arms ...................... 61
3-6 Engine Air Restrictors .....................................................61
SECTION 4 - ELECTRICAL
4-1 Ignition System ..............................................................61
4-2 Electrical System ........................................................... 62
4-3 Traction Control ..............................................................62
4-4 Traction Control ECU Control.........................................63
SECTION 5 - COOLING
5-1 Cooling System ..............................................................63
SECTION 6 - ENGINE LUBRICATION/DRY SUMP
6-1 Oil Reservoir Tank ..........................................................63
SECTION 7 - EXHAUST
7-1 Exhaust System..............................................................63
SECTION 8 - DRIVE TRAIN
8-1 Drive Train.......................................................................64
8-2 AGS (Paddleshift) Systems.............................................64
8-2 Artificial Heating..............................................................64
SECTION 9 - WHEELS AND TIRES
9-1 Official Tire - Rolex Series ..............................................64
9-2 Official Tire – Continental Tire Sports Car Challenge.....64
9-3 Control ............................................................................65
9-4 Responsibility .................................................................65
9-5 Artificial Heating..............................................................65
9-6 Tire Air Pressure ............................................................65
9-7 Carbon fiber wheels........................................................63
9-8 Wheel Attachment ..........................................................63
9-9 Wheel Diameter ............................................................. 63
SECTION 10 - CHASSIS
10-1 Suspension ....................................................................63
10-2 Steering ......................................................................... 67
10-3 Frame & Roll Cage ........................................................ 67
10-4 Air Jacks ........................................................................ 68
10-5 Car Weight/Ballast......................................................... 68
SECTION 11 - BRAKES
11-1 Brakes.............................................................................68
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11-2 Brake Cooling System................................................... 69
SECTION 12 - FUEL/FUEL CELLS
12-1 Official Fuel .....................................................................69
12-2 Sampling....................................................................... 69
12-3 Fuel Handling................................................................. 69
12-4 Fuel Cell/Fillers/Vents .................................................... 69
12-5 Fuel Lines ...................................................................... 71
12-6 Fuel Pumps.................................................................... 71
12-7 Fuel Capacity................................................................. 71
SECTION 13 - DATA ACQUISITION/RECORDING
13-1 Telemetry .......................................................................71
13-2 Data Acquisition ............................................................ 71
13-3 Radios............................................................................ 72
13-4 Transmitter..................................................................... 72
13-5 Data Recording.............................................................. 72
13-6 Accident Data Recorders ...............................................73
SECTION 14 - IDENTIFICATION AND MARKINGS
14-1 Competition Numbers ....................................................73
14-2 Logos and Brand marks................................................ 74
14-3 Rig Identification............................................................ 75
SECTION 15 - SAFETY EQUIPMENT
15-1 Driver Equipment ............................................................75
15-2 Fire Extinguishers .......................................................... 77
15-3 Towing Eyes....................................................................78
15-4 Delphi Safety Light System ............................................78
15-5 In-Car T.V. Camera..........................................................78
SECTION 16 - FINAL TEXT
16-1 Final Text.........................................................................79
SECTION 17 - ROLL CAGE DIAGRAM
SECTION 18 - WINDSHIELD BRACE DIAGRAM
DAYTONA PROTOTYPE REGULATIONS
SECTION 1 - INTRODUCTION
1-1 Classifications ................................................................82
1-2 Competition ....................................................................82
1-3 Eligibility..........................................................................82
1-4 Daytona Prototype Gen1, Gen2, and Gen3 ...................83
1-5 Additional Specifications ................................................83
SECTION 2 - BODYWORK
2-1 Bodywork........................................................................83
2-2 Headlights...................................................................... 85
2-3 Aerodynamic Devices – Ducts – Vents - Louvers ........ 86
SECTION 3 – WEIGHT
3-1 Minimum Weight.............................................................88
SECTION 4 – ENGINE ELIGIBILITY AND MODIFICATIONS
4-1 Eligibility........................................................................ 89
4-2 General Engine Requirements...................................... 89
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4-3 Detailed Engine Requirements ..................................... 90
SECTION 5 –DRIVETRAIN
5-1 Approved Models ...........................................................91
5-2 Clutch/Flywheel ..............................................................91
5-3 Maximum Forward Gears ...............................................91
5-4 Sequential Gear Change ................................................91
5-5 Gear Ratios.................................................................... 91
5-6 Bell Housing .................................................................. 91
5-7 Axle Retention ................................................................91
5-8 Attenuator .......................................................................92
SECTION 6 – WHEELS & TIRES
6-1 Official Tire......................................................................92
6-2 Tire Control .....................................................................92
6-3 Tire Testing......................................................................93
6-4 Wheels ............................................................................93
SECTION 7 –SUSPENSION
7-1 Design.............................................................................94
7-2 Rear Suspension ........................................................... 94
7-3 Active Suspension ......................................................... 94
7-4 Shock Absorbers ........................................................... 94
SECTION 8 – CHASSIS/BODY DIMENSIONS
8-1 Basic Dimensions ...........................................................95
SECTION 9 - BRAKES
9-1 Rotors .............................................................................95
9-2 Calipers.......................................................................... 96
9-3 Brake Hat....................................................................... 96
9-4 Rolex 24 Brake Systems ................................................96
9-5 DP Brake Systems..........................................................96
SECTION 10 – FUEL SYSTEM
10-1 Specification ...................................................................96
10-2 Location......................................................................... 97
10-3 Fueling ........................................................................... 97
10-4 Fuel Capacity................................................................. 97
SECTION 11 - TELEMETRY/DATA RECORDING
11-1 Data Recorder.................................................................97
SECTION 12 - IDENTIFICATION
12-1 Car Identification ............................................................97
12-2 Engine Identification .......................................................98
SECTION 13 - SAFETY EQUIPMENT
13-1 Fire Extinguishers ...........................................................98
13-2 Wheel Tethers .................................................................99
GT REGULATIONS
SECTION 1 - General Class Explanation and Purpose
1-1 Purpose .......................................................................102
1-2 Specifications................................................................102
1-3 Categories.....................................................................102
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SECTION 2 - GENERAL ENGINE REGULATIONS
2-1 Eligibility .......................................................................102
2-2 Engine Location........................................................... 103
2-3 General Engine Requirements .................................... 103
2-4 Exhaust Systems......................................................... 105
2-5 Cylinder Heads .............................................................105
2-6 Camshaft, Valve Lifter, and Rocker Arms.....................105
2-7 Intake Manifold .............................................................105
2-8 Air Cleaner, and Air Intake............................................105
2-9 Electrical System ..........................................................105
2-10 Radiator ....................................................................... 105
SECTION 3 - CAR BODY REQUIREMENTS
3-1 Bodywork - (Prep 1)......................................................106
3-2 Bodywork - Prep 2)...................................................... 107
3-3 Dash/Installed Components......................................... 109
3-4 Windows ...................................................................... 109
3-5 Floor............................................................................. 110
3-6 Rear Wing .................................................................... 111
3-7 Front Splitter/Air Dam................................................... 111
3-8 Air Inlets ....................................................................... 111
3-9 Lighting......................................................................... 112
SECTION 4 - DRIVE TRAIN
4-1 Drive Train (Prep 1) ..................................................... 112
4-2 Drive Train (Prep 2) ..................................................... 112
4-3 Clutch/Flywheel.............................................................113
4-4 Maximum forward gears ...............................................113
4-5 Bell housing/Adapter Plate............................................113
4-6 Prop/Drive Shaft............................................................113
SECTION 5 – WHEELS AND TIRES
5-1 Official Tire ...................................................................114
5-2 Tire control ....................................................................114
5-3 Testing...........................................................................114
5-4 Wheels ..........................................................................115
SECTION 6 - SUSPENSION AND STEERING
6-1 Suspension (Prep 1) .....................................................116
6-2 Suspension (Prep 2) .....................................................117
SECTION 7 - BRAKES
7-1 Brake Rotors ................................................................ 118
7-2 Brake Calipers ............................................................. 118
7-3 Brake Master Cylinders................................................ 119
SECTION 8 -FUEL SYSTEM
8-1 Fuel Tanks.....................................................................119
8-2 Fittings and Piping ........................................................119
8-3 Fuel Tank Fillers............................................................119
SECTION 9 - WEIGHT
9-1 Maximum permitted rear weight percentage ................120
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SECTION 10 - MANUFACTURERS
10-1 Manufacturers...............................................................120
GX REGULATIONS
SECTION 1 - General Class Explanation and Purpose
1-1 Purpose .......................................................................122
1-2 Specifications................................................................122
1-3 Categories.....................................................................122
SECTION 2 - GENERAL ENGINE REGULATIONS
2-1 Eligibility .......................................................................122
2-2 Engine Location........................................................... 123
2-3 General Engine Requirements .................................... 123
2-4 Exhaust Systems......................................................... 125
2-5 Cylinder Heads .............................................................125
2-6 Camshaft, Valve Lifter, and Rocker Arms.....................125
2-7 Intake Manifold .............................................................125
2-8 Air Cleaner, and Air Intake............................................125
2-9 Electrical System ..........................................................126
2-10 Radiator ....................................................................... 126
SECTION 3 - CAR BODY REQUIREMENTS
3-1 Bodywork - (Prep 1)......................................................126
3-2 Bodywork - (Prep 2)..................................................... 127
3-3 Dash/Installed Components......................................... 130
3-4 Windows ...................................................................... 130
3-5 Floor............................................................................. 131
3-6 Rear Wing.................................................................... 131
3-7 Front Splitter/Air Dam .................................................. 132
3-8 Air Inlets....................................................................... 132
3-9 Lighting ........................................................................ 132
SECTION 4 - DRIVE TRAIN
4-1 Drive Train (Prep 1) ..................................................... 132
4-2 Drive Train (Prep 2) ..................................................... 133
4-3 Clutch/Flywheel.............................................................134
4-4 Maximum forward gears ...............................................134
4-5 Bell housing/Adapter Plate ...........................................134
4-6 Prop/Drive Shaft ...........................................................134
SECTION 5 – WHEELS AND TIRES
5-1 Official Tire ...................................................................134
5-2 Tire control ....................................................................134
5-3 Testing...........................................................................135
5-4 Wheels..........................................................................136
SECTION 6 - SUSPENSION AND STEERING
6-1 Suspension (Prep 1).....................................................136
6-2 Suspension (Prep 2).....................................................137
SECTION 7 - BRAKES
7-1 Brake Rotors................................................................ 139
7-2 Brake Calipers ............................................................. 139
xi

7-3 Brake Master Cylinders ............................................... 139
SECTION 8 -FUEL SYSTEM
8-1 Fuel Tanks.....................................................................139
8-2 Fittings and Piping ........................................................140
8-3 Fuel Tank Fillers............................................................140
SECTION 9 - WEIGHT
9-1 Maximum permitted rear weight percentage ................140
SECTION 10 - MANUFACTURERS
10-1 Manufacturers...............................................................140
CONTINENTAL TIRE SPORTS CAR CHALLENGE
SECTION 1 - PURPOSE
1-1 Purpose .......................................................................142
SECTION 2 - ELIGIBILITY
2-1 Eligibility....................................................................... 142
2-2 Classes ........................................................................ 142
2-3 Recognition/Configuration........................................... 143
SECTION 3 - CHASSIS/BODYWORK REGULATIONS
3-1 Drive and Steering .......................................................144
3-2 Added car weight ........................................................ 144
SECTION 4 - FUEL/FUEL CELLS
4-1 Fuel Tank/Cell .............................................................. 144
4-2 Fuel Fillers/Vents ......................................................... 144
4-3 Fuel Lines .................................................................... 145
4-4 Fuel Capacity............................................................... 145
SECTION 5 - MANDATORY SAFETY EQUIPMENT/
MODIFICATIONS
5-1 Roll Cage .....................................................................145
5-2 Glass............................................................................ 146
5-3 Other Safety Modifications.......................................... 146
SECTION 6 - AUTHORIZED MODIFICATIONS
6-1 Standard Components ................................................ 146
6-2 Brakes.......................................................................... 146
6-3 Shocks, Springs, Suspension ..................................... 147
6-4 Lights ........................................................................... 148
6-5 Exhaust System........................................................... 148
6-6 Turbocharging/Supercharging ..................................... 149
6-7 Other Items Which May Be Substituted...................... 150
6-8 Engine.......................................................................... 151
6-9 Steering Wheel/Steering System................................. 152
6-10 Doors/Hood/Body Shell............................................... 152
6-11 Ride Height/Track ........................................................ 152
6-12 Items That May Be Removed...................................... 153
6-13 Gearbox, Differential, Drivetrain .................................. 153
6-14 Tires ............................................................................. 153
SECTION 7 - VEHICLE ELIGIBILITY AND NOTES
xii

PREFACE
The Grand American Road Racing Association LLC (“GRAND-AM”)
Rulebook is designed to provide for the orderly conduct of all GRAND-
AM sports car sanctioned activities and takes effect immediately upon
publication.
The Rulebook consists of the following 3 Articles:
1. Article 1 - The General Sporting Regulations (“GSR”). The
GSR contains the basic rules and Regulations under which
GRAND-AM and its Series are organized under. Where no
other section of the Regulations addresses an issue, the GSR
governs.
2. Article 2 - The General Automobile Regulations (“GAR”). The
GAR provides the general technical and safety specifications
of the Car and equipment. Where no other section of the
Regulations addresses an issue, the GAR governs.
3. Article 3 - The General Class Regulations (“GCR”). The GCR
provides the technical specifications for each class of Cars:
(“DP-GCR”), (“GT-GCR”) and (Continental: (GS/ST-GCR”).
Where the GAR and a GCR conflict, the GCR prevails.
In addition to the Rulebook, GRAND-AM may issue:
1. Specific Car Regulations (“SCR”) that provide technical
specifications for a specific make and model of Car (such as
the constructor and engine for the DP Cars). Where the
Rulebook and the SCR conflict, the SCR governs.
2. Supplementary Regulations (“SR”) that provide rules and
specifications specific to an Event. Where the Supplementary
Regulations are in conflict with the Rulebook or the SCR, the
Supplementary Regulations govern.
Finally, GRAND-AM communicates to its Members through
Bulletins, through its Director of Competition and through Officials.
Such communication may amplify, amend, clarify or modify the
Rulebook, SCR and/or SR.
All together, these publications and any amendments, along with
any applicable agreements to which GRAND-AM is a party, form the
“Regulations” for GRAND-AM and its Members. The purpose of the
Regulations is to: (i) promote safety, the sport of automotive compe-
xiii

tition and GRAND-AM, (ii) enhance competition, (iii) ensure the
quality, fairness and integrity of the GRAND-AM programs and
operations and (iv) achieve prompt finality in the competition results
(“the Purpose”).
It is ultimately the obligation of each Member to ensure their
conduct and equipment comply with all applicable Regulations. No
express or implied warranty of safety shall result from publication
of, or compliance with, the Regulations. They are intended as a
guide for the conduct of automobile racing and are in no way a
guarantee against injury or death to participants, spectators, or
others.
xiv

2013
SPORTING REGULATIONS
1

SPORTING REGULATIONS
SECTION 1 – GENERAL RULES PROCEDURE
1.1 Applicability. The Regulations apply to all Events. For all
Members, the Rulebook, as part of the Regulations, establishes
the foundation for the organization and conduct of all
Events.
1.2 Amendments. GRAND-AM reserves the right to amend, or
modify, the Regulations at any time in furtherance of “the
Purpose”. Such amendments become effective upon publication
by GRAND-AM, in the manner of its choice, regardless
of when a Member receives actual notice.
1.3 Definitions and Terms. The following terms, appearing periodically
throughout the Regulations, have the following
meanings:
• Car means an automobile approved for racing competition.
• Commitment Line means where the start of the pit lane
speed limit begins, normally indicated by cones at pit
entrance.
• Competitor means Member, Entrant, Driver, Car owner,
team manager, Crewmember or any other person (other
than an Official) who participates competitively in an
Event. Whenever the words Competitor, Entrant, Driver,
Car owner, team manager, mechanic, team member or
Crewmember are used, unless the context indicates
otherwise, the term used is interpreted to include any
Driver, Entrant, Car owner, team manager, mechanic,
team member or Crewmember assigned to or a member
of the same racing team.
• Conclusive means that such action, inaction, and/or decision
are final and not subject to protest, appeal and/or
litigation.
• Continental Tire Sports Car Challenge (CTSCC) denoted
in parentheses and italicized where Regulations differ
from the Rolex Series.
• DP means a Daytona Prototype Car or the Daytona
Prototype class.
• Event means an entire program of Grand-Am sanctioned
competitions.
• FIA (Federation Internationale de I’Automobile) means the
International Federation of National Automobile Clubs.
2

• Finish(ing) Line means the point on-track where timing
and scoring ends.
• GRAND-AM means the national sanctioning organization
formed to promote sports car road racing and the trade
name and registered service mark of Grand American
Road Racing Association, LLC.
• (Continental: GS means a Grand Sport Car or the Grand
Sport class.)
• GT means a Grand Touring Car or the Grand Touring
class.
• Headquarters means the principal office of GRAND-AM,
located at One Daytona Boulevard, Daytona Beach,
Florida, 32114.
• Member means an individual or entity accepted by
GRAND-AM as a Member pursuant to the Regulations
whose membership is not expired, suspended, canceled
or terminated.
• OE means original equipment as delivered on a Car built
by a recognized automobile manufacturer and delivered
via a regular retail sales outlet.
• Paddock means the area within the facility where Entrants
park their transporters and work on the Car between
Sessions.
• Pit Stall means the working area along pit lane assigned
to an Entrant during a Session, in which the Competitors
may place their equipment and service the Car.
• Promoter means an individual, partnership, corporation,
joint venture or other legal entity that, in connection with
the Event, is designated as the “Promoter” in the
executed Sanction Agreement for the Event.
• Race means the Car competition during an Event, listed
on the GRAND-AM season schedule, for which championship
points and awards are distributed based upon
finishing position.
• Race Equipment means a Car, Car part, engine, engine
component, tires, fuel, support equipment and/or any
other part or related equipment.
• Race Procedure means the manner in which an Event is
conducted. It includes, but is not limited to, determinations
regarding the eligibility of Cars for competition,
qualifying procedures, the line-up of the Cars, the start of
the Race, the control of Cars throughout the Race by
flags, lights, or other direct communication, the election
to stop or delay a Race, control of pit activity, flagging,
the positioning of Cars at any time, the assessment of lap
and time penalties, and the completion of the Race. It
3

does not include the assessment of penalties (disqualification,
suspension or fine) except lap and/or time
penalties imposed during a Race or immediately after a
Race.
• Regulations mean the rules and Regulations governing
the organization, sanctioning and conduct of Events. This
includes but is not limited to, the Rulebook,
Supplementary Regulations and Bulletins.
• Safety Car means a non-competition vehicle used during
the exploratory laps prior to the start of the Race and
during a Race to collect the field of Cars during an intervention.
• Sanction Agreement means the documentary authority,
granted by GRAND-AM, to organize and hold a competition.
• Series means the individual series sanctioned by
GRAND-AM.
• Session means the time from the official start of the
Session as determined by the Official Schedule and
Timing and Scoring, through the official time of the end of
the Session as determined by the Official Schedule or
adjusted by Race Control until the last running Car exits
the racing surface and the Cars have cleared pit lane.
• Single File means a line of Cars arranged one behind
another without overtaking.
• Start(ing) Line means the point on-track where timing and
scoring begins.
• (Continental: ST means Street Tuner Car or the Street
Tuner Class.)
• Supervisory Officials means the officers, employees or
agents of GRAND-AM as designated by GRAND-AM.
The Supervisory Officials for 2013 include:
• Ed Bennett, President & Chief Executive Officer
• Richard Buck, Managing Director, Competition
• Gabriel Cadringher, Managing Director, Technical
Regulations and Development
• Mark Raffauf, Managing Director of Racing Operations
• Gary Cummings, GRAND-AM Rolex Sports Car Series
Manager
• Jeff Smallwood, GRAND-AM Continental Tire Sports
Car Challenge Series Manager
• Mike Kraemer, Competition Senior Project Manager
• Rob Elson, Technical Manager
• Tom Seabolt, Race Operations Manager
• Don Abbott, Chief Scorer
• Mary Suarez, Director of Member Services
4

• Supplementary Regulations (SR) means additional rules
specific to an Event.
• Test(ing) means all forms of Testing on or off-track.
• Tire Set means two front tires and two rear tires.
1.4 Interpreting and Applying the Regulations.
1.4.1 Pronouns. The pronouns “he”, “his”, and “him” are
generic and not intended to indicate gender.
1.4.2 Money. All monetary amounts specified are in US
Dollars.
1.4.3 Forms and Information. All forms and information
referred to in the Regulations can be obtained from
Headquarters and/or GRAND-AM.com.
1.4.4 Notice. Receipt is determined by the date
contained in the U.S. postal mark (if mailed),
GRAND-AM recognized courier receipt, or the
GRAND-AM date or fax time code stamp (if delivered
in person or sent by fax).
1.5 Interpretation and Application. In any dispute regarding the
Regulations, the interpretation and application of the Officials
shall prevail. Notwithstanding the foregoing or any other
provision in the Regulations, Supervisory Officials may review
an Official’s interpretation or application of the Regulations
where such Supervisory Officials deem such review to be
appropriate. The interpretation and application of the
Regulations by the Officials (or by a Supervisory Official) are
Conclusive, except as provided for in the Regulations. In
furtherance of “the Purpose”, all Members, including but not
limited to, Competitors, expressly agree that:
1.5.1 NON-LITIGABLE. DETERMINATIONS MADE BY
GRAND-AM AS TO THE APPLICABILITY AND
INTERPRETATION OF THE REGULATIONS ARE
NON-LITIGABLE, AND THEY WILL NOT INITIATE
OR MAINTAIN LITIGATION OF ANY KIND AGAINST
GRAND-AM OR ANYONE ACTING ON BEHALF OF
GRAND-AM, TO REVERSE OR MODIFY SUCH
APPLICATION AND/OR INTERPRETATION OR TO
RECOVER DAMAGES OR TO SEEK ANY OTHER
KIND OF RELIEF AS A RESULT OF SUCH DETER-
MINATIONS. IF THE LITIGATION IS NOT
DISMISSED PURSUANT TO THIS COVENANT,
THE MATTER WILL BE TRIED BEFORE A JUDGE
OF COMPETENT JURISDICTION AND THE
MEMBER HEREBY WAIVES ANY RIGHT TO TRIAL
BY JURY IN SUCH ACTION. GRAND-AM
5

RESERVES THE RIGHT TO TAKE ANY OTHER
ACTION HEREUNDER, INCLUDING SUSPENSION
OR TERMINATION OF MEMBERSHIP, FOR VIOLA-
TION OF THIS SECTION.
1.5.2 Reimbursement of Legal Fees. Any Member that
initiates or maintains litigation in violation of this
provision agrees to reimburse GRAND-AM for all
costs of such litigation, including travel expenses
and attorney’s fees.
1.6 Principal Rule. On occasion, circumstances are presented,
either unforeseen or otherwise extraordinary, in which strict
application of the Regulations may not achieve “the Purpose.”
In such rare circumstances, Officials, as a practical matter,
may make a determination that is not contemplated by or is
inconsistent with the Regulations. Such determinations are
reviewable by Supervisory Officials. All such determinations
are Conclusive, except as provided for in the Regulations.
1.7 Submission to the Regulations. No express or implied
warranty of safety shall result from the publication and/or
compliance with the Regulations. Every person, entity, group
of persons, or Promoter, and any person who receives a
Membership, warrants that (i) he agrees without reservation
to know and abide by the Regulations, (ii) he renounces the
right to have legal recourse, except with the written consent
of GRAND-AM, to any arbitrator or tribunal not provided for
in the Regulations.
SECTION 2 - GRAND-AM MEMBERSHIP
2.1 Authority. GRAND-AM may, but is not required to, accept as
a Member any individual or entity, as long as the applicant
submits a properly executed Membership Application with
the appropriate fee and meets the required qualifications.
GRAND-AM is dedicated to the highest degree of professionalism,
sportsmanship and integrity. For that reason,
GRAND-AM at its sole discretion, may reject the application
of an otherwise qualified applicant if it is in the interest of
GRAND-AM or the sport of automobile racing, for reasons
including but not limited to, the applicant’s participation or
involvement in conduct inconsistent with “the Purpose”,
whether in the course of racing activity or not, and whether
or not the applicant was a Member or applicant at the time
of such conduct. The affected Member may appeal such
determination directly to the Chief Appellate Officer, in accor-
6

dance with the Regulations. Notwithstanding the foregoing,
all decisions as to an applicant’s driving ability and/or physical
condition are Conclusive.
2.2 Reservation of Rights. GRAND-AM reserves the right to
deny entry to any Event to any Member or to revoke any
Membership or credential previously issued by GRAND-AM
for any reason or no reason, except that GRAND-AM will not
deny or revoke a Membership or credential solely on the
basis of race, creed, color, sex, or national origin.
2.3 Membership Requirement. Any person or entity desiring to
participate in GRAND-AM as a Driver, Entrant, Crewmember,
permanent media, Industry Representative, partner or
Official must be a current Member of GRAND-AM in the
capacity in which they wish to participate.
2.3.1 Exception. A competition license issued by the FIA
as a Driver or Entrant for persons who reside internationally
is recognized for participation in an Event
listed on the FIA calendar but does not include a
GRAND-AM Membership or any benefits or privileges
of such Membership, including but not limited
to point awards, point fund awards or participant
accident insurance:
2.3.2 FIA Membership. Every Driver in a FIA-listed Race
must possess a current FIA Driver License regardless
of other licensing. Every Car entered in a
FIA-listed Race must be entered by someone
possessing a current FIA Entrant License regardless
of other licensing. Applications for FIA licenses
may be obtained from GRAND-AM.
2.4 Application Procedure. An applicant must submit a fully
completed and properly signed Annual Membership
Application (waiver) accompanied by the appropriate
Membership fee to Headquarters. The receipt of an applicant’s
Annual Membership Application and/or fee does not
constitute the issuance of, or approval by GRAND-AM of
such Annual Membership Application. An applicant is notified
in writing by GRAND-AM whether their application has
been approved.
2.4.1 Minors. All applicants 16, 17 or 18 years old at the
time of application and not legally emancipated,
must include with their Annual Membership
Application and fee, a fully complete Minor
Participant Waiver signed by the applicant and the
7

applicant’s father, mother, and/or legal guardian. All
signatures on the Minor Participant Waiver must be
notarized unless the minor applicant is applying in
person at Registration during a GRAND-AM Event
and his father, mother and/or legal guardian is
present, in which case all parties must sign before
a GRAND-AM Official. An applicant 16, 17 or 18
years old and emancipated, must include with their
Annual Membership Application and fee, a copy of
the emancipation order. Specific Events may have
additional requirements for minors that must be
fulfilled prior to participation in such Event.
2.4.2 Business Entities. If applicant is a partnership,
corporation or other legal entity, the person responsible
for all communication and contact with
GRAND-AM regarding the entity must fill out the
Annual Membership Application and such person
must meet the eligibility requirements for the
capacity in which the entity wishes to participate.
2.5 Eligibility Requirements.
2.5.1 Driver. To secure and maintain Membership in the
capacity of Driver, an applicant must at minimum: (i)
Be 16 years of age; (ii) If requested, submit to and
pass a driving ability test(s) conducted by and at
the discretion of GRAND-AM; and (iii) Be physically
fit as determined at the sole discretion of GRAND-
AM. In this regard, GRAND-AM may require an
applicant to pass one or more physical examination(s)
by a qualified physician(s).
2.5.2 Entrant. To secure and maintain a Membership in
the capacity of Entrant, an applicant must, at
minimum, be 21 years of age.
2.5.3 Crewmember. To secure and maintain
Membership in the capacity of Crew member, an
applicant must at minimum: (i) Be 16 years of age
and (ii) Be physically fit as determined in the sole
discretion of GRAND-AM. In this regard, GRAND-
AM may require an applicant to pass one or more
physical examination(s) by a qualified physician(s).
2.5.4 Official. To secure and maintain Membership in the
capacity of Official, an applicant must at minimum:
(i) Be 18 years of age; (ii) Possess, in the sole
discretion of GRAND-AM, the necessary qualifications
and abilities to carry out the duties of an
Official; and (iii) Be physically fit as determined in
8

the sole discretion of GRAND-AM. In this regard,
GRAND-AM may require an applicant to pass one
or more physical examination(s) by a qualified
physician(s).
2.5.5 Partner. To secure and maintain Membership in the
capacity of Partner, an applicant must at minimum:
(i) Be 21 years of age; and (ii) Be an employee
or agent of an entity which has a direct contractual
relationship with GRAND-AM (Sponsor, Contin -
gency Partner, OEM, Series Sponsor, Promoter,
etc.)
2.5.6 Industry Representative. To secure and maintain
Membership in the capacity of Industry
Representative, an applicant must at minimum:
(i) Be 19 years of age; and (ii) Be an employee or
agent of a company that supplies products or services
to Competitors. Annual credentials are not
available to Industry Representatives.
2.5.7 Media. To secure and maintain Membership in the
capacity of Media Representative, an applicant
must at minimum: (i) Be 19 years of age; and (ii) Be
assigned to cover GRAND-AM Event(s).
2.6 Credentials. Only persons approved by GRAND-AM are
permitted to enter restricted areas (i.e., garage areas, pits,
racing surface and similar areas) after they have personally
signed all required entry forms, waiver and release of liability
forms and pit permits applicable to the particular Event and
obtain a credential. Persons are prohibited from signing at
any time, for any reason, any entry form, waiver and release
of liability form or pit permit for anyone other than themselves.
Credentials must be displayed at all times during an
Event. Competitors must not enter Race Control, timing and
scoring and/or the broadcast compound during any Session
unless permitted or directed by an Official.
2.6.1 Eligibility. Annual credentials are available for
Members in the capacity of: Entrant, Driver, Partner,
Crew member, Media, Official and VIP upon execution
and acceptance by GRAND-AM of an Annual
Credential Application. GRAND-AM single Event
licenses are available in the capacity of: Entrant,
Driver, Partner, Crew member, Official, VIP and
Industry Representative.
2.7 Member Status. All Membership cards and credentials
issued by GRAND-AM remain the property of GRAND-AM
9

and expire December 31st of the year of issue. Privileges
may be revoked at any time for non-compliance with the
Regulations. All Members of GRAND-AM must, willingly and
without reservation, present their Membership card and/or
credential to Officials upon request. GRAND-AM in its sole
discretion may review the qualifications of any Member at
any time and may require such Member to submit to additional
physical examination(s) Driver ability test(s), provide a
resume to include Driver information and record of competition
and/or take any other action or require the Member to
take any action, as GRAND-AM deems appropriate, to determine
whether the Member continues to qualify in the
appropriate capacity, as set forth in the Regulations.
2.7.1 Independent Contractor. Members are independent
contractors who assume and take full
accountability for reporting and paying to the
appropriate authorities all charges, premiums and
taxes, if any, due and payable on any funds
Members may receive as a result of their participation
in Events, including but not limited to Social
Security taxes, unemployment insurance taxes,
workman’s compensation insurance, income taxes
and withholding taxes. A Member is not an agent,
servant or employee of GRAND-AM by virtue of
such Membership. Each Member is responsible for
compensating their employees and/or agents and
assumes all responsibility for the actions of the
Member’s employees and/or agents.
2.7.2 Revocation. GRAND-AM may suspend a Member
for a definite or indefinite period of time or terminate
such Membership indefinitely, in the interest of
GRAND-AM or the sport of automobile racing.
Upon suspension or revocation, the Member must
promptly forward the Membership card and any
credentials to Headquarters. If the Member fails to
do so, the Membership becomes inoperative and
invalid, unless the Member has been suspended, in
which case the Membership becomes inoperative
and invalid until the lifting of the suspension.
GRAND-AM will return the Membership card and
credential (if applicable) to the Member upon the
lifting of the suspension. Such Member has no right
to receive, and GRAND-AM is not obligated to
refund, any part or all of the fees paid by Member.
The affected Member may appeal such suspension
10

or termination directly to the Chief Appellate Officer,
in accordance with the Regulations.
2.7.3 Voluntary Termination. A Member may terminate
his Membership at any time by providing a letter of
resignation and their Membership card and credentials
to Headquarters. Such Member shall have no
right to receive, and GRAND-AM is not obligated to
refund, any part or all of the fees paid by Member.
2.7.4 Non-Transferable. A Membership and/or credential
is non-transferable and non-assignable. It must
only be used by the person to whom it is issued.
Any attempt to transfer, lend, or permit any other
person or entity to use it shall result in a penalty. IF
FOR ANY REASON, WHETHER INTENTIONAL OR
UNINTENTIONAL, A MEMBERSHIP AND/OR
CREDENTIAL IS USED BY ANY OTHER PERSON,
SUCH MEMBER(S) SHALL INDEMNIFY GRAND-
AM AND ALL RELATED PARTIES FOR ANY
DAMAGES ARISING FROM SUCH USE.
2.8 Member Conduct. Each Member is expected to conduct
themselves in a professional and sportsmanlike manner.
Persons whose appearance, associations or affiliations at or
away from an Event are deemed inappropriate or who exhibit
conduct which is offensive, abrasive, in bad taste, or otherwise
inappropriate or who have been convicted of criminal
activity, may be denied Membership or may have their
existing Membership suspended or revoked by GRAND-AM.
Such conduct may also result in penalties at the discretion of
GRAND-AM.
2.8.1 Fan Engagement. Members may be required to
take part in certain fan and media activities
including, but not limited to, autograph sessions,
television interviews, fan forums, tech talks, pit lane
or Paddock fan walks. Failure or refusal to participate
as directed, once scheduled and notified,
arriving late, or departing early without the permission
of GRAND-AM, may result in the imposition of
penalties.
2.8.2 Disparagement. Any Member that publicly criticizes
GRAND-AM, its employees or its Officials
may be considered to be acting in an unsports -
manlike manner prejudicial or detrimental to
GRAND-AM or the sport of automobile racing and
may be subject to penalties.
11

2.8.3 Payment. Failure to pay all sums due to GRAND-
AM or its contractors, agents, affiliated companies
or Promoters may result in penalties.
2.9 Entrant Obligations. It is the responsibility of the Entrant,
wishing to participate in an Event, to obtain the appropriate
Official Entry Form and to ascertain and abide by all applicable
deadlines and instructions. Such Entrant or his
nominated designee is the sole spokesperson for its
Competitors in any and all competition matters pertaining to
the Event.
2.9.1 Car Registration. All Entrants must register their
Car(s) with GRAND-AM by completing the necessary
application forms and paying the appropriate
fees.
2.9.2 Competition Numbers. Competition numbers are
assigned by GRAND-AM following the completion
of the registration process and are non-assignable
and non-transferable, except by GRAND-AM. The
Entrant must use the assigned competition number
on the Car registered by the Entrant. During an
Event, the Entrant must use the competition
number to identify a particular Car and it must not
be transferred to another Car during the Event,
except with GRAND-AM approval. At subsequent
Events, the Entrant may use the competition
number to identify a different Car registered by the
Entrant. Points and other prizes are awarded to the
Entrant for the performance of the Car identified by
the competition number assigned to the Entrant. If
GRAND-AM changes an Entrant’s competition
number, GRAND-AM, at its sole discretion, may
transfer the Entrant’s championship points to the
new competition number. GRAND-AM reserves the
right to revoke, reassign or transfer competition
numbers at any time.
2.9.3 Responsibility. Entrants are at all times responsible
for the conduct of their Competitors. An offense
committed by a Competitor may be charged to the
Entrant. Unpaid fines of the Entrant, its designee
and/or Competitors may be collected by deducting
the amount from the purse or point fund earnings of
the Entrant.
2.9.4 Entrant Representative. When the Entrant cannot
be present at an Event or is otherwise unavailable,
he must designate a Member to be the Entrant’s
12

epresentative in regards to all actions that an
Entrant may take under the Regulations for such
Event.
2.9.5 Change in Ownership. With respect to an Entrant
that is a business entity, the Entrant must inform
Headquarters in writing promptly if the entity is
altered in any material manner or the entity’s stock
or assets are sold (other than routine daily stock
sales) or becomes the subject of a merger or the
entity’s ownership interest materially changes.
When informed of such a change, GRAND-AM in its
sole discretion may revoke the entity’s
Membership. If the new entity submits a new
Annual Membership Application, GRAND-AM may
assign the previous competition number(s) to the
new Entrant or may assign different competition
number(s). GRAND-AM in its sole discretion may
assign to the new Entrant the championship points
earned by the former Entrant and such other determinations
regarding scoring, point funds and the
distribution of the purse or prize monies if doing so
is in the furtherance of “the Purpose”.
2.9.6 Competitive Analysis. GRAND-AM may require
Entrants to submit Race Equipment for analysis of
performance capabilities in order to promote closer
competition. Entrants must take all necessary steps
to enable such tests. GRAND-AM is not responsible
for any payment, reimbursement, damage or loss
as a result of such analysis.
2.10 Substance Abuse Policy. GRAND-AM’s Substance Abuse
Policy (“Policy”) prohibits the misuse of alcohol, prescription
drugs and/or any other substance used in a manner that
affects the safety of competition, including but not limited to,
illegal substances. As part of the Regulations, Members are
subject to the Policy, which can be found in its entirety on
GRAND-AM.com.
2.10.1 Reasonable Suspicion. GRAND-AM may require a
Member to submit to a test(s) if an Official has
reasonable suspicion that (i)the Member has
violated any part of the Policy as a result of using
any prohibited substance, or (ii) has diminished
ability to perform as a result of using any prohibited
substance. Some conditions, observations and/or
reports that may cause such reasonable suspicion
are, without limitation, as follows:
13

• Being found or observed in possession of
illegal substances or illegal drug paraphernalia,
at any time.
• Observation of signs, symptoms and/or
behaviors generally understood to accompany
the use of prohibited substances including,
without limitation, physical signs of red or
droopy eyes, dilated or constricted pupils,
constant running nose, red appearance in the
face, persistent sniffing, slurred speech, stumbling,
hyperactivity, needle marks, repeated
unexplained disappearances from an Event,
time distortion including repeated tardiness
and missed appointments, chronic forgetfulness
or broken promises, accidents during an
Event(s), inability to concentrate or remember
or to maintain attention, mental confusion,
paranoia, presence of abnormal thoughts or
ideas, violent tendencies, loss of temper, irritability,
extreme personality change or mood
swings, deteriorating personal hygiene or
appearance, violation of safety precautions or
careless acts during an Event.
• An arrest or conviction for driving while under
the influence of alcohol or drugs, or a drug
related conviction.
• Receipt of a report from a reliable source that
a Member is under the influence of prohibited
substances or is using, possessing or selling
illegal drugs or substances.
• The results of an examination or test, as
provided by the Regulations, which shows
evidence of use of a prohibited substance,
alcohol abuse or of adulteration or manipulation
of the specimen.
• The odor or aroma of an alcoholic beverage on
or about the breath or body of a Member
consistent with use of such a substance or
alcoholic beverage on the day of an Event.
2.10.2 Refusal. If a Member refuses to consent to and
participate in a test within the time period designated
by an Official, the Member may be removed
from the Event by the Race Director and may be
subject to other emergency action as may be
appropriate, including penalties.
14

SECTION 3 - ADMINISTRATION OF EVENTS
3.1 Event. GRAND-AM approves an annual calendar of Events.
An Event or a competition forming part of an Event may be
canceled, rescheduled, or postponed by GRAND-AM for
reasons of safety, or forces beyond GRAND-AM’s control. If
an entire Event is canceled prior to its commencement,
GRAND-AM will make every effort to notify all parties
concerned, but accepts NO responsibility for such cancellation,
or failure to notify.
3.1.1 Advertising and Promotion Release. Each
Competitor by entering an Event, grants to
GRAND-AM, its duly authorized agents, assigns
and licensees, including but not limited to the
Series sponsor and Promoters, on an exclusive
basis, the right to use and sublicense, Competitor’s
name, likeness and performance, in and out of
uniform, including photographs, images and
sounds of Competitor, any Crewmember and/or
any Car(s) with respect to which Competitor participates
in the Event(s), in any way, material or
medium (including but not limited to print, broadcasts
by and through television, cable television,
radio, pay-per-view, closed circuit television, satellite
signal, digital signal, film productions, audiotape
productions, transmissions over the Internet, public
and private online services authorized by GRAND-
AM, sales, other commercial projects and/or the
like) for promoting, advertising, or reporting
GRAND-AM racing generally, the GRAND-AM
Series in which Competitor participates, and/or any
Event(s) or related telecast or programming, before,
during and after such Event and Competitor hereby
relinquishes to GRAND-AM exclusively and in
perpetuity all rights thereto for such purpose.
3.1.2 Broadcast Rights. Each Competitor by entering an
Event acknowledges that GRAND-AM exclusively
and in perpetuity owns any and all rights to broadcast,
transmit, film, tape, capture, overhear,
photograph, collect or record by any means,
process, medium or device (including but not
limited to television, cable television, radio, payper-view,
closed circuit television, satellite signal,
digital signal, film productions, audiotape productions,
transmissions over the Internet, public and
private online services authorized by GRAND-AM,
15

sales, other commercial projects and/or the like),
whether or not currently in existence, all film, audio,
video and/or photographic images, sounds and
data (including but not limited to in-Car audio, in-
Car video, in-Car radio, other electronic
transmissions between Cars and Crewmembers
and timing and scoring information) arising from,
during, or in connection with the Event(s)
(“Work(s)”) and that GRAND-AM is and shall be the
sole owner of any and all intellectual property rights
(including, but not limited to, patents, copyrights,
trademarks, design rights, and other proprietary
rights) worldwide in and to the Work(s) and in and
to any other Work(s), copyrightable or otherwise
created from the images, sounds and data arising
from, during or in connection with the Event(s). In
addition to the extent not already owned by
GRAND-AM, Competitor hereby assigns to
GRAND-AM exclusively and in perpetuity any and
all rights set forth above. Competitor agrees to take
all steps reasonably necessary, and all steps
requested by GRAND-AM, to protect, perfect or
effectuate GRAND-AM’s ownership or other
interest in these rights. Competitor agrees not to
take any action, nor cause others to take any
action, nor enter into any third party agreement that
would contravene, diminish, encroach or infringe
upon these GRAND-AM rights.
3.2 Safety
3.2.1 Participant Accident Insurance. GRAND-AM
provides participant accident insurance coverage
at Events as follows:
• $50,000 Accidental Death and
Dismemberment
• $50,000 Excess Medical
• $1,000,000 Excess Catastrophic Medical
• $100 per week Weekly Indemnity for the first
52 weeks
3.2.2 Injuries. Any Competitor involved in an incident in
which there is an injury, must report such incident
to an Official prior to leaving the Event on the day
the incident occurred. Where there is significant
damage or injury, or at the direction of any Official,
a Competitor MUST present himself or be transported
to the track medical facility for evaluation.
16

Participant accident insurance coverage may be
declined by the insurance provider if an Official is
not notified and/or the Competitor is not evaluated
by the track medical staff. The Competitor is solely
responsible for all medical costs, including any
costs associated with off-site medical transportation,
for injuries not covered by the insurance
provider.
3.2.3 Assumption of Risk. Automobile racing is an
inherently dangerous sport and each Competitor
assumes that risk when participating in an Event.
The risk of serious injury or death cannot be eliminated
and is always present at a high level.
GRAND-AM cannot be and is not responsible for all
or even most aspects of the safety effort.
3.2.4 GRAND-AM Responsibility. Officials at an Event
will inform the Promoter of any inadequacies they
observe and consider in their best judgment to be
inconsistent with the interest of safety, including but
not limited to inadequacies in the racing facilities,
safety personnel, equipment and conditions of the
track. In addition, if an inadequacy is observed on a
Competitor’s Car, equipment, or conduct, Officials
may take whatever action is reasonable and appropriate
to correct such inadequacy, including but
not limited to, requesting physical examination(s)
and/or Driver ability tests. In any case, Competitor
is obligated to follow the Official’s directives.
GRAND-AM IS NOT RESPONSIBLE FOR THE
ACTIONS OR INACTIONS OF ANY OFFICIAL AS IT
PERTAINS TO SAFETY.
3.2.5 Promoter Responsibility. The Promoter is directly
and finally responsible to ensure that the facility is
adequate and that adequate safety personnel and
equipment are provided for at each Event, both for
the purpose of preventing injury where reasonably
possible, responding to injury when it occurs; and
that the conditions at the facility are maintained in a
reasonable manner to reduce the risk of injury, all as
more fully set forth in the Sanction Agreement
applicable to the Event.
3.2.6 Member Responsibility. All Members are obligated
to inspect the racing facility, safety personnel
and equipment and conditions of the track on a
continuing basis before, during, and after the Event.
Members must promptly report to GRAND-AM and
17

the Promoter any inadequacy in the facility,
personnel, equipment, or conditions of the track.
Members also are solely and directly responsible
for the safety of their Race Equipment and are obligated
to perform their duties in a manner designed
to minimize to the risk of injury to themselves and
others.
3.2.7 NEITHER GRAND-AM NOR THE PROMOTER IS
RESPONSIBLE FOR THE ADEQUACY OF A
COMPETITOR’S RACE EQUIPMENT, OR RACING
ACTIVITY TO ACCOMPLISH THIS PURPOSE.
GRAND-AM DOES NOT MAKE ANY REPRESEN-
TATIONS OR WARRANTIES OF SAFETY TO ANY
COMPETITOR OR OTHER PERSON, AND
CANNOT AND DOES NOT TAKE RESPONSIBILITY
TO ENSURE THE ADEQUACY, FOR PURPOSES
OF SAFETY, OF THE FACILITY, SAFETY
PERSONNEL OR EQUIPMENT, OR CONDITIONS
AT THE TRACK.
3.3 Testing Policy. GRAND-AM has the right to restrict Testing
during the season not sanctioned by GRAND-AM. Violation
of this policy is determined by GRAND-AM in its sole discretion
and the results of GRAND-AM’s investigation and
subsequent determination are Conclusive. Members who
engage in unapproved Testing of any type or Test using
unapproved tires are subject to revocation of their
Membership for up to one (1) year.
3.3.1 Stipulations. All DP and/or GT Testing is prohibited
unless pre-approved by GRAND-AM in writing.
Testing is prohibited at a track that is on the season
calendar until the conclusion of that Event for that
season. Requests meeting specific criteria may be
approved at the sole discretion of GRAND-AM.
3.3.2 Procedure. GRAND-AM must receive a written
request for approval to Test a minimum of two (2)
weeks prior to the requested Test date. The
request must include: who is participating, what
Car(s), when and where the Test is, and why the
Member wants to hold the Test. This information
may be made public by GRAND-AM.
3.3.3 Requirements. All Testing must be conducted
using the Official Tire in the delivered condition. A
new DP Entrant is allowed a one-time allocation of
six (6) Tire Sets per Car for initial familiarization
during authorized Testing.
18

3.4 Event Entry. To participate in an Event, an Entrant must
complete, submit with the appropriate fee and have
approved, an Official Entry Form in accordance with the
directions stated on the Official Entry Form. An Official Entry
Form accepted by GRAND-AM shall constitute a contract,
binding the Entrant to take part in the Event unless prevented
by forces beyond his control. If an Entrant enters an Event
without having properly submitted an Official Entry Form, the
Entrant by such actions nevertheless agrees that he is
subject to the Regulations, as well as all statements, releases
and obligations appearing in the Official Entry Form, as if he
had properly submitted a Official Entry Form.
3.4.1 Release. BY SUBMITTING AN OFFICIAL ENTRY
FORM AND/OR TAKING PART IN ANY ACTIVITY
RELATING TO THE EVENT, MEMBER AGREES TO
ABIDE BY THE DECISIONS OF OFFICIALS
RELATING TO THE EVENT OR ANY MATTERS
ARISING OUT OF THE EVENT. MEMBER FURTHER
AGREES TO INSPECT THE RACING AREA TO
ENSURE THAT IT IS IN A SAFE, RACEABLE AND
USABLE CONDITION AND THAT THE MEMBER
VOLUNTARILY ASSUMES THE RISK OF AND HAS
NO CLAIM FOR DAMAGES AGAINST GRAND-AM,
PROMOTER OR THEIR OFFICERS, DIRECTORS,
SHAREHOLDERS, OFFICIALS, AGENTS OR
EMPLOYEES BY REASON OF DAMAGE TO THE
CAR, EQUIPMENT, COMPETITORS OR ANY
OTHER PERSON. MEMBER ASSUMES FULL
RESPONSIBILITY FOR ANY AND ALL INJURIES
SUSTAINED, INCLUDING DEATH AND PROPERTY
DAMAGE, ANYTIME THEY ARE IN THE RACING
AREA OR EN-ROUTE THERETO OR THEREFROM.
MEMBER ACKNOWLEDGES THAT MEMBER’S
SPOUSE AND NEXT-OF-KIN HAVE BEEN ADVISED
THAT MEMBER UNDERSTANDS THE HIGH RISK
OF SERIOUS INJURY OR DEATH WHICH MAY
RESULT FROM PARTICIPATING AND THAT THE
MEMBER SOLELY ASSUMES ALL SUCH RISKS.
3.4.2 Deadline. If an Official Entry Form is not submitted
by the deadline, GRAND-AM in its sole discretion
may accept the Official Entry Form, subject to a late
fee. If submitted after the deadline but before the
first day of registration for the Event, the late fee is
$500. After the first day of registration, the late fee
is $1,000.
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3.4.3 Withdrawal of Entry. An entry may be withdrawn if
notification of the withdrawal is received in writing
by GRAND-AM prior to the start of the first Official
Session for such Event. An Entrant who does not
properly withdraw forfeits all entry fees. 25% of the
entry fee is retained for all withdrawn entries.
3.4.4 Declined Payment. Declined credit cards or
returned checks may result in suspension of
Membership until the debt and any service charges
are paid in full. A service charge of $50 is payable
for each instance. Multiple declined credit cards
and/or returned checks may require future
payments to be made by cash or cashier’s check
only.
3.5 GRAND-AM Officials
3.5.1 Officials. The staff of Officials, whose duty it is to
direct and control the Event may include: Race
Director, Technical Manager, Series Manager, Chief
Scorer and Director of Member Services.
3.5.2 Official Assistants. Officials may have assistants,
also termed “Officials,” to whom any of their duties
may be delegated, including but not limited to the
following:
a. Starter/Flag Marshals. Operating under the
direction of the Race Control to signal to
Competitors during all Sessions.
b. Pit/Paddock/Grid Marshals. Operating under
the Series Manager to enforce the
Regulations of the pits, Paddock and grid.
c. Safety Car Team. Operating under the control
of the Race Director for the coordination of
the Safety Car(s).
3.5.3 Race Director. The Race Director is responsible for
the general conduct of all aspects of competitions
at an Event and ensures that all provisions of the
Regulations are followed.
3.5.4 Technical Manager. The Technical Manager,
reporting to the Race Director, is the authority
enforcing the Technical Regulations. He has the
authority to amend and/or add to the Technical
Regulations, and to make adjustments to Car specifications
effective immediately, if deemed
necessary.
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3.5.5 Series Manager. The Series Manager, reporting to
the Race Director, is the authority in enforcing
Paddock and pit Regulations.
3.5.6 Director of Member Services. The Director of
Member Services, reporting directly to the
Managing Director of Competition, is responsible
for certifying and processing all entries,
Memberships, registrations and credentialing.
3.5.7 Chief Scorer. The Chief Scorer, reporting to the
Race Director, is responsible for managing the official
timing and scoring system(s) at the Event.
3.6 Identification Markings. All participating Cars and
Competitors must display mandatory decals and patches
without exception and/or modification. GRAND-AM reserves
the right to approve final placement for all identification
markings in its sole discretion and such decisions are
Conclusive. Failure to display mandatory decals and patches
as required may result in penalties.
3.6.1 Mandatory Markings
a. Competition Number and Windscreen
Identification. Competition numbers and
windshield banners (if applicable) must be
displayed on the Car in accordance with the
GCR and the applicable Patch and Decal
Diagram as published on GRAND-AM.com.
b. GRAND-AM, Series and Sponsor
Identification. GRAND-AM, Series sponsor
and Series decal and/or patch identification
must be displayed on each Car and uniform as
shown in the applicable patch and Decal
Diagram. GRAND-AM may require an Event
decal and/or patch to be displayed in locations
as specified in the Supplementary
Regulations.
c. Transporter and Pit Equipment
Identification. All transporters and pit equipment
must have the Series identification
displayed as provided and specified by
GRAND-AM on GRAND-AM.com.
3.6.2 Prohibited Marking. All conflicting product or
service identification of any kind must be removed
from Cars and uniforms while participating in an
Event, including but not limited to conflicting series
sanctioning body(ies) and/or fuel or tire companies.
IMSA logos are permitted.
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3.6.3 Advertising. All advertising, including slogans, is
subject to GRAND-AM approval. GRAND-AM may
withhold approval of the content, placement and/or
size of any advertising, decal or identification for
any reason and may prohibit a Member’s participation
in an Event if GRAND-AM determines that any
advertising, sponsorship or similar agreement to
which the Member is or will be a party to, is detrimental
GRAND-AM or the sport of automobile
racing. Such decisions are Conclusive.
SECTION 4 - FLAGS AND COMMUNICATION
4.1 On-Track Communication. The following flags are used to
communicate with Competitors during all Sessions. At night,
or as otherwise required, flags may be illuminated by lights
or replaced by colored lights. Any replacement lights have
the same meaning as the flag defined herein.
4.2 Black
a. Furled. This flag is shown to a Driver for unsportsmanlike
conduct, Discontinue or may be penalized.
b. Motionless. Shown at the Start Line. Driver is using
improper driving conduct and must cease such conduct
immediately.
c. Waived. Summons Driver to pit lane for penalty and/or
consultation with an Official. Driver must comply immediately
or the Race Director may stop timing and scoring
the Car and additional penalties may be imposed.
d. Practice & Qualifying Sessions. Black flags shown at all
flag stations indicate that the Session is stopped. Stop
racing, passing permitted, use caution and proceed
immediately to pit lane.
4.3 Black with Orange Disc. Car has a mechanical problem,
report immediately to the Pit Stall at a reduced speed.
4.4 Black & White Checkered. End of a Session or Race.
4.5 Blue or Blue with Yellow or Orange Diagonal.
• Motionless. Faster Car(s) are approaching or may be in a
blind spot. Use caution, hold line, and do not make
abrupt changes in direction.
• Waived. Permit the approaching Car to pass.
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4.6 Green. Beginning or resumption of a Session/Race and/or
cancellation of a previous flag.
4.7 Red. Only used during a Race.
a. All Sessions/Race. Shown at pit exit to signal that the pit
lane exit is closed.
b. Race Only. Shown at the Start Line with double yellow
flags at the remaining flag stations. The Race has been
stopped. Proceed immediately to pit lane (not Pit Stall) in
Single File and follow the instructions of the Officials. Be
prepared to stop on-track only if so directed. Work or
service must not be performed on the Car until the Race
is restarted, except as directed by Race Control.
4.8 Yellow. Indicates an incident, use caution, no passing, slow
down, be prepared to stop.
a. Motionless. The incident is in the area of the flag station,
proceed past incident in Single File.
b. Waived. The incident is in the area by the flag station,
proceed past incident in Single File, the track may be
partly or wholly blocked and safety personnel and/or
equipment may be on-track.
c. Double Steady. The track is considered yellow at all
points simultaneously; the Safety Car is entering the track
(“Full Course Yellow”).
4.9 Yellow with Red Stripes. The racing surface may be
affected by fluids or debris.
4.10 White.
a. Motionless. There is a slow moving Car or safety vehicle
on-track ahead, possibly in the racing line.
b. Waived at Start Line The start of the final lap of the
Race.
SECTION 5 - PADDOCK, PITS & ROAD
5.1 Paddock. The layout and rules of the Paddock are at the
sole discretion of GRAND-AM and no other entity may give
contrary direction. Teams must park in designated areas or
may be towed at operator’s expense. Support Trailers and/or
motor homes (DP Constructors are exempt) are prohibited in
the Paddock.
5.1.1 Space Allocation. GRAND-AM allocates garages
and paddock space at its sole discretion. The
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following space is typically allocated to an entered
Car and all equipment must fit within such space:
a. Transporter Size. The maximum length of a
truck/trailer is 76ft (excluding tailgate).
b. DP Awning Size: 75ft X 21ft (75ft X 30ft for
two (2) entered DP Cars).
c. GT & GX (Continental: GS & ST) Awning
Size: 75ft X 18ft (75ft X 26ft for two (2) entered
Cars)
5.1.2 Appearance. The appearance of the Series and
teams must always meet a professional standard.
Transporters must be of tasteful design and kept
clean and in good repair in the sole opinion of
GRAND-AM. Defacement, damage or theft of
facility property is strictly prohibited. Competitors
must leave their work areas clean and free of trash
or debris.
5.1.3 Advertisement. Unless specifically authorized by
GRAND-AM, advertising outside of the confines of
the team’s vehicles, uniforms and permitted awning
space, including but not limited to, direct sales and
marketing efforts, sampling, exhibits and surveying
are strictly prohibited.
5.1.4 Business Transactions/Delivery. Unless specifically
authorized by GRAND-AM, only persons with
Partner or Industry Representative Memberships
and credentials are permitted to conduct business
transactions within the Paddock. A business transaction
includes, but is not limited to, unauthorized
solicitation and/or the delivery of parts or services.
Unauthorized third parties engaging in business
transactions within the Paddock shall be escorted
from the Paddock area and Members so engaged
with
5.1.5 Food. Food service at transporters to anyone other
than direct personnel is prohibited. Providing
catered meals, except through track-authorized
vendors, is prohibited.
5.2 Pit Lane. The layout and rules of the pits are at the sole
discretion of GRAND-AM and no other entity may give
contrary direction. GRAND-AM allocates Pit Stalls and
communicates the pit set-up and move-in procedures,
including fueling equipment, timing stands, tires, tools and
pit carts. Fueling rigs must not be set up in pit lane until the
24

day of the Race and must be filled only after inspection and
verification by an Official.
5.2.1 Removal from Pits. During a Race, with the
permission of the Race Director, Cars may be
removed from the pit lane in order to complete work
that is hazardous or inconvenient. The Race
Director may assign an Official to observe the work
performed.
5.2.2 Pit Crew Attire. All Members in the pit area must
be adequately attired with long pants, closed-toe
shoes and sleeved shirts at all times during a
Session. Inappropriate attire is prohibited.
5.2.3 Limitation on Crewmembers. During a pit stop, an
individual is determined to be over pit wall if one
foot is touching the ground on the hot pit side of the
wall. Individuals assisting in the service of the Car
from behind the pit wall must keep both feet on the
ground (or whatever they are standing on), at all
times. During a Race, a maximum of four (4) people
total are permitted over pit wall at any time. During
practice, qualifying, or Testing Sessions, Industry
Representatives are not counted in the four (4)
maximum.
a. GT and GX Cars with single lug hubs have
different sporting Regulations for wheel/tire
changing as specified by Bulletin.
b. A Crewmember or Driver assisting a Driver
entering/exiting the Car and/or the mandatory
fire extinguisher Crewmember during fueling
are the only other individuals permitted over
pit wall during a pit stop. The Driver exiting the
Car, the individual assisting the Driver and/or
the mandatory fire extinguisher Crewmember
must not perform any other function and must
immediately return behind pit wall when
finished.
5.2.4 Pit Lane Traffic. Pit lane is divided into three
sections. They are: the working area of the Pit Stalls
closest to the pit wall, the transition lane and the
high-speed lane farthest from the pit wall.
Competitors are responsible for the safe dispatch
of their Car from the Pit Stall into pit lane. Cars
already in pit lane have the right of way. A Car
entering pit lane must yield to Cars already in pit
lane and not attempt to pass such Cars. A Car must
only enter the high-speed lane without impeding a
25

Car that is already in the high-speed lane. Drivers
are expected to use good judgment and avoid
contact when blending into pit lane traffic. If a Car
passes its Pit Stall it must either be pushed backward
to its Pit Stall or complete another lap and
re-enter pit lane. Use of reverse in pit lane is prohibited.
The start and finish of the pit lane speed limit
is marked by cones and/or lines as described in the
Competitor briefings. The pit lane speed limit is 45
MPH unless otherwise specified in the SR for an
Event.
5.2.5 Pit Lane Exit. During Yellow flag conditions the pit
exit determines the restart order. Only the Car in the
Pit Stall nearest to pit out may accelerate directly
toward pit exit, up to 45 MPH, without merging into
the high speed lane. The correct order is determined
by the sequence of Cars across the pit exit
line as determined by Official(s). Any corrections
required in the order must be made on track prior to
the green flag.
5.2.6 Prohibited.
a. Signaling at pit wall
b. Sitting on, standing on or straddling pit wall
c. Crossing pit lane without permission from
Race Control
d. Servicing the car from behind pit wall.
e. Structure/fixture extending over pit wall
f. Structure taller than 14ft
g. In pit lane, Electric tools, electric powered tow
vehicles, 4-wheeler tug vehicles, golf carts or
other type of vehicle except the Car
h. Car leaving Pit Stall with hoses, tools, etc.
attached or driving into or over Crewmembers,
equipment, tools, airlines, parts, wheels, etc.
i. Interfering with another Car(s) by placing or
permitting equipment or tools outside of the
Pit Stall.
j. Blocking or infringing on fire lanes or designated
safety zones with body parts, air tanks,
tools, tires, etc.
k. Push starting the Car, unless with an Official’s
permission and supervision
l. Fueling when a Crewmember is working under
the Car or the Car is on stands
m. Leakage or spillage of fuel
n. Refilling the fueling rig during a pit stop
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o. Open fuel transfer
p. Adding weight or any other force for the
purpose of increasing fuel flow beyond that of
gravity.
q. Fueling a Car inside permanent garage buildings.
5.2.7 Required
a. When the Car is on-track a minimum of one (1)
Crewmember in the pit box must have radio
communication with the Car and monitoring
the Race Control radio frequency, 461.625
b. Crewmembers and equipment must be behind
pit wall until the Car comes to a complete stop
and must return immediately after the Car
leaves, except to clean up spills
c. All tools and equipment must be stored and
used within the designated Pit Stall
d. GRAND-AM approved stands must be used
when working under the Car
e. Fully charged 10lb ABC fire extinguisher in the
Pit Stall
f. Compressed air tanks must be securely
fastened once the protective cap is removed
g. A protective cage around the regulator and
fittings of the air tank
h. All fueling during a Race must take place in the
Car’s Pit Stall except with permission from the
Race Director.
i. Transferring fuel using a GRAND-AM
approved air or manual pump
j. Any fueling or transfer of fuel requires a
manned, fully charged, 10lb ABC fire extinguisher
k. When fueling, a Crewmember with a fire extinguisher
must be over pit wall
l. During fueling, all Members over pit wall must
wear a full fire resistant suit
m. Fuelers and fire extinguisher Crewmembers
must wear fire resistant gloves, shoes, socks,
balaclava and eye protection during fueling
5.2.8 Permitted
a. A pole mounted signal may be extended over
pit wall to guide the Car to its Pit Stall once it
has entered pit lane.
b. Immediately prior to and during a pit stop,
equipment or tools may be rested on pit wall,
27

so long as they are in the hands of a
Crewmember.
c. The Driver may remain in the Car and the
engine may be running during refueling.
SECTION 6 - CONDUCT OF EVENTS
6.1 Technical Inspection. All Race Equipment is subject to
inspection by GRAND-AM at any time and in any manner
determined by the Officials. Competitors must take whatever
steps are requested to facilitate such inspection. All decisions
regarding the timing and manner of inspection, as well
as what Race Equipment is inspected are Conclusive.
Officials determine whether the Race Equipment meets the
applicable Regulations before, after or during the Event and
except as per 6.1.2 and 6.1.6. Only Race Equipment determined
by GRAND-AM to be eligible is permitted in an Event.
No expressed or implied warranty of safety shall result from
the technical inspection or approval. It is at all times solely
the responsibility of the Entrant to have their Car free from
mechanical defects and in a safe racing condition.
6.1.1 Requirement. Race Equipment must comply with
the Regulations at all times during an Event. If
determined that the Race Equipment does not
comply with the Regulations, the Race Director may
declare the Car ineligible for the Event, disallow the
Competitor’s qualifying times, prohibit the
Competitor’s opportunity to qualify for the Event,
and/or make such other determination as may be
appropriate in the interest of competition. If the
Race Director determines in his sole discretion that
a deficiency is so insubstantial that it does not
provide the Competitor with a competitive advantage
and/or does not adversely affect the orderly
conduct of the Event, the Race Director may permit
the Car to participate in the Event.
6.1.2 Pre-Event Inspection. Each entered Car must be
inspected and approved by the Technical Director
or their delegated assistant(s) prior to participation
in any Official Session at an Event.
6.1.3 Post Session Inspections. At the conclusion of
each qualifying Session and Race, Cars may be
selected for post-Session inspection. Car must not
leave pit lane and work on any Car is prohibited
until directed by Officials. It is incumbent on each
Competitor to determine whether their Car is
28

subject to inspection. An inspection fee of up to
$5,000 may be assessed if an engine requires more
than two (2) hours to cool down.
6.1.4 Procedure. When instructed by an Official to report
to the inspection area, Cars must proceed directly
and without delay. Preparation of the Car for
inspection must be performed in a timely manner as
determined by the Technical Director. Only those
persons directed or approved by GRAND-AM are
admitted to the inspection area.
6.1.5 Impound. The Technical Manager determines what
Race Equipment is impounded at the conclusion of
a Session. GRAND-AM is not responsible for
payment, reimbursement, damage or loss as a
result of such impounding.
6.1.6 Resolution. If a deficiency is found, the Race
Director shall take appropriate actions, including
but not limited to, determining whether a Car is
excluded from the Event, what corrective actions, in
part or in whole, are required to resolve the issue,
and/or impose fines and penalties. If the Car is
permitted to compete, it is prohibited from any
future Event until the deficiency is corrected.
GRAND-AM reserves the right to confiscate any
Race Equipment, without obligation of payment or
reimbursement, which fails to meet the Regulations
or is used or altered in violation of the Regulations.
GRAND-AM reserves the right to require a
Competitor to replace component(s) with a manufacturer’s
original/replacement or other approved
component at any time.
6.1.7 Competitive Analysis. GRAND-AM may determine,
in the interest of competition, that it is
necessary or appropriate to undertake an analysis
of the performance capabilities of Race Equipment.
The Competitor must take whatever steps are
requested by GRAND-AM for this purpose.
GRAND-AM is not responsible for payment, reimbursement,
damage or loss to the Competitor as a
result of such analysis.
6.1.8 Driver Nominations. At least two (2) Drivers must
be nominated for each Race. The number of nominated
Drivers is limited to: three (3) Drivers for
Races less than six (6) hours, four (4) Drivers for
Races six (6) hours and five (5) Drivers for 24 hour
Races. Any Driver not properly nominated auto-
29

matically forfeits all point awards and prize money
for all Drivers and the Car. A Driver may drive two
(2) Cars in the same class, provided he qualifies and
starts in one (1) of the Cars. After the completion of
the registration process, Driver nomination changes
must only be made at the GRAND-AM competition
transporter, up to 30 minutes prior to the start of
any practice Session or may be subject to penalty
or fine. Final Driver changes must only be made at
the GRAND-AM competition transporter no later
than two (2) hours prior to the start of the qualifying
Session. Following such time, Driver championship
points are not awarded to any Driver not properly
nominated. If a Car does not participate in the qualifying
Session, the starting Driver’s name must be
submitted at the GRAND-AM competition transporter
immediately after the completion of the
qualifying Session.
6.2 Qualifying. Only Drivers as designated by the Entrant and in
accordance with the Regulations must qualify the Car. The
Driver who establishes the Car’s qualifying time must start
that Car in the Race, even if the Car fails to qualify but is
permitted to participate in the Race.
6.2.1 Procedure. All Cars must arrive in their Pit Stall
prior to start of the Session on qualifying tires. Work
may be performed on the Car except for adding fuel
and/or changing tires until the Car leaves the Pit Stall
for the first time. Once the Car has left the Pit Stall, it
must not be touched, except by the Driver exiting
the Car. Unless specifically permitted by an Official,
if the Car is otherwise touched once it has left its Pit
Stall during the qualifying Session, it must start from
the rear of the grid. The Race Director may alter the
qualifying procedure(s) at his discretion.
6.2.2 Procedure. All cars must arrive in their Pit Stall
prior to start on qualifying tires. Work may be
performed on the car (except for adding fuel or
changing tires) until the car leaves the Pit Stall for
the 1st time. Once the car has left the Pit Stall it
may not be touched except for the Driver exiting
the car. Unless specifically permitted by an Official,
if the car is touched once it has left its Pit Stall
during the qualifying Session, except for the Driver
exiting the car, it shall start from the rear of the grid.
The Race Director may alter the qualifying procedures
at his discretion.
30

6.2.3 Grid Position. Car/Driver combinations are positioned
on the starting grid in the order of their
qualifying times, with the fastest at the front. When
two or more classes of Cars are part of the same
Race, the classes are separated and lined up in
order by the qualifying times of: DP ahead of GT,
ahead of GX (Continental: GS ahead of ST). Pole
Position (starting position of the fastest qualifier) is
defined as the inside side of the grid relative to the
first numbered corner of the track following the
Starting Line. Car(s) moved to the rear of the grid
are ordered on a first come, first served basis.
a. Ties. In the event that two Drivers set an identical
time, the higher grid position shall be
awarded to the Driver that set it first.
b. Driver Change. If any Driver other than the
qualifying Driver will start the Race, the Entrant
must give written notice to the Race Director
at the GRAND-AM competition transporter no
later than two (2) hours prior to the start of the
Race and the Car must start from the rear of
the grid.
c. Engine Change. For any Car requiring an
engine change following the qualifying
Session, the Entrant must give written notice
to the Race Director at the GRAND-AM
competition transporter no later than two (2)
hours prior to the start of the Race. For Races
six (6) hours or less, such Car(s) must start
from the rear of the grid.
6.2.3 Black Flag. If a Car causes a black flag all situation
during a qualifying Session, its fastest lap is
deleted, it must exit the track immediately and must
not return for the remainder of the qualifying
Session.
6.2.4 Qualifying Abandonment. In the event that the
Race Director determines that qualifying must be
abandoned, the grid order shall be established by
other means.
6.2.5 Other Means. Should other means be required to
set the grid, each class shall be gridded together in
the order DP, GT, GX. Within each class, the Cars
shall be ordered by the following priority.
6.2.5.1 The Driver in each Car with the most
Driver Championship points in that
same class for the current season-
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shall be gridded first, with other Cars
following in descending order.
Tiebreaker per GRAND-AM Article
9.7 then 6.2.5.2
6.2.5.2 Should none of the Drivers in a Car
have Driver Championship points in
that same class for the current
season, the Car shall be gridded by
the Driver in the Car with the most
Driver Championship points in that
same class from the previous
season. Already tie broken, then
GRAND-AM Article 6.2.5.3
6.2.5.3 Should none of the Drivers in a Car
have Driver Championship points in
that same class for the current or
previous season, the Car shall be
gridded in the order of Driver
Championship pointed earned in any
class from the previous season.
Tiebreaker by class order per
GRAND-AM Article 6.2.5, then 6.2.5.4
6.2.5.4 Should none of the Drivers in a Car
have Driver Championship points for
the current or previous season, the
Car shall be gridded by its performance
in any preceding official
Session(s) (combined) at the Event
but behind Cars with Drivers having
Championship points per GRAND-
AM Article 6.2.5.1 through 6.2.5.2.
Tiebreaker per GRAND-AM Article
6.2.5.5.
6.2.5.5 Should any one or all of these individual
circumstances not be
applicable to a particular car(s), the
Race Director may place the Car(s)
on the grid at his discretion.
6.3 Fan Walk. Pit lane opens approximately 60 minutes prior to
the scheduled start of the Race for the fan walk. Competitors
must drive or push the Car to its Pit Stall at the time stated
in the Driver meeting. Teams may be penalized for not participating
in the Fan Walk.
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6.4 Pre-Race.
6.4.1 Once the Car arrives in the Pit Stall, teams may
service the Car. Fueling is prohibited from the time
the Car is in the Pit Stall until the Car passes the
Start Line for the first time during the Race.
6.4.2 Exploratory Laps. Upon conclusion of the fan
walk, the pit exit opens for five (5) minutes and all
Cars must complete at least one (1) exploratory lap
or forfeit their grid position and must start the Race
from the pit exit. After completing a minimum of one
(1) exploratory lap, Driver may elect to: (i) Drive
through pit lane with caution and undertake another
exploratory lap, provided the pit exit is open; (ii)
Take their grid position; or (iii) Return to their Pit
Stall. A Car remaining in its Pit Stall after the pit exit
is closed forfeits its grid position and must start the
Race from the pit exit, in the order of arrival. The
Safety Car takes up position at the front of the grid
during this time.
6.4.3 Starting Grid. After the pit exit is closed, Cars ontrack
may proceed to their grid position or Pit Stall.
Cars returning to their Pit Stall forfeit their grid position
and must start the Race from pit exit, in the
order of arrival. Once in the grid position or pit lane,
engines must be turned off until the command to
start the engines is given.
6.4.4 Formation Laps. Formation laps are led by a
Safety Car. There are two (2) formation laps, unless
otherwise determined by the Race Director.
6.4.4 Unable to Start on Grid. Cars not participating in
the formation laps, Cars unable to maintain the
speed of the Safety Car and/or Cars that fall out of
position during the formation laps, must relinquish
their position. Any Car unable to leave the grid with
all running Cars must start from the pit exit, in the
order of arrival. If a Car cannot maintain the speed
of the Safety Car and is repositioned at the rear of
the field or is starting from pit lane, the Car’s original
grid position is filled by the Car in the column
immediately behind it, with all subsequent Cars
behind this Car, moving up from behind also.
6.5 Race Start and Restart Procedures
6.5.1 Scoring. Timing and scoring begins when the
leader crosses the Start Line after the conclusion of
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the last formation lap, regardless of the display of
the starting flag.
6.5.2 Race Start. Cars must not pass the Safety Car until
it has exited the track. The pole sitter has earned
the right to start the Race. All Cars must maintain
the speed of the Safety Car until the pole sitter
reaches the “start zone”. The “start zone” is indicated
by cones and/or stripes on both sides of the
track. The pole sitter may accelerate upon reaching
the “start zone” and the green flag shall be
displayed while the pole sitter is within the “start
zone”. Cars must not improve, or begin to improve
their position (pulling out of line is improving position)
and must remain in order within their starting
column until they individually cross the Start Line
after display of the green flag. Cars must not pass
or begin to initiate a pass prior to that Car crossing
the Start Line after the green flag is displayed.
Gamesmanship, brake checking or manipulation of
the pace or procedure is prohibited. Any violation of
the Race Start regulations may be penalized for
False Start. A missed shift, wheel spin or another
unavoidable situation on the start shall be judged
by the Officials. Such judgment is Conclusive.
6.5.3 Wave Off. If it is required to abandon the start and
to continue for an additional lap(s) at Safety Car
speed, the starter shall wave a yellow flag prior to
the pole sitter arriving at the “start zone”. The pole
sitter and all Cars must then complete another lap
at Safety Car speed in anticipation of the Start
procedure as described in Article 6.5.2.
6.5.4 Starting from Pit Exit. Cars at pit exit may start the
Race behind the field when directed by the Official
at pit exit.
6.6 Race Interruption (Red Flag)
6.6.1 Restart. If the Race is stopped prior to the
completion of one (1) lap, the Race Director may
order a complete restart according to the starting
positions. After the completion of one (1) lap, Cars
must line up Single File in the overall order in which
the Cars completed the last scored lap.
6.6.2 No Restart. A Race that is interrupted after the
completion of 50% or more of the Race and is not
restarted is scored as of the last completed green
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lap. A Race interrupted and not restarted in duration
of less than 50% may be declared incomplete.
If declared incomplete, GRAND-AM is not obligated
to distribute awards and/or points. GRAND-AM
may readjust and/or account for point eligibility
under this circumstance in order to maintain
consistent Driver team pairings and point totals at
its sole discretion.
6.7 Mandatory Pit Stops. In Races where a pit stop is required
prior to a specific time, this requirement is fulfilled on pit
stops occurring after the Car has crossed the Start Line for
the first time. The time for mandatory pit stops is measured
at the Commitment Line.
6.8 Drive Time Restrictions. A Driver must not drive for more
than three and one half (3½) hours consecutively. After
driving a minimum of three and one half (3½) consecutive
hours, a Driver must take a minimum one (1) hour rest prior
to returning to competition. The total maximum driving time
permitted during a 6-hour Race is five (5) hours. For Races
longer than six (6) hours, driving time is limited to a maximum
of 14 hours total.
6.9 Race Completion. The Race officially ends when the overall
leader crosses the Finish Line at the display of the checkered
flag. Finishing positions are determined according to the
number of laps completed, regardless of whether the Car is
running at the finish. Cars completing the same number of
laps are ranked according to the time taken to complete
those laps. The finishing position of a Car that does not
complete one (1) lap is determined by its starting position in
relation to any other Car(s) that do not complete one (1) lap.
6.10 On-Track Rules. Only the Driver is permitted to refuel or
service a Car behind the first line of protection and only with
the approval of the Race Director. Outside assistance is
prohibited. A Driver must not push his Car; however, a
Course Marshal may push or tow a disabled Car to a safe
location without penalty to the Competitor. The track is
defined on both sides by painted verge lines or the edge of
the pavement. A Car four wheels off track must re-enter
safely, gain no advantage and must not interfere with,
contact or cause a Car on track to deviate from its line.
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6.11 Safety Car.
6.11.1 The Safety Car may be brought into operation to
neutralize the Race at the discretion of the Race
Director, who may dispatch the Safety Car at any
time during an Event in order to correct a hazardous
situation. The primary purpose of the Safety Car is
to create a traffic interval on the track so that the
Safety Team or marshals may handle emergencies
more safely and quickly.
6.11.2 Drivers are warned that a Safety Car will be used
when Race Control announces: Full Course Yellow,
Pits are closed. Simultaneously, the Starter and all
corner stations display two motionless yellow flags,
the Car’s “Safety Light System” is illuminated and,
when the GRAND-AM Yellow Condition System is
in use, Drivers may also be warned by yellow
flashing or motionless lights. Overtaking is prohibited
on the track. When possible, the Safety Car will
enter the course ahead of the overall leader, who
must slow down to facilitate this. All competitors
must then follow the Safety Car in Single File.
6.11.3 Cars must catch up with the field as quickly as
possible consistent with safety. It is prohibited for a
Driver to pass the Safety Car unless specifically
instructed to do so.
6.11.4 Failure of the overall leader to slow down and take
up position behind the Safety Car may result in a
One (1) lap or other penalty.
6.11.5 The Race Director may modify this procedure, if at
his sole discretion, he believes conditions exist that
warrant such modification, including not picking up
the overall race leader at the beginning of the intervention
if immediate dispatching is deemed critical.
If the Safety Car does not pick up the overall leader
at the beginning of the intervention, the Safety Car
will wave by Cars between the Safety Car and the
overall leader, as directed by Race Control.
6.12 Standard Full Course Yellow
6.13 Pass-Around and Pit Stops:
6.13.1 The pit entrance is closed from the beginning of the
Safety Car intervention until the Safety Car has
picked up the overall leader and main field and any
Pass-Around has been completed.
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6.13.2 If deemed appropriate, the Race Director will
authorize the Pass-Around for any Car that has
their class leader behind them in the order circulating
behind the Safety Car.
6.13.3 Any Car(s) participating in the Pass-Around must,
throughout the procedure, remain in Single File, in
the order initially established behind the Safety Car,
unless otherwise instructed by Race Control.
6.13.4 Cars participating in the Pass-Around must, only
when directed, overtake the Safety Car on the right,
in Single File and circulate as quickly as possible
consistent with safety to rejoin the field at the rear
of the Car(s) remaining behind the Safety Car.
Penalty for Pass-Around when ineligible: Stop and
Hold for time equal to two (2) Race laps.
6.13.5. The Race Director will instruct officials to re-open
the pits.
6.13.6.
a. Only DP Cars are permitted to pit on the first
lap after the pits are declared open.
(Continental: Only GS Cars.)
b. Only GT and GX Cars are permitted to pit on
the subsequent lap. (Continental: Only ST
Cars.)
c. After Safety Car and Cars that have not pitted
are past the Start Line, Race Control shall
wave by any DP, GT and GX Cars behind the
Safety Car that were not on the lead lap at the
time of the Full Course Yellow and that stayed
out behind the Safety Car that are ahead of
Cars in their class in the order behind the
Safety Car that were on the lead lap as determined
at the time of the Full Course Yellow.
Waved By Cars may pit. (Continental: GS and
ST.)
d. Any Car(s) may pit on subsequent laps
following the “Class Split”.
e. A Car disabled as the result of an incident,
running out of fuel, flat tire or similar mechanical
handicap, in the sole opinion of the Race
Director, may enter a closed pit (or not open
for that class) and receive assistance only to
remedy the immediate concern. (Penalty is
Stop plus 20 seconds under green flag conditions.)
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f. Any Car not disabled, that enters while the pits
are closed (or not open for that class) and
receives assistance may be penalized. (Stop +
60)
g. The class-specific separation for pit stops is
not in effect during the last 45 minutes of the
Race.
6.14 Wave-By and End of Operation:
6.14.1 If there are Cars between the Safety Car and the
first class leader in line, the Race Director will
instruct the Wave-By of any Cars that are between
the Safety Car and that first class leader.
6.14.2 If during the process, that class leader enters the
pits, the Safety Car will pick up the Car which
remains on the track that was the most immediately/directly
behind that class leader at the time
the Wave-By was requested.
6.14.3 Waved By Car(s) that then pit are held at the pit exit
until the main field has passed the pit exit.
6.14.4 Class Split. In a mixed-class Event, immediately
following the Wave-By (if performed), or after the
pits are open for DP, GT and GX Cars that stayed
out (if not performed), Race Control shall conduct a
“Class Split”. Cars in the GT and GX classes must
remain in running order, move left, and permit
eligible DP Cars to move right and pass any GT and
GX Cars in Single File. For the restart, the order
shall be: DP class leader ahead of DP main field,
followed by the combined GT/GX main field.
(Continental: ST Cars move left to permit GS Cars
to move up. Restart order is: GS class leader ahead
of GS main field followed by the ST main field.)
6.15 Restart:
6.15.1 When the Race Director has determined that the
course is clear and acceptable for the continuation
of competition, he will instruct the Safety Car to
extinguish its flashing lights, the Car’s “Safety Light
System” is turned off and where in use, the Grand-
Am Yellow Condition System lights are also
extinguished, indicating this is the final lap of this
Safety Car intervention. The Safety Car then exits
the track at the location specified by the Race
Director.
6.15.2 The Car immediately behind the Safety Car prior to
the restart must maintain the previous slow speed
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of the Safety Car until the place on the track
described at the Driver briefing, at which time
acceleration may begin. When the green flag is
displayed, racing – overtaking – recommences.
Manipulation of this pace is considered an infraction
and may be penalized.
6.16 Short Full Course Yellow
6.16.1 A short Full Course Yellow procedure is used if a Full
Course Yellow occurs within 45 minutes of the
scheduled end of the Race and/or within 15 minutes
of a previous green flag (including the Race start).
6.17 Pass-Around and Pit Stops:
6.17.1 The pit entrance is closed from the beginning of the
Safety Car intervention until the Safety Car has
picked up the overall leader and main field and any
Pass-Around has been completed.
6.17.2 If deemed appropriate, the Race Director will
authorize the Pass-Around for any Car that has
their class leader behind them in the order circulating
behind the Safety Car.
6.17.3 Any Car(s) participating in the Pass-Around must,
throughout the procedure, remain in Single File, in
the order initially established behind the Safety Car
unless otherwise instructed by Race Control.
6.17.4 Cars participating in the Pass-Around must, only
when directed, overtake the Safety Car on the right,
in Single File and circulate as quickly as possible
consistent with safety to rejoin the field at the rear
of the Car(s) remaining behind the Safety Car.
Penalty for Pass-Around when ineligible: Stop and
Hold for time equal to two (2) Race laps.
6.17.5. The Race Director will instruct officials to re-open
the pits.
6.17.6.
a. All Cars are permitted to pit on the first lap
after the pits are declared open.
b. Any Cars are permitted to pit on laps after the
first opportunity to pit is concluded.
c. A Car disabled as the result of an incident,
running out of fuel, flat tire or similar mechanical
handicap, in the sole opinion of the Race
Director, may enter a closed pit and receive
assistance only to remedy the immediate
concern. (Penalty is Stop plus 20 seconds
under green flag conditions.)
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d. Any Car not disabled, that enters while the pits
are closed and receives assistance may be
penalized. (Stop + 60)
6.18 Wave-By and End of Operation:
6.18.1 If there are Cars between the Safety Car and the
first class leader in line, the Race Director will
instruct the Wave-By of any Cars that are between
the Safety Car and the first class leader.
6.18.2 If during the process, that class leader enters the
pits, the Safety Car will pick up the Car which
remains on the track that was the most immediately/directly
behind that class leader at the time
the Wave-By was requested.
6.18.3 Waved By Car(s) that then pit are held at the pit exit
until the main field has passed the pit exit.
6.18.4 Class Split. In a mixed-class Event, immediately
following the Wave-By (if performed), or after the
pits are open for Any Cars (if not performed), Race
Control shall conduct a “Class Split”. Cars in the
GT and GX classes must move left and permit
eligible DP Cars to move right and pass any GT and
GX Cars in Single File. For the restart, the order
shall be: DP class leader ahead of DP main field,
followed by the combined GT/GX main field.
(Continental: GS class leader ahead of GS main
field followed by the ST main field.)
6.19 Extended Full Course Yellow:
6.19.1 In situations where a Full Course Yellow lasts for a
long period (approximately 60 minutes or more), the
Race Director may call another “Wave-By” and/or
“Class Split”, prior to restarting the Race.
6.19.2 In preparation for a return to racing, the Race
Director will order the pit entry closed.
6.19.3 After the Safety Car has the field under control, the
Race Director will instruct officials to re-open the
pits.
a. A Car disabled as the result of an incident,
running out of fuel, flat tire or similar mechanical
handicap, in the sole opinion of the Race
Director, may enter a closed pit and receive
assistance only to remedy the immediate
concern. (Penalty is Stop plus 20 seconds
under green flag conditions.)
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. Any Car not disabled, that enters while the pits
are closed and receives assistance may
receive a penalty. (Stop + 60)
6.20 Wave-By and End of Operation:
6.20.1 If the Race Director deems it appropriate, he will
instruct the Wave-By of any Cars that are between
the Safety Car and the first class leader.
6.20.2 If during the process, that class leader enters the
pits, the Safety Car will pick up the Car which
remains on the track that was the most immediately/directly
behind that class leader at the time
the Wave-By was requested.
6.20.3 Waved By Car(s) that then pit are held at the pit exit
until the main field has passed the pit exit.
6.20.4 Class Split. In a mixed-class Event, immediately
following the Wave-By (if performed), or after the
pits are open for Any Cars (if not performed), Race
Control shall conduct a “Class Split”. Cars in the
GT and GX classes must move left and permit
eligible DP Cars to move right and pass any GT and
GX Cars in Single File. For the restart, the order
shall be: DP class leader ahead of DP main field,
followed by the combined GT/GX main field.
(Continental: GS class leader ahead of GS main
field followed by the ST main field.)
6.20.5 Car(s) in any class that are waved by to the first
class leader in preparation for the Class Split and
restart may pit but in any case, must not participate
in the Class Split.
6.21 Competition Penalties. Officials may impose a time or lap
penalty during a Race that include but are not limited to,
being called to the Pit Stall, being held in the Pit Stall for a
period of time or number of laps, or adding time to the Car’s
finishing time at the end of the Race. These penalties are
Conclusive.
6.20.1 Procedure. Penalties imposed under Full Course
Yellow are at double (2 times) the listed time, unless
specifically required to be imposed under a green
flag. The Car must receive the green flag at the
Start Line and then enter the pit lane for the penalty
to qualify as being served under a green flag.
Penalties must be served within four (4) laps of
issuance. The following standard penalties may be
imposed during a Session:
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6.20.2 Hold Car in Pit Stall for 10 seconds for:
a. Crewmember/equipment over pit wall before
the Car stops
b. Crewmember over pit wall with improper attire
(ejected from pit lane until properly attired)
c. Fueler with exposed facial hair or without eye
protection
d. Fire extinguisher improperly manned
6.21.3 Hold Car in Pit Stall for 20 seconds for:
a. Exceed max number of Crewmembers over pit
wall
b. Exceed max number of Crewmembers
working on Car
6.21.4 Hold Car in Pit Stall for 60 seconds for:
a. Working under Car during fueling or without
approved stands
b. Improper/inoperative shutoff valve
6.21.5 Stop & Go (under green flag) for:
a. False Start/Restart
6.21.6 Stop & Go+20 seconds (under green flag) for:
a. Pitting while pits are closed or not open for
your class during a Full Course Yellow
6.21.7 Stop & Go+30 seconds (under green flag) for:
a. Leaving Pit Stall with equipment, hose, tools
attached
b. Hitting or running over Personnel/Race
Equipment
6.21.8 Stop & Go+60 seconds (under green flag) for:
a. Taking more than emergency service while pits
are closed/not open for Car class during Full
Course Yellow
b. Not holding at pit exit or other Full Course
Yellow violation
6.21.9 Drive through Pit Lane for:
a. Exceeding pit lane speed limit
b. Short-cutting the track
SECTION 7 - REQUIRED EQUIPMENT.
7.1 Fueling Rig. All fueling during a Race must be done only in
the Car’s Pit Stall using a Spec Fueling Rig, CV Products part
number: CVT FR 2005GA, in accordance with the
Regulations except per 6.10. The fueling rig must be used as
designed and delivered with the exception of items permitted
in 7.1.7. During practice Sessions, a Car may be fueled in its
42

Pit Stall from an approved vented container no larger than six
(6) U.S. gallons capacity and equipped with an approved drybreak.
7.1.1 Fuel Storage. Competitors are permitted to store
up to an additional 55 gallons of fuel in the pit box.
7.1.2 System. The fueling rig must have a restrictor
attaching the 1.5” diameter fuel delivery hose to the
specified red-head dry-break. All fuel must pass
through the restrictor. Fuel delivery hose length
must be a minimum of 10 ft.
7.1.3 Restrictor. DP requires a 1.1” black restrictor. GT:
see Specific Car Regulations. GX: see Specific Car
Regulations. (Continental: GS and ST require a blue
1” restrictor.)
7.1.4 Dry-Break. The dry-break must be the unmodified
ATL red-head, part number RE105, unless otherwise
authorized inthe Specific Car Regulations or
as below:
a. DP must use a dual probe fuel and vent drybreak
coupler system.
b. GT must use a dual probe fuel and vent drybreak
coupler system.
c. GX must use a dual probe fuel and vent drybreak
coupler system.
d. (Continental: GS and ST may use a single drybreak
with discriminator valve or a double
dry-break coupler system and may use
#PP125DVR10 dual dry-break.)
7.1.5 Height. The maximum overall height of 6 ft.
(excluding the vent) is measured from the pit lane
surface of the Pit Stall. The fueling rig must have
adjustable legs in order to compensate for various
pavement levels. No parts of the fueling rig or its
fitting or hoses are permitted to protrude past the
front plane of the pit wall except during refueling of
the Car.
7.1.6 Shutoff Valve. The shutoff valve must operate on
the “dead man” principle and must immediately
stop the flow of fuel into the fueling hose when
unmanned. The shutoff valve must not be fitted with
any device permitting or forcing it to stay in the
open position. Bracing to the legs and/or tank
brackets of the fueling rig must support the shutoff
valve assembly.
7.1.7 Permitted
a. Additional sight tubes
43

. A discriminator valve on the fill cap
c. A second shutoff valve in the vent stack above
the cast vent line fitting.
d. The 1.5” diameter hose coupler attaching the
fuel delivery hose to the fueling rig may be
bored to a maximum diameter of 1.300”.
e. A 90 degree supply elbow fitting, part number
CVT FR90.
f. A 45 degree supply elbow fitting, part number
CVT FR45.
g. The IMSA fuel tank. (Must use all GRAND-AM
required fittings, shutoff valve and restrictors.)
7.2 Driver ID Transmitters. Each Car must be fitted (left front
wheel well) with a GRAND-AM specified Driver I.D. AMB
transmitter and wiring harness (“Transmitter”) during all
Sessions. The one-time cost for a Transmitter from GRAND-
AM is $1,500. Entrant must record and confirm the
Transmitter number during technical inspection. Improper
use, non-function or loss of the Transmitter requires immediate
repair or replacement. At GRAND-AM’s request, the
Car must also use a second transmitter.
7.3 Safety Light System. Each Car must be fitted with a
GRAND-AM specified light, antenna and mounting bracket
(“Safety Light System”). Entrants are provided a Safety Light
System and wiring instructions upon completion of Car
registration at no cost. Entrant must supply additional wiring
per the installation instructions. The yellow warning light
must be prominently located on the Car’s dash in clear line
of sight for the Driver. The activating receiver is provided by
GRAND-AM during technical inspection at each Event and
remains the property of GRAND-AM. Entrants are required to
surrender the receiver when required by GRAND-AM. A lost
or damaged receiver is subject to a $2,000 fee.
SECTION 8 - DISCIPLINARY ACTION, PROTEST & APPEALS
8.1 Penalty. Any Member that violates any Regulation or
attempts to bribe anyone involved with an Event or is party
to fraud or any act detrimental to GRAND-AM or the sport of
automobile racing, may be penalized as determined by
GRAND-AM in its sole discretion. The authority to assess
penalties is not limited to violations occurring during an
Event.
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8.1.1 Issuance of Penalty. The Race Director may
impose any penalty deemed appropriate, including
but not limited to, reprimand, monetary fine, loss of
points, loss of prize money, loss of time, loss of
lap(s), exclusion, disqualification, suspension or
revocation of Membership or competition privileges,
probation, expulsion from an Event, or any
combinations thereof. GRAND-AM reserves the
right to withhold purse and/or prize money.
8.1.2 Monetary Fines. All monetary fines must be paid
within one (1) week from notice of the penalty. A
Member must not participate in an Event until all
fines are paid in full. GRAND-AM may withhold or
deduct prize money due to the Member until all
fines are paid in full.
8.2 General Administration
8.2.1 Final and Not Subject to Protest or Appeal. The
following matters and all actions, decisions, rulings
and/orpenalties made or taken with respect to such
matters are Conclusive.
a. Any action or decision (or alleged inaction) by
GRAND-AM arising out of an Event except
those directly related to a Car’s technical
compliance;
b. Any Race Procedure penalty
c. Any decision with respect to timing and
scoring
d. A decision as to whether a matter is or is not
Conclusive
e. Revocation of credentials or parking privileges
at an Event
8.2.2 Publication. GRAND-AM reserves the right to
publicize penalties, protests, appeals and/or the
decisions thereof and the persons, or entity referred
to in the publication shall have no right of action
against GRAND-AM.
8.2.3 Bad Faith. If GRAND-AM determines that the
submitter of a protest and/or appeal has acted in
bad faith, the Entrant shall be in violation of the
Regulations and may be penalized.
8.3 Timing and Scoring Results.
8.3.1 Results. Results remain unofficial until 24 hours
following the conclusion of the Event.
45

8.4 Protest. The right to protest rests only with an Entrant taking
part in the Event in question. An Entrant may protest a decision,
act or omission of GRAND-AM, an Official, Competitor
or other person connected with the Event, considered to be
in violation of the Regulations and causing a significant unfair
competitive advantage.
8.4.1 Notice of Protest. The protest must be delivered to
the Race Director, in writing, stating the specific
Regulation alleged to have been violated and the
complete details of the alleged violation. The
protest must be signed by the Entrant making the
protest and accompanied by the protest fee of
$2,500 payable to GRAND-AM. The protest fee
may be retained or returned, in whole or part, at the
discretion of GRAND-AM. Time limits for protests
are as follows and the Race Director may, at his
sole discretion, extend any protest time limit:
a. A protest against Race Equipment must be
received prior to the scheduled close of pre-
Race technical inspection for the relevant Event.
b. A protest against a General Sporting
Regulation violation during a Session must be
received within 30 minutes after the end of the
applicable Session.
8.4.2 Against a Car. If a protest is made against a Car’s
eligibility, the Entrant must provide, in addition to
the protest fee, an additional protest inspection fee
of $3,000. The protest inspection fee is returned
only if the protest is found to be valid. Any Entrant
who does not permit inspection of their Car is
subject to immediate disqualification from the
Event.
8.4.3 Review. The Race Director shall deliver the Protest
fee and materials to the Supervisory Officials. The
Supervisory Officials first determine whether the
matter in question is subject to protest under the
Regulations. Such decisions are Conclusive.
8.4.4 Hearing. If the matter is found to be protestable,
the Supervisory Officials shall identify the parties
involved and facilitate the timely procurement of all
documents, data and/or other evidence deemed
necessary at their discretion to render a fair
decision. The Supervisory Officials shall endeavor
to hear the protest as soon as practical and may act
within a quorum of three (3). A Supervisory Officials
factually involved shall recuse themselves from
46

participation in the protest hearing. The Supervisory
Officials shall establish the most appropriate procedure
for hearing the protest and inform all parties of
such procedure prior to the hearing. The
Supervisory Officials, or parties to the protest at
their own expense, may call witnesses or present
evidence, but the protestant must present their own
case and must not be represented at the hearing by
another individual or attorney. Other persons must
not be present at the protest hearing except those
permitted by the Supervisory Officials. Failure of the
protestant to appear as requested or otherwise fail
to respond to any investigatory request of the
Supervisory Officials may result in the dismissal of
the protest with prejudice.
8.4.5 Decision. In deciding the outcome, the Supervisory
Officials may take any action deemed appropriate
in the interest of GRAND-AM or the sport of automobile
racing including but not limited to, revising
the results, imposing penalties, or taking no action
at all, but under no circumstances shall they order
an Event or any portion thereof to be rerun. A copy
of the decision is sent to all parties to the appeal
after the decision becomes final. All parties
concerned are bound by the decision, subject only
to the rights of appeal as provided in the
Regulations.
8.4.6 Withholding Awards. With the exception of post-
Race podium ceremonies, the distribution of
awards occurs after the period for receiving
protests has elapsed. When a protest that would
affect distribution of awards has been lodged,
distribution of any awards affected by the protest
are withheld and the results provisional until the
protest has been settled.
8.5 Appeal. Provided the applicable protest procedures have
been properly exercised, the Entrant has the right to appeal
any decision or penalty issued against that Entrant, except
as otherwise prohibited.
8.5.1 Notice of Appeal. Notice of intent to appeal must
be delivered to the Race Director within one (1) hour
from notice of the protest decision. Formal written
notice of an appeal must be delivered to the
President at Headquarters no later than 5:00 pm
eastern, the second business day after the notice of
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the protest decision or penalty. The written notice of
appeal, signed by the appellant, specifying the
grounds for appeal, must include the appeal fee of
$5,000 payable to GRAND-AM, half of which is
retained by GRAND-AM regardless of any decision.
8.5.2 Review. The President, in his sole discretion, determines
whether any appeal is reasonable, complies
with the Regulations and if it shall be heard by the
Supervisory Officials. Such decisions are Conclusive.
8.5.3 Hearing. If the matter is permitted, the Supervisory
Officials shall endeavor to hear the appeal as soon
as practical and may act within a quorum of three
(3). A Supervisory Official factually involved shall
recuse themselves from participation in the appeal
process. The Supervisory Officials shall establish
the most appropriate procedure for hearing the
appeal and inform all parties of such procedure
prior to the hearing. The Supervisory Officials, or
parties to the appeal at their own expense, may call
witnesses or present evidence, but appellant must
present their own case and must not be represented
at the hearing by another individual or
attorney. Other persons must not be present at the
appeal hearing except those permitted by the
Supervisory Officials. Failure of the appellant to
appear as requested or otherwise fail to respond to
any investigatory request of the Supervisory
Officials may result in the dismissal of the appeal
with prejudice.
8.5.4 Decision. In deciding the outcome, Supervisory
Officials may take any action they deem appropriate
in the interest of GRAND-AM or the sport of
automobile racing including, but not limited to,
revising the results, imposing penalties, or taking no
action at all but under no circumstances shall they
order an Event or any portion thereof to be rerun. A
majority of the Supervisory Officials must agree to
modify the decision of a protest. A copy of the decision
is sent to all parties to the appeal after the
decision becomes final. All parties concerned are
bound by the decision as provided in the
Regulations.
8.6 Appeal to the Chief Appellate Officer. Provided that the
applicable protest and appeal procedures have been prop-
48

erly exercised, Entrant shall have the right to further appeal
to the Chief Appellate Officer.
8.6.1 Notice to Chief Appellate Officer. Notice of intent
to appeal to the Chief Appellate Officer must be
delivered to the President within one (1) hour of the
receipt of the Supervisory Official’s appeal decision.
Formal written notice must be delivered to the Chief
Appellate Officer at Headquarters no later than
5:00pm eastern the third business day after notice
of the decision of the Supervisory Officials. The
written notice, signed by the appellant, stating the
grounds for appeal, must include the appeal fee of
$5,000 payable to GRAND-AM, which is retained by
GRAND-AM regardless of any decision.
8.6.2 Disposition of Appeal. The Chief Appellate Officer
may choose to hear or not to hear an appeal, or he
may choose to review the written documentation
and base his decision on the evidence presented at
the initial appeal. The Chief Appellate Officer’s decision
as to whether or not an appeal is heard is
Conclusive. All parties are informed of the time and
place of a Chief Appellate Officer’s hearing. The
Chief Appellate Officer, or appellant at their own
expense, may call witnesses or present evidence,
but the appellant must present their own case and
must not be represented at the Chief Appellant
Officer’s hearing by another individual or attorney.
Other persons must not be present at the Chief
Appellant Officer’s hearing except those permitted
by the Chief Appellate Officer. Failure of the appellant
to appear when requested or respond to any
investigatory request of the Chief Appellate Officer
may result in the dismissal of the appeal to the
Chief Appellant Officer with prejudice.
8.6.3 Decision. The Chief Appellate Officer may vacate,
assess additional, decrease or increase penalties
previously imposed and may vacate, modify or
uphold protest and initial appeal decisions, but,
under no circumstances, order an Event or any part
thereof to be re-run. A copy of the final decision is
sent to all parties of the appeal to the Chief
Appellate Officer after the decision becomes final.
All parties concerned are bound by the decision
given, as provided in the Regulations.
49

SECTION 9 - PRIZES, POINT FUNDS AND AWARDS
9.1 Sole Authority. GRAND-AM is the sole authority for the
awarding of Event prizes, points and awards and the
awarding of all Series championships. Notwithstanding that
a specific Event may be listed on the FIA calendar or may be
part of an Event counting towards an FIA championship,
GRAND-AM retains sole authority to settle any dispute that
may arise during an Event, including any and all disputes that
may affect individual or Series awards, in accordance with
the Regulations.
9.2 Event Prizes. Prizes and awards for all Events are distributed
by GRAND-AM. Members agree to abide by decisions
of GRAND-AM with respect to the establishment and distribution
of such prizes and awards.
9.3 Point Fund(s). GRAND-AM may establish a point fund(s).
9.3.1 To be eligible for the Rolex Series season-end point
fund awards, the Entrant’s Car, as identified by the
Car number, must finish in the top 10 overall of the
Team Championship point standings for the current
season and Entrant must compete with such Car,
as per the Regulations, in that class, in every
scheduled Race for the current season.
9.4 Championship. GRAND-AM is the sole and final authority
for the development, maintenance and distribution of
GRAND-AM championship point funds, the awarding of
GRAND-AM championship points and the naming of manufacturer
or Series-sponsored GRAND-AM champions.
9.4.1 Point Awards. GRAND-AM awards points in each
class by finishing position as follows:
1st - 35 points
2nd - 32 points
3rd - 30 points
4th - 28 points
5th - 26 points
6th - 25 points
7th - 24 points
8th - 23 points
9th - 22 points
10th - 21 points
11th - 20 points
12th - 19 points
13th - 18 points
14th - 17 points
15th - 16 points
16th - 15 points
17th- 14 points
18th - 13 points
19th - 12 points
20th - 11 points
21th - 10 points
22th - 9 points
23th - 8 points
24th - 7 points
25th - 6 points
26th - 5 points
27th - 4 points
28th - 3 points
29th - 2 points
30th - 1 point
50

At the Rolex 24 Race, points are awarded as above except
all finishers from 15th position down receive 15th place
points.
9.5 GRAND-AM Driver Championships
9.5.1 Driver Point Awards Eligibility. Drivers must hold
a GRAND-AM Membership. Drivers must be properly
nominated. For each Race, a Driver must drive
a minimum of 30 minutes of on-track drive-time,
with a minimum of one (1) lap under green flag
conditions in a Race. At least two (2) Drivers must
drive the Car under green flag conditions in each
Race for any Driver in the Car to be eligible for
Driver points. Red flag time is not counted toward
drive-time. A Driver must be a starter in the Race. A
Car must be considered to have started the Race to
be credited with a finishing position and be eligible
for awards.
9.5.2 Starters. A Driver is considered to be a starter in a
Race if they cross the Start Line during the Race
start or start from the pit lane after the green flag is
displayed for the Race start, in accordance with
these Regulations. A Car is consider to have started
the Race if it crosses the Start Line during the Race
start or starts from the pit lane after the green flag
is displayed for the Race start, in accordance with
these Regulations.
9.5.3 Drivers and Cars. Points are awarded to a Driver
only in the Car(s) (one per class) he is nominated to
drive. A Driver nominated in two (2) Cars in the
same class must qualify and start the Race in one
(1) of the Cars. The Car that the Driver uses to
qualify and start the Race is the Car in which the
Driver receives points in that class. For the
purposes of clarification, each class, i.e. DP, GT &
GX (Continental: GS & ST), is defined as a separate
Race for each Event. In cases of extreme hardship,
after the qualifying Session has started, the Race
Director may approve a Driver substitution. Driver
points are not awarded to the substitute Driver.
9.5.4 Performance.
a. Daytona Prototypes: For each Race, each
Driver, in a Car he is nominated to drive, must
achieve a lap time no greater than 110% of the
average lap times of the fastest three qualifiers
of his class.
51

. GT/GX: For each Race, each Driver, in a Car
he is nominated to drive, must achieve a lap
time no greater than 110% of the average lap
times of the fastest three qualifiers in his class
and no greater that 120% of the average lap
times of the fastest three qualifiers overall
during official practice or qualifying.
9.5.5 Exception. The second Driver, originally nominated
per 6.1.8, may be eligible for points, at the sole
discretion of GRAND-AM, if unforeseen mechanical
or other circumstances prevent the Driver from
completing the 30 minute drive-time requirement,
so long as sufficient time remains in the Race Such
determinations are Conclusive.
9.5.6 Driver I.D. Transmitter. Drive–Time is attributed
based on the Driver I.D. transmitter recording at the
Start/Finish Line on the track. The Driver I.D. must
be correctly plugged in and functioning properly for
drive-time to be recorded. If not plugged in or functioning
properly, Driver may not receive drive-time
credit. Drive-Time starts when the specific Driver,
identified by his Driver I.D transmitter, crosses the
Start Line on the track at the start of the Race or on
the first passing of an individual Driver, identified by
his Driver I.D transmitter, crossing the Start line
during the Race. A Driver’s drive-time stops at his
last recorded crossing of the Start Line on the track
as identified by his Driver I.D transmitter.
9.6 Measurement. Distance is measured in whole laps
completed by a Driver, with lap credit going to the Driver who
crosses the Start Line at the end of each lap as identified by
his Driver I.D transmitter.
9.7 Ties. In the event of a tie in the final point standings, the tiebreaker
is according to the Driver’s relative number of first
place finishes, then the number of second place finishes, etc.
down to tenth place finishes. If a tie remains, the Driver
having the highest finishing position first during the current
season where the Driver competed in the respective Series
prevails.
9.8 GRAND-AM Manufacturer Championships.
9.8.1 Participation in the Manufacturers Championship
is subject to GRAND-AM approval. To be
eligible to receive manufacturer points in the
52

Manufacturer’s Championship, a manufacturer
must be approved by GRAND-AM in Writing.
GRAND-AM recognizes manufacturer champions in
each class as follows:
a. DP: engine manufacturer and chassis manufacturer.
b. GT and GX (Continental: GS and ST): automobile
brand manufacturer each.
c. Manufacturer championships are based on
relative point standings at the conclusion of
the season.
d. Manufacturer championship points are
awarded per 9.4.1, except each manufacturer
receives points only for its highest finishing
positioned Car in each Race.
9.9 GRAND-AM Team Championships
9.9.1 GRAND-AM recognizes team champions in each
class. To be eligible for points in the Team
Championship, the Entrant;
a. Must hold a current and valid Entrant
Membership.
b. May register multiple Cars but each Car earns
points separately.
c. Must use no more than three (3) chassis (same
competition number) during the season.
d. Points earned in one class do not transfer to
another.
e. A DP, with the written approval of GRAND-AM,
may change engine manufacturers one time
within a season, only upon availability of an
approved new manufacturer’s engine, and
may then carry over their previously earned
points.
9.9.2 Team points are awarded per 9.4.1.
53

GENERAL AUTOMOBILE REGULATIONS
55

GENERAL AUTOMOBILE REGULATIONS (“GAR”)
SECTION 1 - INTRODUCTION
CLASSES AND CATEGORIES. All cars participating in an Event
must comply with the requirements and technical specifications of
the GAR and the applicable General Class Regulations (“GCR”). All
cars shall race in their respective class, the classes are as follows:
OVERVIEW
• Daytona Prototype Class. The Daytona Prototype (“DP”)
car requirements and specifications continue in the
Daytona Prototype General Class Regulations (“DP-
GCR”).
• Grand Touring Class. The Grand Touring (“GT/GX”) class
shall include 2 categories, “Prep 1 GT” and “Prep 2 GT”.
Car requirements and specification for both categories
continue in the Grand Touring General Class Regulations
(“GT/GX-GCR”)
• Grand Sport Class. The Grand Sport (“GS”) car requirements
and specification continue in the Grand
Sport/Street Tuner General Class Regulations (“GS/ST-
GCR”)
• Street Tuner. The Street Tuner (“ST”) car requirements
and specification continue in the Grand Sport/Street
Tuner General Class Regulations (“GS/ST-GCR”)
• The Regulations do not permit variations, changes, alterations
or modifications to any component produced by
the OEM unless specifically authorized in the GAR and/or
GCR. If there is a conflict between the GAR and the GCR,
the GCR shall govern.
• All Members should presume that variations are prohibited
unless specifically stated within the Regulations. No
permitted component/modification shall additionally
perform a prohibited function.
• Any component, car construction or repair that does not
meet the exact specifications of the Regulations or is
deemed not to be in the spirit of these Regulations by
GRAND-AM may be disallowed by GRAND-AM.
• If a Member has a question or doubt regarding the eligibility
of any component, variation, specification or
procedure, it is the Member’s responsibility to obtain
written approval of the component, variation, specification
or procedure from GRAND-AM prior to its use.
56

1-1 Eligibility –.
1-1.1 All cars, engines, bodywork and components must
be approved by GRAND-AM. All engine or component
changes or modifications not previously
approved by GRAND-AM must be submitted in
writing to the appropriate Series Manager in a
timely manner in order to be considered at the next
scheduled technical committee review meeting.
Please see the on-line process to do this at:
www.grand-am.com/competitor information/technical
committee.aspx
1-1.2 All approved components (including but not limited
to brakes, wheels, shocks, driveline components,
body parts, etc.) must be available for sale to the
public in a regular product offering.
1-1.3 Equipment will not be considered approved by
reason of passing through technical inspection
unobserved.
1-1.4 During a Race, it is prohibited to replace the
following parts under penalty of exclusion: engine
block, chassis and/or unibody shell.
1-2 Measurements – Measurements will be made while the car
is stationary on a flat horizontal surface or as provided by
GRAND-AM.
1-2.1 GRAND-AM templates may be used to check
vehicle body dimensions or configuration.
1-3 Equivalence Formulas – The following standard formula will
be used with respect to the Regulations.
1 inch = 2.54 centimeters = 25.4 millimeters
1 foot = 12 inches = 0.3048 meters
1 mile = 1760 yards = 5280 feet = 1.60934 kilometers
1 square inch = 6.452 square centimeters
1 cubic inch = 16.387 cubic centimeters
1 U.S. gallon = 4 U.S. quarts = 231 cubic inches = 3.785 liters
1 pound = 16 ounces = 453.592 grams
1 mile per hour = 1.467 feet per second = 1.60934 kilometers
per hour
1 millimeter = 0.1 centimeters = 0.03937 inches
1 meter = 3.281 feet = 1.0936 yards
1 kilometer = 1000 meters = 1093.6 yards = 0.62137 miles
1 cubic centimeter = 0.061 cubic inches
1 liter = 1000 cubic centimeters = 61.0255 cubic inches =
0.264 U.S. gallon
1 kilogram = 1000 grams = 2.2046 pounds
1 kilometer per hour = 0.62137 miles per hour
57

Cylinder volume = bore” X bore” X stroke” X 0.7854.
Cylinder volume = bore(mm) X bore(mm) X stroke (mm) X
.0007854
Engine displacement = cylinder volume x number of cylinders
1 bar = 14.5 psi
Atmospheric Pressure = 29.92” HG = 14.696 psi = 1.013 bar
Average Speed = 3600 x length of track x number of laps /
total of time in seconds
SECTION 2 - BODYWORK REGULATIONS
2-1 Bodywork -
2-1.1 The bodywork must cover all mechanical components
when seen from above or from the side, with
the exception of the lower half of the complete
wheels. All bodywork must be contiguous
2-1.2 All bodywork must be rigidly secured to the sprung
part of the vehicle (chassis/body unit), must be
securely fixed and remain immobile in relation while
the vehicle is in motion.
2-1.3 Any device or construction that is designed to
bridge the gap between the sprung part of the car
and the ground is prohibited.
2-1.4 The external shape, including but not limited to the
roofline, front and rear window angles, overall
shape and other recognizable features of the body
must be original OE or as approved. 2-1.5 Air Inlets
– Add on air inlets are prohibited. . Snorkel-type air
intakes are prohibited.
2-1.6 Front and rear overhang, and wheelbase must be
original OE or as approved.
2-1.7 Doors - The dimensions and functions of the doors
must be original OE. The door hinges in the DP and
GT classes may be replaced.
2-1.8 All bodywork joints in the vicinity of the fueling
connections must be designed in such a way as to
prevent any leakage of fuel into the engine
compartment or cockpit. Bodywork, joints/seams
may not be taped or covered in any way.
2-1.9 DP and GT cars are permitted to use paint protection
film on the bodywork.
2-1.10 The floor/bottom of the car may have no openings
other than those required for the onboard air jacks.
58

2-2 Rear Wing – All Rolex cars must use the GRAND-AM specified
Crawford wing in its as delivered form. The finish cannot
be altered/painted/covered (including tape) in any way.
Removable die cut vinyl sponsorship decals may be applied
per the approval of GRAND-AM Technical Inspection.
2-3 Bodywork Pins –The pins or catches used must hold the
hood or body panel in its normal standard position and location
at all times. It must be possible to remove or open the
hood or body panels without the use of tools.
2-4 Windshield Wiper – Motor, position, blades and mechanism
are free (DP and GT only).
2-5 Lights – Headlights, taillights and brake lights are required for
night races and races running in inclement weather and must
be located in the OE or approved locations. AllGT/GX cars
must use yellow/amber tinted headlight lenses. DP cars are
prohibited from tinting the headlight covers or lenses.
2-5.1 Auxiliary lighting as approved by GRAND-AM (DP
and GT only) must be located within the bodywork.
2-5.2 Headlights and taillights must remain functional and
on when the car is stopped and/or if the engine is
not running.
2-5.3 It is prohibited to use flashing or strobe effect headlights.
Flashing or strobe lights may be used in
conjunction with the speed limiter in pit lane.
Headlights may be turned on and off (individual
flashes) in daytime or nighttime conditions.
2-5.4 At all times a minimum of one brake light must be
functional. If not, it must be repaired at the next
scheduled pit stop. During periods of darkness or
inclement weather a minimum of one headlight and
one taillight must remain functional at all times. If
not, the car must pit immediately and it must be
repaired.
2-6 Windshield/Rear Window
2-6.1 All DP and Prep 2 GT cars are required to use a
laminated polycarbonate (Lexan) windshield and
rear window. (recommended minimum thickness of
0.266) and rear window. (Recommended minimum
thickness of 0.266) Polycarbonate windshields and
rear windows must be positively retained by cam
locks or 10-32 threaded fasteners. A maximum
spacing of 10” along top, sides, and bottom will be
59

permitted. An alternate fastening method may be
approved by GRAND-AM upon request. Refer to
GT-GCR Section 4-4 for rear window retention.
2-6.2 Prep 1 GT, GS and ST cars utilizing a glass windshield
and rear window must mount the windows
using OEM standard adhesive. Prep 1 GT cars may
utilize additional retention devices. A maximum
spacing of 10” along top, sides, and bottom will be
permitted. An alternate fastening method may be
approved by GRAND-AM upon request. Refer to
GT-GCR Section 4-4 for rear window retention.
Prep 1 GT cars may use a polycarbonate windshield
and rear window as specified in article 2-6.1.
GS and ST cars may utilize windshield retention
clips.
SECTION 3 - ENGINE REGULATIONS
3-1 General Engine Eligibility –
3-1.1 All eligible engines will be determined, selected,
listed in the SCR, and approved by GRAND-AM
prior to competition use. It is mandatory that all
major components and parts be for sale to the
public in a regular product offering in North
America.
3-1.2 All engines must have a clearly visible serial number
(duplicate numbered engines will result in a $10,000
fine to the Entrant).
3-1.3 Unless stated specifically in the engine homologation
or SCR the use of magnesium or ceramic
components is prohibited.
3-1.4 Only a direct mechanical linkage between the
throttle pedal and the engine is permitted unless an
alternate system is approved by GRAND-AM.
3-1.5 The following characteristics must be identical with
the production engine as approved by GRAND-AM.
Cylinder Block - number and angle of cylinders,
material, number of main bearings and type, location
of camshaft, overall configuration, and cylinder
bore centerline. Engine blocks are permitted a
maximum .030 overbore, unless stated specifically
otherwise.
Cylinder Head - number of valves per cylinder,
arrangement, location, angle, and type of actuation,
and spring type. Combustion chamber, location
and orientation of spark plug, number of intake and
60

exhaust ports, shape and location of ports at
mating faces of manifolds, angle of port face relative
to mating face of head to block.
Turbo Charging – Eligible turbocharged or supercharged
engines are limited to production OE
engines. These engines must be available in a
product offering at automobile dealerships in the
United States.
3-2 Pistons/Rods - For the DP class only solid magnetic steel
connecting rods are permitted, with the exception of
approved engines less than 4.0L, For the titanium
connecting rods may be used if fitted in the production
engine.
3-3 Cylinder Heads - Only OE or GRAND-AM approved cylinder
heads are permitted. Valves /ValveSpring - Only steel or titanium
valves are permitted. Only magnetic steel valve springs
are permitted.
3-4 Crankshaft – Only magnetic steel crankshafts are permitted.
Unless otherwise approved, the OE angles of the crank
throws must be retained.
3-5 Camshaft, Valve Lifter, and Rocker Arms – Rocker arms,
lifters and steel pushrods may be replaced with aftermarket
components with GRAND-AM approval.
3-6 Engine Air Restrictors – When required engine air restrictors
must be used as supplied byGRAND-AM. The
Manufacturer or the team and may not be modified in any
way.
SECTION 4 - ELECTRICAL
4-1 Ignition System -
4-1.1 The ignition system must be approved by GRAND-
AM. Magnetos are prohibited. The distributor (if
used) must be mounted in the OE location. The
standard firing order must be maintained, unless
otherwise approved.
4-1.2 RPM Limits. Cars in all classes may be assigned
maximum RPM limits. These limits will be regulated
as follows;
• RPM tolerance. The maximum RPM permitted
is as listed for each vehicle in the SCR. The
61

limit is considered to be exceeded when either
of these conditions are found:
• Any event over the regulated limit for more
than 250ms that occurs when the throttle
above 60% of maximum.
• Any event with the throttle above 60% of
maximum that is more than .1% beyond
the regulated amount for more than
100ms. (Example 8000 limit would mean
beyond 8080.)
4-2 Electrical System -
4-2.1 Electrical Switch. A master electrical disconnect
switch is required within reach of the Driver. All cars
are required to have additional electrical and fire
system switches located outside of the car on the
cowl at the base of Driver’s side “A” pillar.
4-2.2 Batteries – All batteries must be securely mounted,
sealed, able to start the car at all times and insulated.
Only lead-acid technology, either wet cell,
AGM, or gel-cell matrix will be permitted. No other
form of electrochemical energy storage is
permitted. 12-volt systems only. 4-2.3 Starter. A
starter must be fitted and be in working order at all
times. The Driver must be able to operate the
starter when seated normally.
4-2.4 Electronic or digital dashes are permitted.
4-3 Traction Control - (DP and GT only)
4-3.1 Traction control or stability control is prohibited.
Any car suspected of using traction control,
stability control or any like device will be
impounded until GRAND-AM completes an investigation.
If it determined by Officials that any form of
traction control is used, the Entrant and Drivers will
have their GRAND-AM privileges suspended for a
period of up to 1 year .The results of GRAND-AM’s
investigation and subsequent decisions are final
and is not subject to protest or appeal.
4-3.2 All other automatic or electronic chassis control
systems or functions are prohibited. This includes
but not limited to: power brakes – throttle and/or
brake activated traction control - automatic or
semi-automatic shift transmissions - power-actuated
clutches - electronically or automatically
62

adjusted drive differential systems - ride height
adjustment - moveable ballast.
4.4 Traction Control – (All Classes) ECU CONTROL. Engine
mapping and control must not be affected by the speed of
the non-drive wheel. Any trigger that influences engine calibration
must be accomplished exclusively from the driven
wheel. These triggers may ONLY influence the RPM cut and
no other channel or calibration. The trigger may be not used
in any way to implement a traction control process at any
time.
SECTION 5 - COOLING
5-1 Cooling System -
5-1.1 Only mechanically driven water pumps are
permitted.
5-1.2 Only electric radiator cooling fans are permitted.
5-1.3 An Expansion tank located in the engine compartment
is permitted.
5-1.4 Additional engine, transmission and differential oil
coolers are permitted, provided no external bodywork
modifications are required.
5-1.5 Glycol based additives are prohibited.
SECTION 6 - ENGINE LUBRICATION/DRY SUMP
6-1 Oil Reservoir Tank -
6-1.1 Oil reservoir tank must be mounted within the main
chassis framework.
6-1.2 All oil lines must be armor-braided with AN
threaded coupling.
SECTION 7 - EXHAUST
7-1 Exhaust System -
7-1.1 Unless otherwise approved exhaust systems must
remain within the perimeter of the bodywork when
viewed from above. Mufflers may be required.
7-1.2 Sound levels generated by individual cars may be
limited to 106 dba. Compliance will be determined
by static measurements taken at 18” from the
ground, 5ft back and 5ft offset to the exhaust
outlet.
7-1.3 Titanium exhaust systems are prohibited.
63

SECTION 8 - DRIVE TRAIN
8-1 Drive Train - Semi-automatic or automatic gearboxes and
differentials with electronic, pneumatic, hydraulic or mechanical
adjustable slip control are prohibited.
8-1.1 4-wheel drive is prohibited. (DP and GT Only)
8-1.2 Viscous differentials are prohibited.
8-1.3 The transmission must be designed so if the car is
stopped and/or the engine has stalled, it can be
freely pushed or towed.
8-1.4 All cars must have a working reverse gear, which
must be selected while the engine is running and
the Driver is seated normally.
8-2 AGS (Paddleshift) Systems – for approved drivers, in DP,
GT, and GX a paddleshift system may be installed
provided it meets the following requirements:
8-2.1 The software and downloading cable for the system
must be provided to GRAND-AM. Access to the
vehicle configuration and actuation speed must be
accessible by GRAND-AM.
8-2.2 A shift request may not be held by the system for
longer than 60 milliseconds before dropping out. In
other words, if the system declines to initiate the
shift due to ‘out of parameter’ conditions, the
request must be remade by the driver for the gear
change to be completed. Gear selection may not be
‘preselected’.
8-2.3 The minimum shift time from driver request to shift
completion must not be faster than 150 milliseconds.
8-2.4 Neutral gear position must be achievable by the
corner worker with the engine off.
8-3 Artificial Heating - For qualifying and/or the race, artificial
heating of the engine/oil, sump tank, and transmission rear
end assembly is prohibited.
SECTION 9 - WHEELS AND TIRES
9-1 Official Tire – Grand-Am Rolex Sports Car Series - The
Official Tire Supplier of the GRAND-AM Rolex Sports Car
Series is Continental Tire. Reference: GCR
9-2 Official Tire – Grand-Am Continental Tire Sports Car
Challenge - The Official Tire Supplier for the GRAND-AM
64

Continental Tire Sports Car Challenge is Continental Tire.
Reference: GCR
9-3 Control - GRAND-AM will control the eligibility of tires during
all Sessions. All Competitors must use the specified tire, as
supplied by the Official Tire Supplier at the Event, during all
Sessions.
9-3.1 GRAND-AM may require Competitors to use the
same tires used in qualifying to start the race.
9-3.2 GRAND-AM may limit the number of tires used in
competition.
9-3.3 GRAND-AM may require all cars to use the same
type of tire.
9-3.4 GRAND-AM may mark, impound, or exchange the
tires at any time.
9-3.5 GRAND-AM may prohibit the use of any tire that
has is believed to have been treated with a
substance that may alter the properties of the tire.
9-4 Responsibility -
9-4.1 It is responsibility of the Competitor to order and
confirm with the Official Tire supplier that the
competitor’s tires will be available at each event.
9-4.2 All cars must display the appropriate unmodified
official tire company decal as illustrated on the
appropriate series decal diagram at all times. To be
eligible for tire company awards, all drivers must
display the appropriate tire company patch on the
upper left of the chest area of their driver’s suit.
9-4.3 If it is determined by GRAND-AM Officials that any
form of unapproved testing on non series tires has
taken place, the entrant and drivers will have their
GRAND-AM priviledges suspended for a period of
up to one (1) year. The results of GRAND-AM’s
investigation and subsequent decisions are not
subject to protest or appeal.
9-4.4 Disposal – Competitors in the GS and ST classes
are responsible for proper disposal of used tires.
9-5 Artificial Heating – The use of tire warmers or any other
means of artificially heating the wheels, tires and/or tire gas
is prohibited.
9-6 Tire Air Pressure –
9-6.1 Pressure control valves are prohibited.
9-6.2 Tire temperature sensors of any kind are prohibited.
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9-6.3 Tire pressure monitor systems are prohibited in the
GS and ST classes.
9-7 Carbon fiber and Wide 5 wheels are prohibited.
9-8 Wheel Attachment (DP and GT only) - Spline-drive nuts are
prohibited.
9-9 Wheel Diameter (DP and GT only) - All wheels must be 18”
diameter, unless stated specifically in the SCR.
SECTION 10 - CHASSIS
10-1 Suspension -
10-1.1 Suspension - All suspension components must be
made from homogeneous metallic materials and
approved by GRAND-AM. The type, number of
mounting points, components and uprights must
remain as approved. Coil springs - steel only,
maximum 4. The springing medium must not
consist solely of flexible arms or bushings. There
must be suspension travel in excess of any flexibility
in the attachments.
10-1.2 Rubber joints may be replaced with uniball joints
(DP and GT only).
10-1.3 Front and rear anti-roll bars are permitted (see
GCR)
10-1.4 Driver adjustable springs and shock absorbers are
prohibited.
10-1.5 Shocks - only 1 per wheel, and only 1 remote
canister per shock is permitted. Any form of driver
adjustment is prohibited. Metallic or compressible
fluids are prohibited. Cross-connected shocks/
remote canisters are prohibited.
10-1.6 Alternative damping/mass damper applications. No
electrical, hydraulic, pneumatic or mechanical
connection (other than the anti-roll bars/links) is
permitted between the shock absorbers and the
suspension. Any Suspension component utilizing
“Cambridge”, “j-style” or “inerter” technology is not
permitted for use. Any attenuation device involved
in suspension or tire control other than gas/fluid
damper must be specifically approved in writing by
GRAND-AM.
10-1.7 Chromium plating of steel suspension parts
is prohibited.
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10-2 Steering -
10-2.1 All cars must use the 2 front wheels for steering.
10-2.2 There must be a continuous metal linkage between
the steering wheel and the steered front wheels.
10-2.3 A magnetic steel collapsible steering shaft and a
quick release metal steering wheel coupling is
required (DP and GT only).
10-2.4 Power steering is permitted.
10-2.5 4-wheel steering is prohibited.
10-3 Frame/Roll Cage -
10-3.1 All roll cage components must be made of round
magnetic seamless steel tubing and welded. The
chassis must incorporate a full roll cage per normal
industry standards.
10-3.2 Roll cage should include: Main roll bar #1. Front roll
bar legs #2 A&B. Roof halo bar #3. Roof center bar
#4. Center windshield bar #4A. Main roll bar diagonal
bar #5. Horizontal tunnel bar #6. Horizontal
shoulder bar #7. Dashboard bar #8. At least 3
NASCAR style door bars #9A are recommended on
both the right and left sides as applicable. The door
bars rear-mounting point should be at the main roll
hoop bulkhead and the front mounting point must
be at the Front roll bar legs #2 A or B. The door bars
must include at least 3 equally spaced vertical
uprights and at least 2 horizontal bars on the
Driver’s side that must extend outward to the outer
door skin from the lower door bar down to the
mainframe rail/rocker panel. Vent window bar #10
A&B. Rear support bars #13 A&B plus a diagonal,
or X cross bars. See Exhibit #2 exploded view of
basic roll cage, Ref: Roll Cage diagram at the end
of the section.
10-3.3 Bars number 1, 2, 3, 4, 4A, 5, *6, *7, *8, 9A and 13
A&B must be round magnetic seamless steel tubing
at least 1.750” diameter X 0.095” minimum wall
thickness. *Bars number 6, 7, and 8 may also be
1.750” square tubing X 0.095” minimum wall thickness.
Proof of material and structural design is the
responsibility of the Entrant and must be acceptable
to GRAND-AM. Ref: Roll Cage diagram at the
end of the section.
10-3.4 Composite material utilized as the primary structural
component is prohibited.
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10-3.5 Door bars and/or a roll cage of an alternate configuration
may be approved by GRAND-AM.
10-3.6 Specific FIA-approved manufacturer-installed roll
cages may be permitted following GRAND-AM
review of FIA homologation papers. These must be
provided by the entrant wishing to use the FIA
cage. GRAND-AM may require additional structure
and/or material dimension and support changes to
these cages before being approved. Minimum
material requirement is 40mm x 2mm for all
required tube sections.
10-4 Air Jacks - On board air jacking system is permitted. (DP
and GT only)
10-4.1 On board air jacking systems are permitted. (DP
and GT only)
10-4.1 A maximum of 4 air jacks may be installed, with a
maximum opening diameter of 3.750” for each jack
in the floor bottom.
10-4.2 On board compressed air bottles are prohibited.
10-5 Car Weight/Ballast -
10-5.1 Minimum weight will be less fuel and Driver, as
raced.
10-5.2 Any ballast added must be bolted in a GRAND-AM
approved location.
10-5.3 Weights must be in solid form (no pellets) and
weigh a minimum 5lbs.
10-5.4 It is prohibited to add or remove weight or change
to a lighter component during any Session.
10-5.5 GRAND-AM reserves the right to check vehicle
weight at any time during an Event.
10-5.6 GRAND-AM reserves the right to adjust minimum
weights.
SECTION 11 - BRAKES
11-1 Brakes - Brakes must meet the following requirements.
11-1.1 Only magnetic cast iron or cast steel rotors.
11-1.2 Titanium pistons are permitted in brake calipers.
(DP and GT only)
11-1.3 Unless as provided by OE, the brake pedal must
operate all 4 wheels through a dual master cylinder
system.
11-1.4 Unless otherwise permitted, anti-lock/ABS brakes
and power brakes are prohibited. (DP and GT only)
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11-1.5 Brake pad material is unrestricted. Brake pad
backing plates must be steel.
11-1.6 ABS is permitted in the GS and ST classes when
the stock ECU and ABS controller are used.
GRAND-AM may specify an alternative ABS
controller.
11-1.7 Brake bias (front to rear proportion) may be
adjusted by the means of a manual adjuster
11-2 Brake Cooling System - Liquid and/or gas cooling of the
brakes are prohibited. Brake fluid re-circulating systems are
prohibited.
SECTION 12 - FUEL/FUEL CELLS
12-1 Official Fuel - The Official Fuel of GRAND-AM is Sunoco
Race Fuels Sunoco 260GTX. The Official Fuel Supplier is
Sunoco.
12-1.2 Only air may be mixed with the fuel as an oxidant.
12-1.3 All Competitors must use the Official Fuel, as
supplied by the Official Fuel Supplier r at the Event
during all Sessions.
12-1.4 Rotary engines in the GT and ST classes will be
permitted to add 2-cycle oil to their fuel.
Competitors must provide a sample of the oil and
the mixture rate.
12-1.5 GRAND-AM may specify alternative fuels that are
not gasoline.
12-2 Sampling - GRAND-AM has the right to sample a
Competitor’s fuel at any time.
12-3 Fuel Handling - Competitors are responsible for the safe
and proper handling and security of their fuel from when it is
dispensed to them until it is used. Competitors are responsible
for properly disposing of all unused fuel.
12-4 Fuel Cell/Fillers/Vents -
12-4.1 Officials will reject any fuel cell, container, or check
valve which appears to be damaged, defective, or
does not function properly.
12-4.2 Fuel cells must be commercially manufactured and
meet at least FIA Specification FT3, the bladder
must have a printed code indicating the name of
the manufacturer, the specification to which the
tank has been manufactured and the date of manu-
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facture. Fuel cells must contain fuel cell foam to a
minimum of 80% of the enclosed volume.
12-4.3 Fuel cells become obsolete 5 years after date of
manufacture and must be replaced, unless
inspected and recertified by the manufacturer for a
period of 2 additional years. Entrant must provide
proof of certification at each Event.
12-4.4 The only permitted dry break is the unmodified ATL
red head # RE105. GS and ST cars are permitted to
use PP125DVR10 dry breaks from Red Head Valves
provided a 1” restrictor is installed in line. The dual
probe filler must be fitted with a dual probe fuel
tank filler and vent system. Both the filler and the air
vent must be equipped with a leak proof probe dry
break coupling complying with the dead man principle.
The couplings must not incorporate any
retaining device when in an open position.
12-4.5 Fuel tank fillers and vents may not protrude beyond
the bodywork, be located in the rear windows or
any other vulnerable location. GT, GX, GS and ST
cars must use flexible filler lines to fuel cell.
12-4.6 Any breather pipe connecting the tank to the
atmosphere must exit outside the bodywork and
must be fitted with a gravity activated rollover valve
to control fuel loss under any condition.
12-4.7 The fill tube from the cover plate may extend no
more than 6” into the enclosed volume of the fuel
cell bladder. The fill tube must be straight and may
not have any swirl pots, diffusers or any other
augmentation. The top or side mounted fuel cell
fill/cover plate must be removable for inspection.
Bottom fill panels are prohibited. The fill tube
cannot enter the fuel cell below a point 13” above
the bottom of the fuel cell.
12-4.8 At least 3 of the mounting bolts that fasten the fuel
cell top, side and or bottom covers to the fuel cell
bladder must be drilled to allow wire sealing by
GRAND-AM after inspection.
12-4.9 There must be a valve, supplied by the manufacturer,
in the fuel cell top cover, which seals in the
event of the filler hose being knocked off.
12-4.10 All fittings in the rubber fuel cell bladder including
air vents, inlets, outlets, tank fillers, inter-tank
connectors and access openings must be metal
fittings bonded to the bladder.
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12-4.11 All fuel cell installations must be approved by
GRAND-AM prior to competition. Pictures and or
drawings must be supplied.
12-5 Fuel Lines - All lines must be fitted in such a way that any
leakage cannot result. All fuel lines must have threaded
connectors and be armor braided.
12-6 Fuel Pumps - are free except they may not be mounted in
Driver compartment. The fuel pumps must shut off when the
engine stops running and the fuel pumps may have a bypass
system for start-up.
12-7 Fuel Capacity -
12-7.1 Any device, system, procedure, construction or
design, for the purpose and/or effect of increasing
whatsoever, even temporarily, the total fuel storage
capacity beyond the maximum is prohibited.
12-7.2 Any device used to adjust fuel cell capacity beneath
the maximum cannot be located in Driver’s
compartment.
12-7.3 Maximum permitted total onboard fuel capacity is
18.5 U.S. gallons for DP and listed in the SCR for
other classes or on the event supplemental regulations.
See GS/ST-GCR for GS and ST fuel capacity.
12-7.4 GRAND-AM reserves the right to adjust the fuel
capacity. Reductions to capacity must be accomplished
by use of in-cell displacement media
(blocks or balls). The fuel bladder and container
may not be changed to accomplish reduced
capacity.
Capacity will be measured using GRAND-AM
measuring devices/procedures.
12-7.5 Regardless of whether a fuel system/cell has been
sealed or not, GRAND-AM may perform checks at
any time.
SECTION 13 - DATA ACQUISITION/RECORDING
13-1 Telemetry - is for the DP, GT and GX classes. See the class
specific GCR for more information. Telemetry is prohibited in
Continental Tire Sports Car Challenge.
13-2 Data Acquisition - Engine/chassis data acquisition system
having a separate wiring system with visible wire tracing
71

ability is permitted. (DP and GT only). Downloading of any
kind is prohibited during qualifying.
13-3 Radios – A single working 2-way voice radio with car-to-pit
communication capability is required at all times.
13-3.1 Radio frequencies MUST be registered with
GRAND-AM and Racing Radios.
13-3.2 Radio signals cannot be encrypted or scrambled.
Frequency hopping, Digital or Project 25 radios and
trunking equipment are prohibited. Frequency
range is limited to 450 to 470 mega hertz. Power
limited to 10 watts on mobile, repeater and base
units and 4 watts on hand held units.
13-3.3 Entrants are limited to a maximum of 4 frequencies.
GRAND-AM may choose to record conversations.
13-3.4 GRAND-AM recognizes that the FCC requires radio
frequency users to be licensed. GRAND-AM
recommends that you contact Racing Radios for
your licensing needs.
13-3.5 GRAND-AM requires that all Competitors monitor
the race control channel at all times their cars are
scheduled to be on track.
13-3.6 Race Control must be monitored on frequency
461.6250 mz.
13-4 Transmitter - The required driver ID timing and scoring
transmitter or designated alternative (“Spec Transmitter”),
located in the left front wheel well is required at all times.
Driver ID plugs MUST be located on Driver’s helmets during
all Sessions. If not functioning properly, the car may be
required to pit for repair. During a race, reasonable efforts
must be made to repair and thereafter, GRAND-AM may use
its discretion to continue scoring or not. A single exception
will be permitted for a new car for their 1st Session.
13-5 Data Recording - GRAND-AM reserves the right to view
any/all data collected by a Competitor at anytime. Each car
in GT, GS and ST classes will make provisions for a data
recorder as required by GRAND-AM upon request. GRAND-
AM may specify a wiring harness to be used for data logger
as provided by GRAND-AM.
13-5.1 Only GRAND-AM specified EFI Level 4, Motec ADL,
ADL2, ADL3 and Bosch data logging systems are
permitted. All Competitors using specified data
acquisition systems in the DP and GT classes must
use the following standardized tire circumference
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“roll-out” in the set up of their data:
DP Front – 2058mm Rear – 2212mm
GT 265/645R18-2032mm
285/645R18-2032mm
305/650R18-2065mm
305/660R18-2080mm
325/680R18-2145mm
325/710R18-2222mm
325/710R19-2222mm
Failure to use these dimensions in qualifying or
the race may result in loss of points and/or fine.
13-6 Accident Data Recorders – GRAND-AM accident data
recorders may be required. The recorder will be supplied by
GRAND-AM at the beginning of each Event and collected
immediately following the conclusion of the Event.
13-6.1 Competitors will be instructed on acquiring an
approved mounting bracket at the appropriate time.
The mounting bracket must be installed per
GRAND-AM direction.
13-6.2 Installation drawings and instructions will be
supplied by GRAND-AM.
13-6.3 In the event of an accident, an Official will download
the data from the recorder, photograph, film and
document the damage, or collect other information
as needed.
13-6.4 Analysis will be performed by GRAND-AM or a 3rd
party and data will be retained on a secure server.
13-6.5 The purpose of the program is to acquire and
provide information on accidents to support
ongoing safety development. GRAND-AM may
require the installation of the recorder made by
Independent Witness in all DP and GT cars and
eventually in all GS and ST cars.
SECTION 14 - IDENTIFICATION AND MARKINGS
14-1 Competition Numbers – Competition numbers will be
assigned and required by GRAND-AM.
14-1.1 Block competition numbers must be at least 12”
high X 2” stroke and must be separated by at least
2”, applied between the wheel arches below a
longitudinal line 20” above the flat floor reference
plane/rocker panel.
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Competition numbers at least 8” high X 1” stroke
must be on the front of the car (and rear of the car
for GT and CTSCC) and in a visible location.
14-1.2 All car numbers must be of a contrasting color to
the car and cannot be chrome. GRAND-AM may
pre-approve alternate color and number designs.
14-1.3 All competition numbers must be acceptable to
GRAND-AM regardless of compliance with above
dimensions.
14-2 Logos and Brand marks -
14-2.1 Conflicting series/sanctioning body, official mandatory
product (fuel, tires, etc.), and/or series sponsor
identification of any kind must be removed from
cars and uniforms while participating at any Event
unless authorized in writing by GRAND-AM.
14-2.2 GRAND-AM may refuse to permit, or may restrict or
assign the size or placement of decals, identification,
and advertising of any kind on a car,
transporter, pit equipment, or uniforms for any
reason. All Members agree to accept GRAND-AM's
decision in this regard.
14-2.3 GRAND-AM may refuse to permit a Competitor to
participate in an Event if GRAND-AM determines
that any advertising, sponsorship or similar agreement
to which the Competitor (or a car owner,
Entrant, Driver or crewmember) is or will be a party
to, is detrimental to the sport, to GRAND-AM, or to
the Promoter for any reason, including without limitation
the public image of the sport.
14-2.4 Advertising slogans and designs are subject to
approval by GRAND-AM.
14-2.5 GRAND-AM will designate an area on the car for:
-Decals, advertising or identification of series sponsors.
-Decals, advertising or identification of contingency
program sponsors.
-Such other decals, advertising or identification as
GRAND-AM may in its sole discretion permit or
require.
14-2.6 GRAND-AM will designate requirements for Driver
fire suits and crew uniforms.
14-2.7 Windshield signage is limited exclusively to
GRAND-AM signage or GRAND-AM approved
signage.
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14-3 Rig Identification – All car transporters and support vehicles
with access to the garage/paddock area must have clearly
visible in the front windscreen and on the rear doors, the
team name, car number and category, and awning dimension.
All transporters in the paddock must prominently
display on each side the appropriate series decal.
SECTION 15 - SAFETY EQUIPMENT
15-1 Driver Equipment - The following items must be worn/used
during all Sessions and must be used in accordance with the
manufacturer's instructions. It is the sole responsibility of the
Driver to ensure that all safety items are correctly installed,
maintained and properly used. All Driver safety equipment
including nets, belts, restraint devices, etc. must remain on
and in place until the car comes to a stop in its pit location.
All equipment must be installed and be in proper place prior
to the car leaving the Pit Stall.
15-1.1 Helmet of recognized high quality approved by the
Snell Foundation, or FIA 8860-2004, FIA 8860-
2010, or British Standard – BS6658-85 Type A/FR
(Red label) fitted with eject helmet removal
system. Contact: Racing Radios.
15-1.2 Nomex or equivalent fire-resistant driving suit
meeting SFI or FIA standards with a minimum of 2
layers and full-length underwear of similar material.
15-1.3 Gloves, shoes, and socks made of fire-resistant
material.
15-1.4 A 6-point Driver restraint system - lap belt and
shoulder harness minimum 3” wide or FIA standards
8853-98 or NASCAR standard. The system
must conform to the manufacturer’s mounting
instructions, and it must be configured, maintained
and used in accordance with the manufacturer’s
instructions. The system must be dated by the
manufacturer, and must not be used beyond 3
years after date of manufacture.
15-1.5 Head and Neck Restraint Device/System – It is
required that Drivers use an approved system. The
system must conform to the manufacturer’s
mounting instructions, and it must be configured,
maintained and used in accordance with the manufacturer’s
instructions. The approved system is:
HANS-manufacturer Hubbard/Downing, Inc.
contact Trish England in Customer Service at 888-
426-7999 (for overseas calls use 770-457-1046) or
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hansdevice.com. The approved head and neck
restraining device/system will remain approved for
use in competition until their expiration date which
is five (5) years after the date of manufacture. At this
time the head and neck restraint device/system
must be returned to the manufacturer for inspection
and re-certification.
15-1.6 GT, GS and ST cars – A Driver’s side window net
meeting SFI Specification 27.1 is required. It must
latch in the upper forward corner and the bottom of
the net must be attached to the upper door (#9) and
cannot be mounted to the bodywork. It must latch
with a seat belt style latch in the upper forward
corner. The system must be dated by the manufacturer,
and must not be used beyond 3 years after
date of manufacture.
15-1.7 All areas of the cockpit (including roll cage tubes,
upper frame rails and any other object) that are
within the proximity of the Driver in his seated position
must be padded. The padding must be
dense-foam hard coat, approved padding, (the SFI
approved padding) offered by CV Products,
RPXpress, and others is acceptable to Officials.
15-1.8 Seats must be rigidly mounted and incorporate a
headrest. Adjustable sliding seats must have positive
retention in both forward and rearward
directions so as not to slide during impact. All seat
systems must incorporate rigid lateral support and
restraint at the head, shoulder and hips for all
entered Drivers, and must have a rigidly affixed
head pad (minimum 6”h x6”w) behind the Driver’s
head with a minimum of 2” SFI 45.2 padding. The
shell must contain 1” minimum of impact padding
measured perpendicular to the seat back. Padding
may taper to less than 1” at edges or non support
areas. Padding must be either bead foam or SFI
45.2 or as delivered on FIA approved seats. Inserts
must also be bead foam or SFI 45.2 padding
molded to Driver. No gaps between insert and seat.
All seats and head restraint materials must be fire
resistant or covered in fire resistant material such as
Nomex or Carbonex.
DP Seats:
Seats must be carbon fiber shell rigidly mounted to
the chassis at the base and seatback. Gap between
76

seat back and firewall must be filled with padding to
prevent shell deflection in rear impacts. Lateral
head support, if used, may be part of seat or
chassis mounted, and must be rigid and have
minimum of 2” SFI 45.2 padding.
GT, GS and ST Seats
FIA approved seats are recommended. It is recommended
that seats be rigidly mounted to the
chassis at the base and seatback. If seat adjusters
are used they must be approved by GRAND-AM.
Single rail locking systems are prohibited. It is
recommended that adjustable seats incorporate a
structure or mechanism that provides lateral
stability to the seat at shoulder level in all fore/aft
positions.
15-1.9 The use of center and door side nets is required.
Only GRAND-AM approved mounting kits and SFI
37.1 Kevlar approved nets are permitted. The only
approved release mechanisms are the Safety
Solutions swing-close hasp and the Safecraft
“bullet” release. The Safecraft release may be used
in combination with the swing-close hasp. The
Safecraft 90-1000 Ratchet/Release may be used in
the center net position. The system must be dated
by the manufacturer and may not be used beyond
3 years from the date of manufacturer.
DP: Must use only constructor supplied installation
kits.
Net Installation: For seats without lateral head
supports the nets should be along the longitudinal
centerline of car. Net should be as close to helmet
as possible, with minimal angular divergence
permitted. For seats with lateral head supports the
installation is similar but net must be in contact with
head support and attached slightly inboard at the
rear so as to partially wrap around the support. The
nets should be installed with some tension. It is the
teams responsibility that the upper strap of net is at
or above center of gravity of helmet for all Drivers.
15-2 Fire Extinguishers – for GT, GS and ST (DP see the DP-
GCS)
15-2.1 It is required that all cars have a built-in fire extinguishing
system, minimum capacity 10lbs pounds
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(Halon 1211 or equivalent), with discharge nozzles
at the cockpit, fuel cell and engine compartment.
The actuator must be within the Driver’s reach. Fire
system must be mounted so the required gauge is
visible at all times. All cars must identify all extinguisher
and electrical cut off switches with
appropriate “E” and “Spark” decals. All cars are
required to have additional electrical and fire
switches located outside of the car on the cowl or
bodywork at the base of the Driver’s side “A” pillar.
15-3 Towing Eyes - All cars must be equipped with a strong steel,
steel cable, Kevlar rope or at least 6000 series aluminum,
clearly marked towing eye front and rear. The towing eye
must have an eye diameter of not less than 2” and not more
than 4” with a minimum thickness of 0.312”. Towing eyes
must be painted a contrasting color - red, yellow or orange.
15-4 Delphi Safety Light System - All cars must use the Delphi
Course Condition In Car Safety System. GRAND-AM will
supply each registered car with the receiver. The wiring
harness is available for purchase. The system must be
installed per the provided directions, including mounting of
the antenna externally. The receiver and complete mounting
bracket must be installed as a system, once issued by
GRAND-AM, the system remains the property of GRAND-AM
at all times. If not returned upon GRAND-AM’s request, the
Entrant will automatically be fined $2000 for replacement. All
cars must have the system functioning before any Session.
15-5 In-Car T.V. Camera. All DP and GT cars must mount on their
roof either an actual in-car camera or the in-car camera
replacement dummy unit. The unmodified dummy unit must
be mounted on the opposite side of center-line of the car
from the Driver 12.5” rearward of the trailing edge of the
windshield and 4.5” off of the centerline of the roof or as
approved by GRAND-AM. Each dummy unit is dimensionally
identical to an actual camera unit. The dummy unit is available
in advance from BSR as part # BSR.CP.2004 (Contact
BSR, 704-795-0901) or is available at the track from the
RPXpress or CV Products trailers.
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SECTION 16 - FINAL TEXT
16-1 Final Text - The final text is the GRAND-AM Road Racing
Association Regulations, which will be used, should any
dispute arise over their interpretation.
SECTION 17 - ROLL CAGE DIAGRAM
17-1 EXHIBIT #1 - EXPLODED VIEW OF BASIC ROLL CAGE
(SOME BARS REMOVED FOR CLARITY)
SECTION 18 - WINDSHIELD BRACE DIAGRAM
18-1 EXHIBIT #2 - GT WINDSHIELD BRACE MINIMUMS ARE
AS FOLLOWS:
Minimum 1/2” angle or 1/2” tubing, aluminum or steel.
Bottom must be bolted to firewall or cowl, or welded to roll
cage structure. Top to be attached to roll cage at roof bar #3.
Minimum spacing between braces is 8”.
Top to be attached p to roll cage at roof g bar #3
Minimum sp
Minimum spacing between braces is 8"
79

DAYTONA PROTOTYPES REGULATIONS
81

GRAND-AM DAYTONA PROTOTYPES
SECTION 1 - INTRODUCTION
1-1 Classifications - GRAND-AM has developed these specifications
for competition automobiles that will participate in
the “Daytona Prototypes or “DP” class.”
1-1.1 DP cars are closed-cockpit, mid-engine automobiles,
with a complete frame (non-stressed engine).
1-2 Competition -
1-2.1 DP cars will compete in a single classification in the
GRAND-AM Rolex Sports Car Series.
1-3 Eligibility –
1-3.1 Generation 1 (Gen1) and Generation 2 (Gen2)
Daytona Prototype cars are eligible to compete until
12/31/13 in their approved configuration. Only
chassis of currently approved Daytona Prototype
Constructors are eligible for conversion to
Generation 3 (Gen3) specification. The only
approved constructors of Daytona Prototype
chassis for the 2013 season are:
Riley –Bill Riley
704-526-8758
Bill.riley@rileytech.com
Dallara – Luca Bergianti Coyote – Eddie Cheever
003-938-07075496 317-713-3191
L.Bergianti@dallara.it eddie@cheevergroup.com
1-4 Daytona Prototype Gen1, Gen2, and Gen3 -
1-4.1 Gen3 Daytona Prototypes are defined as those built
to the 2012 Daytona Prototype Constructors
Manual first issued on March 31, 2011 and subsequently
updated.
1-4.2 Effective at the beginning of the 2012 racing
season, all Daytona Prototypes (Gen1, Gen2, and
Gen3) will be subject to aerodynamic evaluation
and will have a specific Permitted Aerodynamic
Specification (PAS) defined. The current PAS for all
DP manufacturers will be posted on the GRAND-
AM competition website.
1-4.3 The PAS for each D P manufacturer shall specify
exact components and permitted settings for
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components and systems that are judged by
GRAND-AM to be relevant to the aerodynamic
performance of the car. The current defined PAS
shall supersede any other allowances in the DP
regulations.
1-5 Additional Specifications -
1-5.1 Additional specifications respective to the
constructor and/or engine of the car shall be listed
in the Specific Car Regulations (“SCR”) which can
be obtained by GRAND-AM Headquarters or found
under the rules and regulations section of the
GRAND-AM competitor website.
SECTION 2 – BODYWORK
2-1 Bodywork -
2-1.1 The bottom of the car must be flat from the front
bulkhead to the rear axle centerline and the full
width of the bodywork, side to side with a tolerance
of +.25 -.00”.
Rub blocks may be added to the underside of
the flat bottom behind the front axle centerline of
the car. There may be a maximum of 6 areas, each
3” x 3” to accommodate the installation of rub
blocks. The maximum thickness of the rub blocks
defined area is 0.250”. These rub blocks may
protrude below the minimum ground clearance
requirement of 1.5”.
The bodywork between the front and rear wheels
below the axle centerline may be moved inward to
a minimum overall width of 77” exposing the flat
floor (reference plane) to a maximum of 1” on either
side. Add on components in this area are prohibited.
2-1.2 The underside of the flat bottom shall serve as the
reference plane for all subsequent measurements
unless otherwise specified.
2-1.3 No sprung part of the car is permitted below the
reference plane, except the rub blocks referred to in
Section 2-1.1.
2-1.4 Bodywork must fully cover the circumference of all
of the wheels and tires above the axle centerlines,
as viewed from above, and all other mechanical
components, except the radiator.
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2-1.5 The area directly behind the frontal projection of the
rear tires may have aero devices added respecting
all other originally approved dimensional body
regulations. Such devices are not permitted for
Gen3 DPs. Bodywork shall not be modified in any
way. A maximum 60 sq. in hole is permitted in the
bodywork under the tail light and directly behind
the frontal projection of the rear tire.
2-1.6 No ducts or openings are permitted from the front
wheel well /arch to the engine/ main roll hoop bulkhead
along the vertical side of the car and, below a
longitudinal plane of 20” above the flat floor reference
plane. A single duct sized 6 inches by 12
inches is permitted in a location behind the
engine/main roll hoop bulkhead below the 20 inch
reference. This duct is permitted on either side of
the car.
2-1.7 The only air permitted to pass through the inside of
the car from the dash bulkhead to the engine/main
roll hoop bulkhead, may only pass in an area above
the side pod structure(s) or via the approved Gen3
side exit duct if present.
2-1.8 The rear engine bulkhead separating the driver
compartment from the engine compartment must
be maintained with no holes or openings of any
kind.
2-1.9 Wheel wells/arches must be complete and remain
open as viewed from the side. Wheel well
covers/doors are prohibited. No modifications of
any kind may be made to the wheel opening
design, as delivered by the constructor.
2-1.10 Mirrors. All cars must be equipped with 2 functional
outside/A-pillar/front fender rear view mirrors that
are of a minimum dimension of 2 5/8” X 5 5/8”. An
open unobstructed area measuring 7” X 11” (with a
1” chamfer on each corner) must be maintained
from the mirror to the rear of the car.
2-1.11 All cars must have a transparent polycarbonate rear
window above the engine compartment with a
minimum size of 865 sq. in. for Gen2 and 700 sq. in.
for Gen3. A maximum of 2 flush NACA ducts may
be installed in the rear window. They must be
transparent if they are required to achieve the
minimum visible area rule, and they may be opaque
if other areas are available to achieve the requirement.
These may be used to duct intake air in or out
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of the engine compartment The maximum size of
each duct is 10.5” wide x 19.0” long if a single duct
is present and 9.0” wide x 12.0” long if 2 ducts are
present.
2-1.12 Rear Spoiler. An adjustable rear lip spoiler may be
added to the rear of the approved bodywork
provided it complies with the dimensional requirements
and for rearview mirror visibility. The leading
edge of the spoiler must not extend forward of the
leading edge of the rear wing. No air may pass
under the bottom side of the spoiler. For Gen3 DP
cars, detailed spoiler rules may be specified that
prohibit any deviation from the approved configuration
and that provide for deviation from the rear
overhang rule herein. Rear spoilers, or any added
rear spoiler wickers may not be slotted to accommodate
interference with the rear wing end plates.
(Note) The regulation permitting the wing end plate
to be trimmed and the mirror visibility limitations
define the maximum size wicker/spoiler angle
combination.
2-1.13 Each registered DP car may utilize the complete
original approved bodywork or the complete new
approved 2012 bodywork. Once a team has
declared which bodywork they will utilize in a
season they may not change from the declared
bodywork.
2-1.14 Riley Technologies Gen 2 DP cars are required to
use the wide rear engine cover deck lid.
2-2 Headlights and tail/brake lights are required and must be
operational at all times.
2-2.1 Additional driving lights are permitted.
2-2.2 The primary head and tail-light of the engine manufacturer
may be original, replacements of the same
dimension, or represented by a GRAND-AM
approved decal of the same dimension and shape,
so long as fully functioning lights are maintained
within the lens/decal area. Headlight and taillight
shapes and sizes must come from the engine
manufacturer’s current road car catalog. Primary
headlights must be located forward of and
outboard of the inner edge of the front tire. Brake
lights and taillights must be located above the rear
axle centerline and aft and outboard of the inner
edge of the rear tire.
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2-2.3 A high intensity red rear rain light (minimum 21 watt)
must be mounted in the center rear of the car.
2-2.4 Headlamp and tail lamp changes must be approved
by GRAND-AM.
2-3 Aerodynamic Devices – Ducts – Vents - Louvers
2-3.1 Any air intake ducts/openings in the exterior bodywork
must duct all air directly to the brakes,
through a cooler or directly into the engine
compartment intake or cockpit, These ducts may
also, exhaust air from the cockpit except as specifically
approved for Gen3 DP cars. Additional
ducting may be added to the door windows for
driver cooling, subject to GRAND-AM approval.
2-3.2 The engine water radiator must be mounted
forward of the front bulkhead, and must exhaust the
hot air out of the bodywork forward of the windshield.
The radiator may be visible when viewed
from above.
The radiator exhaust duct area may be adjustable
in length but may not extend beyond the original
body contour or be visible in side profile. A 0.500”
gurney may be added to the radiator exhaust duct
area. Any added material must be painted to match
the car color.
2-3.3 Engine air intakes may only be located rearward of
the side door window and located below the plane
of the roof. The intake may also extend outwards
from the vertical bodywork plane no more than 3”
and be an integral part of the bodywork. Inlet air
may also be ducted through clear NACA ducts in
the rear window as described in Section 2-1.11.
2-3.4 Roof air inlets, or snorkel scoops are prohibited. A
maximum of 2 vents, each a maximum size of, 11
square inches, may be installed in the roof for
exhausting air from the cockpit.
2-3.5 Rear Wing. The rear wing and end plates must be
the 2011 Crawford Composites Rear Wing and End
plates (“Spec Wing”) as delivered with no modifications
and mounted at the rear of the car.
• The Spec Wing must be, 72” wide.
• A maximum .750” wicker is permitted.
• The Spec Wing must be mounted so that no
part of the wing or wicker is higher than 41”
above the reference plane and so that no part
of the wing extends beyond the perimeter of
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the car as viewed from above, or as specified
in the PAS.
• The Spec Wing must be mounted symmetrical
to the centerline of the car.
• The Spec Wing rear wing end plates must be
mounted using the provided holes and slots
and must be oriented such that the top edge
is horizontal +/- 1 deg. The height of end plate
may be trimmed as necessary (to a minimum
dimension of 11 5/8”) to accommodate
approved rear spoiler angle adjustments. End
plate may be higher than the 41” from reference
plane dimension. The finish on the outer
side of the wing end plate may be painted or
wrapped: the inboard side of the end plate
may not be altered/painted/covered (including
tape) in any way. Removable die cut vinyl
sponsorship decals may be applied with the
approval of GRAND-AM.
• The Spec Wing must use the standard wing
support mounting position as specified and
approved by the supplier.
• Wing supports are to be made of flat
aluminum or steel plate as submitted by the
constructor and approved by GRAND-AM.
• The Spec Wing may not be adjustable from
inside the car.
Wings may not be painted or covered in any
way. Removable die cut vinyl sponsorship
decals may be applied with the approval of
GRAND-AM. Contact Crawford Composites at
704-483-8726. CCDP 412W (Wing with end
plates and gurney, GRAND-AM Daytona
Prototype, carbon/autoclaved).
2-3.6 Louvers. Louvers above the front wheels/tires are
required with a minimum of 30 sq. in. of opening.
The louvers must not protrude more than 1” above
the bodywork and no mechanical components
(including the tires) may be visible when viewed
from above (or perpendicular to the radius if on a
curved surface).
2-3.7 Front Spoiler. Front spoiler/splitter may be used.
The maximum spoiler/splitter length is 4” from the
approved body work as viewed from above,
respecting all dimensions. G3 cars will have a
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specific approved splitter shape which may be up
to 5.0” from the approved bodywork in some cases.
• A single splitter with underside shape is
approved by GRAND-AM for each type of
chassis constructor.
• Alternative-configuration devices such as
blockers and/or turning vanes are specifically
approved by GRAND-AM for each chassis
constructor. No modification to these specific
approved components is permitted.
2-3.8 Wheel Wicker. A single wheel wicker on the leading
edge of the front wheel opening may be added to
each side of the car to a maximum height of 13” off
the measuring (scale platform) surface.
2-3.9 A single add-on dive plane may be added to each
side of the car in front of the front wheel centerline
to a height of 13” off the measuring (scale platform)
surface and no further inboard than the frontal
projection of the front tire.
• Dive planes will be described as a single plane
of a consistent thickness. Curved surfaces are
not permitted.
• The dive plane may have a vertical surface only
to attach the dive plane to the bodywork. Dive
planes must be installed at an angle no greater
than 75 degrees and no less than 25 degrees.
Dive planes maximum length is 4” from the
approved body work as viewed from above and
must be compliant with all other requirements
and dimensions of the DP. Gen3 is as specified
in the PAS.
2-3.10 Rear Dive Planes. Up to 2 rear dive planes may be
added to the rear of each side of the car. The rear
dive plane(s) may be curved. The rear dive plane(s)
may not have end fences. The dive plane may have
a vertical surface only to attach to the body work.
Gen3 is as specified in the PAS.
SECTION 3 - WEIGHT
3-1 Minimum Weight - Minimum car weight, per engine
displacement, less fuel and driver race ready.
Minimum weight for cars 4.0 liters or more, 2325 lbs
Minimum weight for cars under 4.0 liters, 2275 lbs
3-1.1 The use of titanium is prohibited except for engine
valves and valve spring retainers.
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3-1.2 The use of magnesium is prohibited.
SECTION 4 - ENGINE ELIGIBILITY AND MODIFICATIONS
4-1 Eligibility - GRAND-AM will regulate engines as follows -
4-1.1 The eligible engines will be determined, selected,
and approved by GRAND-AM and listed in the
SCR. To be approved, an engine must be submitted
to GRAND-AM for testing and analysis. Upon
approval, GRAND-AM will specify components and
performance levels in the SCR that must be strictly
adhered to.
4-1.2 All engines must be production-based engines
(changes in bore and stroke or other specifications
may be required by GRAND-AM in some circumstances).
4-1.3 Maximum engine RPM, throttle body size/diameter,
valve lift and size, and maximum compression ratio
will be specified in the SCR. Engine air box and air
inlet restrictions may also be required.
4-2 General Engine Requirements
4-2.1 Engines must be normally aspirated.
4-2.2 Cylinder heads must retain the same number and
location of intake and exhaust ports, valves, spark
plugs, and camshafts (if used) as the production
engine. Valve location, valve size (engines
exceeding 4.35L) and angles must remain stock as
on the approved production heads. Intake/exhaust
porting and polishing is permitted as specified in
the SCR DP Engine list.
4-2.3 Normal blueprint machining may be performed on
the engine components. The stock production
block and cylinder heads must be used, unless an
alternate has been approved. Production bore size
with a maximum of .030” overbore is permitted.
4-2.4 The use of titanium or ceramic engine components
is prohibited except for titanium valves and titanium
valve spring retainers.
4-2.5 The following items may be replaced with aftermarket
components - steel crankshaft, steel rods,
round aluminum pistons, titanium or steel valves,
steel valve springs, camshafts, cam followers,
timing chain/cam drive and dry sump oil pump and
system. Replacement items must be readily available
to all Competitors.
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4-2.6 The intake system (manifold and/or throttle body),
unmodified, as on the originally approved and
tested engine must be used. Actual pieces, engineering
drawings, CAD files, and photographs will
be used to determine standard compliance.
4-2.7 The exhaust is free except - Exhaust system must
be of round or oval tubing and must exit at the rear
of the car, below the rear valance.
Exhaust system must remain within the perimeter
of the bodywork when viewed from above. Variable
exhaust systems are prohibited.
4-2.8 Engine Air Box – The complete engine air box
and/or cool air induction system to the air box must
be approved by GRAND-AM.
4-2.9 All teams, with the assistance and coordination of
the engine builders or manufacturer must ensure
that there is at least 1 shipping crate available at
each Event capable of transporting their engine,
exhaust headers and engine air inlet system to a
testing facility of GRAND-AM’s choosing.
4-3 Detailed Engine Requirements -
4-3.1 6 or 8-cylinder engines up to 3.99 L are allowed
with unlimited compression and unlimited air inlet.
4-valve engines larger than 4.0L to 4.35L are
allowed a maximum compression ratio of 11:1.
Maximum RPM and maximum valve lift will be listed
in the SCR. Intake air restriction may also be
required.
4-valve engines larger than 4.35L to a maximum of
5.0L are allowed a maximum compression ratio of
11:1 and a maximum cylinder bore of 3.720”.
Maximum RPM and maximum valve lift will be listed
in the SCR. Intake air restriction may also be
required.
Engines over 4.5L in displacement must run a five
speed transaxle.
2-valve engines up to 5.0L are allowed a
maximum compression ratio of 11:1 and a
maximum cylinder bore of 4”. Maximum RPM and
maximum valve lift will be listed in the SCR. Intake
air restriction may also be required.
4-3.2 All DP cars must use the GRAND-AM Spec Bosch
ECU and Wiring Harness (“Spec ECU”). Each
entrant will be eligible to purchase 1 ECU, 1 engine
wiring harness and 1 chassis adapter harness at
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the discounted price. Spares are available on a
different price scale. Spec ECU and wiring
harnesses cannot be modified in any way.
SECTION 5 - DRIVETRAIN
5-1 Approved Models - GRAND-AM will specify the manufacturers
and approved models of transaxles in the SCR.
5-1.1 Limited slip differential will be allowed as follows;
either a non-ramp type, limited slip, clutch plate
differential or a ramp type differential will be utilized.
Only the approved ramp angles will be permitted.
The ramp angles will remain equal for all approved
transaxles. The only ramp angles that are approved
are 30/60 and 45/70. Ramps may be run in either
orientation. (Flipped around). There is no limit on
gear ratios. No suspension mounting points are
allowed on/to the transaxle case(s). All transaxle
units must include a GRAND-AM approved
transaxle/suspension plate.
5-1.2 DP cars are allowed to use the following externally
adjustable differential kits. Xtrac # 386-981-002A,
EMCO # 469771 and Hewland NLT-212.
These cannot be modified from their original configuration.
5-2 Clutch/Flywheel – Flywheel must be steel. Clutch must be a
heavy-duty multiple-disc type, using 3 or more metallic discs
with a minimum diameter of 5.5”. Carbon clutches are
prohibited.
5-3 Maximum forward gears - A maximum of 5 forward gears
are allowed for car with engines over 4.51L. A maximum of 6
forward gears are allowed for cars with engines up to 4.5L.
5-4 Sequential gear change - Mechanical sequential gear
change is permitted for approved drivers. 5-5 Gear ratios are
free.
5-5 Gear ratios are free.
5-6 Bell housing/Adapter Plate - The engine to transaxle
adapter plate must be made of steel or aluminum.
5-7 Axle Retention - The transaxle must be fitted with a
complete approved axle retention system, including the
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output flanges, tripod joints, axles and hub drive. The
approved axle retention systems are:
EMCO Gears, Inc. Pankl Racing Systems XTrac
703 South Girlschool Rd. 16615 Edwards Road 6183 West 80th Street
Indianapolis, IN 46231 Cerritos, CA 90703 Indianapolis IN 46278
317 243 3838 562-677-7254 317 472 2454
5-8 Attenuator – Each transaxle must be fitted with the Riley
Technologies rear transaxle attenuator mounted per the
manufacturer’s specifications. Contact - Mike Croake at
Riley Technologies, 704-663-6319 email -
mike.croake@RileyTech.com.
SECTION 6 - WHEELS & TIRES
6-1 Official Tire - The Official Tire Supplier for the DP class is
Continental Tire. Contact: Continental Tire by email:
www.continentalrace.com. Tire sizes are; Front 320/650-18;
Rear 325/710-18.
6-2 Tire Control – GRAND-AM will determine the number of
Sets permitted for Event based on the duration of each
Event. Each registered car will supply serialized or marked
wheels to the Official Tire Supplier to facilitate mounting and
balancing prior to their first Event. Competitors must identify
wheels with a permanent car number on the wheel center.
The Official Tire Supplier will bring their mounted tires and
wheels to the Event ready for use. Competitors must return
their tires and wheels to the Official Tire Supplier within 1
hour of the conclusion of each Event. Competitors will be
allowed to retain 1 Set of designated set-up tires in their
possession at all times. If a Competitor wishes to reuse any
tires they will be marked accordingly and returned at the next
Event and will become part of the allotment.
6-2.1 Tires are allotted to specific cars numbers and
cannot be used by another car under any circumstance
and must be mounted to the numbered
wheels for that car. Any car found to be using a tire
allotted to another car will be immediately excluded
from the race.
6-2.2 24 hours: Limited to 32 Sets of dry tires.
6-2.3 Wets: Competitors are encouraged and allowed to
keep 1 or more Sets of wet tires in their possession.
6-2.4 Tire and wheel exchange: If for any reason a
Competitor does not return all the tires to the
Official Tire Supplier at the conclusion of the Event
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their allotment of tires for the next Event will be
limited. For instance if a Competitor is 4 tires short
on the return they will be docked 8 tires from their
allotment for the Event.
6-2.5 Damaged wheels: Wheels that have been
damaged at the Event should be dismounted and
replaced if possible. Competitors will be notified of
any wheels received damaged at the Official Tire
Suppliers facility and will be responsible for their
replacement.
6-3 Tire Testing - GRAND-AM will authorize the sale of specially
marked tires but the Official Tire Supplier, for independent
testing on the following basis.
6-3.1 On an individual case-by-case basis following a
written request from the team/constructor for the
purposes of testing new drivers, shaking down new
cars for customers, GRAND-AM approved media
events, new customer introductions or other
special cases. GRAND-AM will be the sole entity
deciding on these cases and the decision will be
final.
6-3.2 All tires authorized for independent testing and/or
on GRAND-AM test days cannot be used for any
session during an Event.
6-3.3 All test tires must be returned to the Official Tire
Supplier prior to picking up race tire Sets.
6-3.4 Each DP Entrant is specifically prohibited from any
independent testing without GRAND-AM’s prior
knowledge and approval. This includes all forms of
testing whether it is on track or off. GRAND-AM
may specify official track tests during the course of
the season. All testing must be conducted on the
series approved tires as delivered by the Official
Tire Supplier.
6-4 Wheels -
6-4.1 All wheels must be 18” diameter and permanently
marked on the wheel centers with the number of
the car they will be used on.
6-4.2 Maximum complete wheel/tire cross-section width
is 14”.
6-4.3 Wheel offset is free.
6-4.4 Wheels must be of an approved 3-piece design.
BBS and Forgeline are the only approved wheels.
Front - Maximum 12.5” bead width permitted.
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Rear - Maximum 13” bead width permitted.
6-4.5 Single wheel minimum weight
Front – 22.5 lbs.
Rear – 23.5 lbs.
SECTION 7 - SUSPENSION
7-1 Design - Suspension must be 4-wheel independent design,
with only 1 spring and 1 shock absorber per wheel permitted.
The spring must be on the shock absorber (coil over style). A
3rd spring is prohibited. Bump rubbers or packers are
permitted. All suspension components must be used as they
were delivered or updated by the constructor.
7-2 Rear Suspension - All rear suspension and coil over
mounting/pickup points must be to either the main chassis
framework, the engine bell housing/adapter plate and/or the
transaxle/suspension mounting plate. Suspension mounting
points are permitted on the transaxle case.
7-3 Active Suspension is prohibited.
7-4 Shock Absorbers – Only GRAND-AM approved make and
model shock absorbers may be used. All shocks must be the
same as the GRAND-AM sample shock.
7-4.1 Approved brands and models
– Dynamic Suspension DSSV
– Penske 8760
GRAND-AM will maintain checking components in
order to verify compliance and identical configuration;
it is the Competitor’s responsibility to verify
that their units are exactly the same as the GRAND-
AM checking pieces in all regards.
Competitor modifications to or fabrications of
complete damper components that are not
produced. The following exceptions apply:
1. Oil bleeding vacuum machine port addition to
shaft bearings (Penske)
2. Machining of piston ID from .500 to .625 (to
accept Penske decoupled top-out plate
assembly AS-DCP454 or Digressive Blow-Off
Components P-DIG-A and PI-DIG-B).
Parts lists will be posted on GRAND-AM website.
7-4.2 Maximum 3-way adjustment with 1 remote canister
is permitted.
7-4.3 Cross-connected shocks are prohibited.
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7-4.4 Spring and shock absorber adjustment from inside
the cockpit are prohibited.
7-4.5 Hydraulic ride height adjustment of any kind is
prohibited. Any form of driver controlled ride height
adjustment is prohibited.
7-4.6 Driver adjustable front and rear anti-roll bars are
permitted. The adjustment mechanism may only
consist of mechanically operated levers acting on
“blade” type adjusters or connector links moving on
the length of the anti-roll bar “leg” or “arm”. When
used, Anti-roll bars must be connected to the
suspension by a solid link. Links may be adjustable
in length but must be a fixed length during on-track
operation. The use of heim joints will be permitted.
No preloading of anti-roll bars will be permitted.
SECTION 8 - CHASSIS /BODY Dimensions
8-1 Basic Dimensions -
8-1.1 Overall length - 175 to 180”.
8-1.2 Overall width - 77 to 79”.
8-1.3 Overhangs - Front; maximum 36” total, including a
maximum of 4”of splitter length. Rear; 32 to 34”,
measured from the axle centerlines.
8-1.4 Overall height - Minimum roof height 41”, measured
from the reference plane.
8-1.5 Minimum ground clearance - 1.5”.
8-1.6 Additional chassis structure or reinforcement may
be added to the approved chassis design.
8-1.7 The #2 floor section (center engine compartment)
may have up to 400 sq. in total of flush opening (no
protrusions on the inner or outer surface of the floor
panel) symmetrical around the centerline of the car.
8-1.8 It is recommended that the driver’s compartment
foot well have an additional metal floor above the
“reference plane” floor to protect the driver’s feet
and legs in the event of damage to the original floor.
8-1.9 The front floor may not project forward of the front
bulkhead section.
Riley cars may use L09-100C-REP for front floor
repair.
SECTION 9 - BRAKES
9-1 Brake rotors must be made of magnetic cast iron or cast
steel (ferrous) material. Maximum size - thickness 1.42”
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(36mm) X 14” (355mm) diameter. Minimum of 48 cooling
vanes in the rotor are required.
9-2 Calipers - Only GRAND-AM approved brake calipers of
aluminum construction are permitted – Only 1 brake caliper
with a maximum of 6 pistons per wheel is permitted.
Maximum/Minimum front caliper stack width is
96mm/88mm, minimum rear caliper stack width is 83mm.
Approved caliper list is available from Headquarters or
GRAND-AM.com.
9-3 Brake hat material must be aluminum or steel alloy. No titanium.
No gear driven hats. Hat offset is free.
9-4 Brakes for 24 hour endurance races are per Section 9.1,
Section 9.2, and Section 9.3.
9-5 For all events except for 24 hour endurance Events,
complete brake systems for the DPclass will be specified
and may only be used in the as-produced configuration from
the approved manufacturer. The following specific approved
brake components, by manufacturer part number, will be
permitted:
Manufacturer Front Caliper Front Rotor Rear Caliper Rear Rotor
Alcon CAR9549Z55DSLT/RT DIV2199X270C48L/R CAR8040E01DSLT/RT DIV2198X431
AP CP5056-2/3S7MP CP5772-1150/1 CP6070-2/3S7MP CP3870-1130/1
CP6078
CP6470
Brembo
XA6.61.21/249 Forged
XA4.F1.01.04 Sm. Piston
XA3.02.31/32 Lg. Piston 09.a026.13/23 X9.060.53/54 09.a.9226.10/20
PFC 26.378.410.410.11/12 355.32.0051.45/46 22.355.290.365.11/12 328.32.0049.47/48
Note: All front and rear brake rotors must be of the same
manufacturer. Any combination of rotors and calipers are
accepted.
SECTION 10 - FUEL SYSTEM
10-1 Specification - DP must use a safety fuel cell meeting FIA FT
3.5 or FIA FT-5 specifications. All fuel cells must be approved
by GRAND-AM.
10-1.1 All rubber bladders must have a printed code
naming the manufacturer, the specifications to
which the tank has been manufactured and the
date of manufacture.
10-1.2 The fill tube from the cover plate may extend no
farther than 6” into the enclosed volume of the top
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of the fuel cell bladder. The fill tube cannot enter the
fuel cell below a point 13” above the bottom of the
fuel cell. The fill tube must be straight and may not
have any swirl pots, diffusers or any other augmentation.
The fuel cell fill/cover plate must be
removable for inspection.
10-2 Location -
10-2.1 The fuel cell and lines must be sealed from the
engine and cockpit compartments.
10-2.2 The fuel cell compartment must have an easily
accessible panel located on top of the car above
the cell, through which fuel cell inspection and
capacity checks, and/or fuel samples may be
made.
10-3 Fueling - A twin probe dry brake fueling/vent system with the
ability of changing from the right to the left side of the car
must be installed on a metal plate firmly attached to the main
roll bar of the car.
10-4 Fuel Capacity – Maximum onboard fuel capacity is 20 U.S.
gallons for the Rolex 24. For the remainder of the 2013
season fuel capacity is 18.5 gallons.
SECTION 11 - TELEMETRY/DATA RECORDING
11-1 Data Recorder – Each car must have installed only an EFI
Level 4, Motec ADL, ADL2, ADL3, or Bosch GRAND-AMspecified
data recording system and optional telemetry
system. GRAND-AM reserves the right to view any/all data
collected by a team/entrant at anytime. GRAND-AM specified
Bosch Data systems are permitted. The spec ECU/Data
logger must always have a 128 Mb or larger Bosch memory
card installed during a race or qualifying. Data cards cannot
be removed from the car without permission from a GRAND-
AM Official. Data card cannot be erased without permission
from a GRAND-AM Official. Pitot tubes are permitted.
SECTION 12 - IDENTIFICATION
12-1 Car Identification - DP previously registered with GRAND-
AM shall be identified first by the name of the engine
manufacturer and then by the Constructor. Gen3 cars may
have a specific name issued by the OEM and the chassis
Constructors name is not required.
97

12-2 Engine Identification - If engine manufacturer is approved
for Manufacturers Championship the name of the engine
manufacturer, or the term “powered by” (the name of the
engine manufacturer) must be displayed across the upper
portion of the windscreen with the manufacturers name in
letters at least 6” high. Additionally, the same term (or name)
or manufacturer's logo must be displayed in a prominent
location, on the centerline of the car at the front and on each
side of the engine cover rearward of the side window openings.
Minimum size: 32 sq. inch. If engine manufacturer is
NOT approved for the Manufacturers Championship, the
vehicle is required to display a GRAND-AM supplied windshield
banner on front windscreen.
SECTION 13 - SAFETY EQUIPMENT
13-1 Fire extinguishers –
All DP must utilize a GRAND-AM approved dual fire extinguisher
system. The system must consist of separate fire
bottles for the engine/fuel compartment and for the cockpit.
The cockpit system must consist of a 2 ½ lbs. minimum
capacity FE-36 bottle. The actuator for this bottle is to be
mounted within reach of the driver when fully strapped in.
Triggering is by means of a PULL actuator. The engine
compartment system consists of 10 lbs. minimum capacity
bottle of either Halon 1211 or FE36 with a remotely mounted,
286 degree Fahrenheit, fast response, thermal sensor and
optional cable mounted manual override, the thermal sensor
and nozzle must be mounted to the firewall above the fuel
cell per the supplier’s recommendations. The optional
manual override cable must be PULL actuated and mounted
within easy reach of the driver when fully strapped in. Only
approved supplier components may be used. All system
components must be used and serviced per supplier’s specifications.
No other system or extinguishing agents are
approved. The fire system must be mounted so the mandatory
gauge is visible at all times.
Approved Suppliers are:
Firefox Industries
3243 Old Frankstown Rd.
Pittsburg PA 15239
724.733.3936 James Zwergel
and
98

Safecraft Inc.
5165-C Commercial Circle
Concord ,CA 94520
925.405.0307 Steven Baker
13-2 Wheel Tethers -
It is mandatory that all DP cars have the front and rear
uprights linked to the frame using Vectran HS V-12 fiber
cables (tethers) available from CV Products. On the chassis
end the tether must either loop around a chassis tube or be
otherwise securely retained. On the upright end the tether
may be looped through openings in the upright or captured
by a substantial bolt-on structure or a dedicated mounting
loop attached to the upright. These attachments must be as
designed by the constructor and approved by GRAND-AM.
Tether attachment points may not be common with any other
suspension mounting points. Attachment should be secured
such that it exceeds the tensile strength of the tether. Each
constructor has available an all-inclusive kit containing all of
the components and installation instructions. The approved
kit must be used.
99

NOTES
100

GT REGULATIONS
101

GRAND TOURING GENERAL CLASS
REGULATIONS (“GT-GCR”)
General Class Explanation and Purpose
1-1. PURPOSE. The GT class is for purpose built, highly modified
versions of series produced automobiles. Cars in the GT
class
1. Have been in production for road use or meet homologation
criteria;
2. Have been for sale to the public in a regular dealer
offering in North America;
3. Are current productions models or no older than 3 years
after the end of production.
1-2. SPECIFICATIONS. GRAND-AM will list on the GRAND-AM
website, the approved cars and the Specific Car Regulations
for the GT class (“SCR”) according to the OEM’s make and
model designation. The SCR shall be part of the Regulations
and shall govern if a conflict between the GAR and the GT-
GCR occur.
1-3. CATEGORIES. The GT class will be comprised of 2 distinct
preparation methods (“Categories”), all designed to have
cars at a similar competition level for GT class racing.
1-3.1. Unibody GT (“Prep 1 GT”) – This category is
reserved for production cars with minor modifications.
1-3.2. Semi-Tube GT (“Prep 2 GT”) – This category is for
cars with modified production or tube-frame
chassis. They may be front-wheel drive cars
converted to rear-wheel drive or they may be cars
that require physical modifications to be competitive
in GT. Specified tube-frame construction is
permitted. Alternative engines from the original
manufacturer may be approved.
SECTION 2 - GENERAL ENGINE REGULATIONS
2-1 Eligibility
2-1.1 The eligible engines shall be determined, selected
and approved by GRAND-AM and listed along with
the engine specifications, specified components
and performance levels in the GT-SCR, which must
be strictly adhered to.
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2-1.2 To be approved, engines may be required to be
submitted to GRAND-AM for testing and analysis.
2-1.3 GRAND-AM may approve alternate engines from
the OEM's production car lines that are not originally
fitted to a specific model.
2-1.4 Turbo Charging – Eligible turbocharged or supercharged
engines are limited to production OE
engines delivered in a normal product offering at
automobile dealerships in the United States.
2-2 Engine Location must remain as approved.
2-2.1 (Prep 1) The engine may be freely located in the
original engine bay as long as no changes to the
cockpit dimensions are made. A stress mounted
engine installation is prohibited.
2-2.2 (Prep 2) The engine must be located in the original
engine bay/compartment. Front wheel drive cars
may reposition the engine to allow for rear wheel
drive installation.
Engine may be located so that the foremost spark
plug is no farther rearward than the front axle
centerline unless specified otherwise. The foremost
spark plug location is defined as the centerline of
the access hole in the valve cover or cylinder head
casting. A 1” maximum right side offset measured
from the front tread centerline is permitted.
Stressed engines are prohibited.
2-2.3 A Minimum 8” crankshaft centerline height is
required.
2-3 General Engine Requirements.
2-3.1 All engines must be production-based. (GRAND-
AM may require changes in bore and stroke or other
specifications in some circumstances.) GRAND-AM
may approve other engines.
2-3.2 Maximum engine RPM, throttle body size/diameter,
valve lift and size, and the maximum compression
ratio may be specified for each approved engine.
Engine air box and inlet air restrictors may also be
required.
2-3.3 It is mandatory for all major components and parts
to be available for sale to the general public in an
OEM’s regular product offering. GRAND-AM must
approve all components/parts prior to use in
competition.
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2-3.4 All approved components/parts and modifications
will be specifically listed for each eligible engine.
See GT-SCR.
2-3.6 All component parts must remain per GRAND-AM
specifications.
2-3.7 Cylinder heads must retain the same number and
location of intake and exhaust ports, valves, spark
plugs, and camshafts (if used) as the production
engine. Valve location, valve size and angles must
remain stock as on the approved production heads.
2-3.8 Normal blueprint machining may be performed on
the engine components. The stock production
block and cylinder heads must be used, unless an
alternate has been approved. Engine blocks are
permitted to be bored to a maximum of .030 over.
2-3.9 The use of titanium or ceramic engine components
is prohibited except when utilized in the original
production engine or as otherwise specified.
2-3.10 The following items may be replaced with aftermarket
components - steel crankshaft, steel rods,
round aluminum pistons, titanium or steel valves,
Titanium or steel valve springs/retainers,
camshafts, cam followers and rocker arms with
OEM ratio, timing chain/cam drive and dry sump oil
pump and system. Replacement items must be
readily available to all competitors.
2-3.11 Crank, rods and pistons must be of OEM weight
and dimension.
2-3.12 Variable valve timing and variable inlet systems are
prohibited.
2-3.13 Only a direct mechanical linkage between the
throttle pedal and the engine throttle control is
permitted. Production drive-by-wire systems may
be approved for specific models.
2-3.14 All lines containing fuel, oil or coolant within the
cockpit area must be armored lines.
2-3.15 All GT/GX cars that choose to use an aftermarket
ECU in lieu of the OEM ECU must use the SPEC
ECU and wiring harness as delivered by Bosch and
approved by GRAND-AM. Each entrant will be
eligible to purchase 1 ECU, 1 engine wiring harness
and 1 chassis adapter harness at the discounted
price. Additional spares are available at the nondiscounted
price. Spec ECU and wiring harnesses
may not be modified in any way.
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2-4 Exhaust Systems
2-4.1 The exhaust system must exit rearward of the door.
2-4.2 Side exhaust exits may be no higher than the top of
the rocker panel.
2-4.3 Exhaust system must remain within the perimeter of
the bodywork as viewed from above.
2-4.4 Variable exhaust systems are prohibited.
2-5 Cylinder Heads – Must remain as approved. Ports may not
be altered in shape, form or volume. Porting is prohibited.
2-6 Camshaft, Valve Lifter, and Rocker Arms - Must remain as
approved.
2-7 Intake Manifold -
2-7.1 The intake system (manifold, and/or throttle
body/air box) must remain as installed on the
approved engine.
2-7.2 OEM variable length inlet systems are not permitted
unless approved by GRAND-AM.
2-7.3 Internal coating or painting is not permitted.
2-8 Air Cleaner, and Air Intake -
2-8.1 Cowl or ram air induction is only permitted through
existing standard air intake areas of the bodywork.
2-9 Electrical System -
2-9.1 Must remain as approved.
2-9.2 Data Recorder – Each car must have installed only
an EFI Level 4, Motec ADL,ADL2, ADL3, or Bosch
GRAND-AM specified data recording system and
optional telemetry system. GRAND-AM reserves
the right to view any/all data collected by a
team/entrant at any time. GRAND-AM specified
Bosch Data systems are permitted. The spec
ECU/Data logger must always have 128 mb or
larger Bosch memory card installed during a race or
qualifying. Data cards cannot be removed from the
car without permission from a GRAND-AM Official.
Data card cannot be erased without permission
from a GRAND-AM Official. Pitot tubes are
permitted for data gathering.
2-10 Radiator – The water radiator must remain in the original
position. Installation of an expansion tank which is located in
the engine compartment is permitted.
105

SECTION 3 - CAR BODY REQUIREMENTS
3-1 Bodywork - (Prep 1)
3-1.1 The width of the bodywork across the front and rear
wheel arches may be increased symmetrically by a
maximum of 4” over the original stock production
bodywork by adding a maximum of up to a 2”
extension over the standard wheel arch. The total
width of any car modified this way is 74”. Vehicles
that are wider than 74” in standard configuration,
may modify the fenders for the fitting of required
wheels and tires, but CANNOT exceed the standard
configuration width.
3-1.2 Each car must have 2.5” minimum ground clearance.
3-1.3 Strengthening of the unibody chassis and bodywork
is permitted provided that the material used
follows the original shape and is in direct contact
with it.
3-1.4 Material used for replacement parts, hood, deck lid,
doors, roof, fenders, is unrestricted, but where a
panel is replaced, it must be attached in a way,
which is as strong as the original method.
3-1.5 Bodywork dimensions must remain as approved.
Molds for replacement body panels must be made
from the standard original panel. They must be a
direct replacement for the production part.
3-1.6 Specific mention of original approved dimensions
and equipment include, but are not limited to -
Chassis/bodywork must retain original height,
width, wheelbase, and front and rear overhang.
Wing mounting and profile, and the end plates must
lay on a single plane in front view (flat).
Nose (including splitter) in original configuration
must remain as approved.
Rocker panels, front and rear bumper, and fender
flares must remain as approved.
No other underbody aids are permitted.
3-1.7 No additional ducting or aero aids are permitted,
except as authorized by GRAND-AM.
Bodywork - Mounting type is free (screws, dzus,
cam-lock). Fasteners must be of the captive type.
Body gaps may not exceed ¼”. Hoods and deck
lids may not flex.
Nose screening may be extended to cover all
openings.
106

Ducting behind the nose in front of and below the
front wheel centerline is free.
Air jack port location is free.
3-2 Bodywork - (Prep 2)
3-2.1 The external shape and recognizable features of the
body must not be changed. The roofline, front and
rear window angles and shape must remain standard.
The original outer unibody may be duplicated
in composite material. Bonding of components will
be restricted to body panel to body panel, no other
bonding of components is permitted.
3-2.2 The firewall and cowl may be replaced with a steel
(0.035 minimum thickness) welded-in panel of the
same dimensions and placement as OEM. No air
may pass over, above or around the floor.
3-2.3 The floor pan from the firewall rearward to the rear
of the car and laterally from the inside of the rocker
panels and the rear wheel tubs may be modified or
replaced.
Floor pan height including rear floor kick-up must
remain similar to production.
The modified or replacement floor must be flat
with no ducts or tunnels permitted.
The floor pan from the firewall to the rear floor
kick-up must be steel (0.035 minimum thickness).
The bottom of the floor must be tangent to the
bottom of the rocker panels with the weld seam
removed.
3-2.4 The driveshaft tunnel may be enlarged for the
passage of the exhaust system, but no more than
necessary for the fitting of the system and any insulation
used.
3-2.5 The front frame rails may be modified or replaced
for permitted replacement suspension modifications.
The minimum replacement frame rail sizes
are 2 x 2 x 0.095 for stock car style kick-up frames
or 1 3/4 x 1 3/4 x 0.095 for double frame rail cars.
3-2.6 The rear frame rails may be modified or replaced for
allowed replacement transaxles and differentials
and for permitted rear suspension modifications.
Minimum replacement rear frame rail sizes are 2 x 2
x 0.095 for stock car style kick-up frames or 1 3/4
x 1 3/4 x 0.095 for double frame rail cars.
3-2.7 Replacement frame rails from the firewall to the rear
floor kick-up must be at least 2 x 2 x 0.095 for stock
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car style frames or 1 3/4 x 1 3/4 x 0.095 for double
frame rail cars.
3-2.8 The rear side of the main roll hoop may be mounted
no further rearward than the floor kick-up, perpendicular
to the floor or with no more than 10-degree
rearward incline. All required tubes of the roll cage
must be at least 1 3/4 x 0.095 DOM tubing.
3-2.9 Stock car frames are defined as having lower frame
rails with front frame rails kicked-up and rear rails
under-slung or kicked-up with an integrated roll
cage.
3-2.10 Double frame rail cars are defined as having upper
and lower frame rails with a roll cage affixed to the
top of the upper frame rail.
3-2.11 The width of the bodywork across the front and rear
wheel arches may be increased symmetrically by a
maximum of 4” over the original stock production
bodywork by adding a maximum of up to a 2”
extension over the standard wheel arch. The total
width of any car modified this way is 74”. Vehicles
that are wider than 74” in standard configuration,
may modify the fenders for the fitting of required
wheels and tires, but CANNOT exceed the standard
configuration width.
3-2.12 Each car must have 2.5” minimum ground clearance.
3-2.13 These modifications (3-2.11) must result in the
panel being as close to the original as possible in
appearance. (The hood, fenders, doors, and
trunk/deck lid must be able to replace a production
example and fit properly). Body gaps may not
exceed ¼”. Hoods and deck lids may not flex. The
only bodywork permitted is that approved by
GRAND-AM. Hood, doors and trunk must hinge as
per original location. Doors must retain original door
handles and latches.
3-2.14 The hood must use a minimum of 3 hood pins
mounted to the chassis or nose frame.
3-2.15 The rear deck lid must a minimum of 2 rear deck lid
pins mounted to the chassis or rear frame. Only the
approved front nosepiece is permitted.
3-2.16 Only a GRAND-AM approved front under tray with
tunnels or a flat bottom is permitted. This component
may not extend rearward of the leading edge
of the front wheel opening on front-engine cars.
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3-2.17 Front Bumper Nose Box assembly must be solid
mounted. Floating nose box is not permitted.
3-2.18 The rear of the car (the area surrounding the original
license plate area) may be vented a maximum of
100”2 and must be covered by a maximum 0.250”
mesh screen. Cars must have at least 2 original
production rear brake and taillights (red in color)
with a minimum of 1 each working at all times. No
rear under trays are permitted. The trunk floor must
surround the fuel cell at the production drop well
dimension using steel panels.
3-2.19 Right and left outside rear view mirrors are required.
The mirror housing must be identical to the production
mirror for the specific make and model as
entered.
3-2.20 A fully sealed steel engine firewall with a minimum
thickness of 0.035” is required and must extend all
the way down to the flat floor; no air may pass
over/above or around the floor.
3-2.21 A fully sealed steel rear firewall with a minimum
thickness of 0.035” is required separating the
driver/passenger compartment from the fuel cell
area. Floor to roof bulkheads are not permitted.
3-2.22 Interior panel material is free.
3-2.23 One NACA duct per side, painted to match the car
may be installed anywhere in the bodywork rearward
of the door number area.
3-3 Dash/Installed Components - Must remain as original or
may be replaced with an updated instrument cluster. Gauges
are free. It is permissible to move dash rearward in Prep 2.
3-3.1 The dash pad must be identical to the production
dash pad in shape.
3-3.2 Driver seat location must remain on the original
longitudinal centerline and no further rearward than
the back of the original front seat reclined at 20
degrees.
3-4 Windows –
3-4.1 Windshield may be replaced with a standard reproduction
at least 0.250” thick, of hard-coated
polycarbonate. Refer to the GAR 2-6.
3-4.2 A minimum of 3 metal reinforced braces inside the
windshield are required on all vehicles. Minimum
dimension .5” (angle or tubing) and minimum
spacing 8” between the braces. Top of braces must
109

e attached to the roll cage at the roof bar #3.
Bottom of braces must be attached to roll cage
dashboard bar #8, bolted to the cowl or firewall or
other attachment as approved by Officials.
3-4.3 NACA ducts for driver cooling may be used in side
windows.
3-4.4 Rear and rear quarter windows may be replaced
with a standard reproduction at least 0.125” thick
polycarbonate. The rear window must be secured
on the outside with at least 2 metal straps 1” wide
by 0.1875” thick. The rear window may have up to
(5) 1.5”X 5” oval shaped holes for the purpose of
exhausting air from the interior of the car. These
holes must be spaced symmetrically across the car.
3-4.5 Door windows are not permitted, except a triangular
clear polycarbonate single plane panel in the
front of the driver and passenger door window. The
triangle’s bottom length may be a maximum of 27%
of the original opening. The rear edge of the panel
must be 90 degrees to the bottom edge.
3-5 Floor -
3-5.1 The floor pan, from the engine firewall rearward and
laterally from rocker panel to rocker panel, must be
the original or a flat replacement with no ducts or
tunnels. Floor paneling forward of the engine firewall
is not permitted. The floor pan under the driver
from the engine firewall to the main roll hoop must
be steel with a minimum thickness of 0.049. All
replacement floors must retain original configuration
with foot wells and kick ups in their original
location. Passenger floor may be raised no higher
than the top of the door sill to accommodate
exhaust only. Between the front and rear axles the
floor must remain as approved - ref. Bodywork-
(Prep 2) section.
3-5.2 The floor pan must produce a uniform, solid, hard,
continuous, rigid (no degree of freedom in relation
to the body/chassis unit), impervious surface,
under all circumstances.
3-5.3 No sprung part of the car is permitted below the
floor pan.
3-5.4 No air may pass above this surface. Circular openings
are permitted for the use of air jacks. These
openings must seal to the air jack body.
3-5.5 Flat add-on floor or rear diffusers are prohibited.
110

3-6 Rear Wing - A single-element The GRAND-AM Spec rear
wing and end plates are supplied exclusively by Crawford
Composites are required. A maximum 0.75” wicker is
permitted. The end plates must lay on a single vertical plane
in front view. Contact Crawford Composites at 704-483-
8726.
3-6.1 The Spec wing endplates must be at least 2” from
the body and the wing mounts must be at least 12”
in from each end of the wing. Wing end plates may
be repositioned on the ends of the original wing end
mounts, such that they cover the wing end cross
section. The end plates must lay on a single vertical
plane in front view.
3-6.2 Complete wing, endplates and wickers must be a
minimum of 2” below the roof, unless otherwise
specified.
3-6.3 The complete wing must not exceed the rear-most
perimeter of the bodywork when viewed from
above.
3-6.4 The finish on the outer side of the wing end plate
may be painted or wrapped provided the inboard
side of the end plate is not altered/painted/covered
(including tape) in any way. Removable die cut vinyl
sponsorship decals may be applied per the
approval of GRAND-AM.
3-7 Front Splitter/Air Dam -
3-7.1 The stock front unmodified valance/fascia must be
used. A horizontal splitter may be added to the front
of the car to a maximum of 2” forward of the car as
viewed from above, unless otherwise specified in
the vehicle SCR, The front splitter must be flat and
a consistent thickness in the area that protrudes
from the body. Front splitter must be approved by
GRAND-AM by submission of drawing and
pictures.
3-8 Air Inlets
3-8.1 Air inlets must have a single, precise function of
cooling or ventilation. They must not protrude
beyond the outline of the car when viewed from
above, and not extend beyond the surface of the
bodywork. Snorkel-type air intakes are prohibited.
Only the production holes in bodywork may be
used for inlets, unless otherwise approved.
Headlight holes may not be used as air inlets.
111

3-8.2 One fabricated duct with a maximum 2” hose outlet
may be installed on each side of the car between
the production mirror and the door or “A” pillar for
the purpose of directing air to the driver. Panels
described in Section 4-4.5 may have a duct for
driver cooling installed or through said panel.
3-9 Lighting –
3-9.1 When lighting is required, OEM or direct aftermarket
replacement headlights must be utilized.
3-9.2 When lighting is not required, headlights may be
replaced with a panel of the exact shape and
contour of the original and have decals installed
that replicate the OEM lights.
3-9.3 Modifications required to fit additional lighting are
permitted. All other auxiliary lights must be located
within the bodywork.
SECTION 4 - DRIVE TRAIN
4-1 Drive Train (Prep 1)
4-1.1 Drive train must remain original in type, mounting
and location.
4-1.2 Mechanical sequential gear change is permitted.
Paddle shift systems may be approved in the GT-
SCR.
4-1.3 Gearbox ratios are free. The original cases (or
approved alternate), mounting, location, and the
shifting mechanism must be maintained.
4-2 Drive Train (Prep 2)
4-2.1 Front-engine cars may have either an approved
Daytona Prototype transaxle or a conventional
transmission in the standard mounting location with
a standard differential. Front engine cars utilizing an
approved DP transaxle must add 4% of the specified
minimum weight of the vehicle.
4-2.2 GRAND-AM shall specify the manufacturer and
approved models of transaxles. The transaxles
shall use a straight cut gear, dog ring-style design.
The transaxle case(s) must be cast or machined
billet aluminum. The transaxle must be of the longitudinal
design, using only 2 shafts, input to layshaft
and mainshaft to the pinion. A limited slip differential
will be permitted as follows; a non-ramp type,
limited slip, clutch plate differential or a ramp type
112

differential must be utilized. Only approved ramp
angles will be permitted. Ramp angles will remain
equal for all approved transaxles. The only ramp
angles approved are 30/60 and 45/70. Ramps may
be run in either orientation . Gear change ratios are
free for Prep 1 and Prep 2 cars. Prep 2 GT cars are
permitted to use the following externally adjustable
differential kits, Xtrac #386-981-002A and EMCO
#469771. These may not be modified from their
original configuration. No suspension mounting
points are permitted on/to the transaxle case(s). All
transaxle units must include a GRAND-AM
approved transaxle/suspension mounting plate.
4-2.3 A current list of approved transaxle suppliers is
available from GRAND-AM online at www.GRAND-
AM.com.
4-2.4 Sequential Gear Change – The use of a paddle shift
system may be permitted with approval from
GRAND-AM. GRAND-AM shall regulate software,
hardware, plumbing configuration and wiring
harness for all approved installations. It is permitted
to maintain the existing manual shift mechanism.
4-3 Clutch/Flywheel –
4-3.1 Flywheel must be steel.
4-3.2 Clutch may be a heavy-duty multiple-disc type,
using 3 or more metallic discs with a minimum
diameter of 5.5”.
4-3.3 Carbon clutches are prohibited.
4-3.4 Clutch pressure plate and flywheel must mount
directly to the engine.
4-4 Maximum forward gears –
4-4.1 A maximum of 5 forward gears plus 1 reverse gear
is permitted for cars with engines 5.0L and large. A
maximum of 6 forward gears plus 1 reverse gear is
permitted for cars with engines less than 5.0L.
4-5 Bell housing/Adapter Plate –
4-5.1 The engine to transaxle adapter plate must be
made of steel or aluminum and must be approved
by GRAND-AM.
4-6 Prop/Drive Shaft -
4-6.1 Drive shafts must be of steel or aluminum material.
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4-6.2 It is mandatory that two 360° steel loops be
installed around the drive shaft.
SECTION 5 - WHEELS AND TIRES
5-1 Tires - The Official Tire Supplier is Continental Tire. The tires
must be used as sold at the Event by Continental Tire. No
other tire may be used. Contact at www.continentalrace.com.
A set is defined as 2 front tires and 2 rear tires based on the
listed sizes for each vehicle. Tires must be ordered 2 weeks
prior to the Event.
5.2 Tire control - GRAND-AM will determine the number of
permitted tire sets for each Event based on the duration of
the Event. Supplementary Regulations for the Event will indicate
the set limit for the Event. Teams must identify wheels
with the car number permanently marked near the valve stem
area. Any pre-purchased tire that the team wishes to use at
an event must be registered with Continental, at that Event,
at least 1 hour before they may be used. One set of scuffed
tires from the previous event may be added to the set limit at
each event. These must be registered with Continental prior
to the first practice session. The scuffed set (if) carried over
does not count as part of the limit. Once registered, a tire
may not be exchanged or substituted. If a car is with drawn
from an event or retired from the race, the tires allocated to
that car may be reassigned to another car provided the set
limit is not exceeded. Those tires will need to be rescanned
(1 hour before use) and remounted on the appropriately
marked wheels. The set limit will include tires purchased at
the Event and any additional tires the team has registered
with Continental at the beginning of the Event. Rain tires are
not regulated by this rule and are not included in the set limit.
5-2.1 Tires are allotted to specific car numbers and may
not be used by another car under any circumstance
and must be mounted to the numbered wheels for
that car. Any team found with an unassigned tire in
the pits or on the car during any session will be
subject to penalty and loss of tire allocation.
5-3 Testing - GRAND-AM shall authorize the sale of Continental
tires for independent testing according to the following basis.
5-3.1 On an individual case-by-case basis following a
written request from the Member for the purposes
of testing new drivers, shaking down new cars for
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customers, GRAND-AM approved media events,
new customer introductions or other special cases.
GRAND-AM shall be the sole entity in deciding on
these cases and the decision shall be final.
5-3.2 All tires authorized for independent testing and/or
on GRAND-AM test days may be used for any official
Rolex event practice, qualifying or race
sessions. These tires must be registered for the
event as outlined in Section 5-2.
5-3.3 If it is determined by GRAND-AM Officials that any
form of unapproved testing and/or testing on non
series tires has taken place the entrant and drivers
will have their GRAND-AM privileges suspended for
a period of up to one year. The results of GRAND-
AMs investigation and subsequent decisions are
final and is not subject to protest or appeal.
5-3.4 Each GRAND-AM Rolex Sports Car Series Entrant
is prohibited from any independent testing without
GRAND-AM’s prior knowledge and approval. This
includes any and all forms of testing. GRAND-AM
may schedule official track tests during the course
of the season. All testing must be conducted on the
series approved Continental tires as delivered by
the tire manufacturer.
5-4 Wheels
5-4.1 All wheels must be 18” diameter and have the car
number permanently marked on the wheel near the
valve stem.
5-4.2 Maximum complete wheel/tire cross-section width
is 14”.
5-4.3 Carbon fiber and wide-5 wheels are prohibited.
5-4.4 Wheel offset is free.
5-4.5 Wheels must be of 3 piece construction.
5-4.6 Wheel fans are prohibited.
5-4.7 Centerlock wheels are permitted.
5-4.8 Wheel centering or hub centric devices may be
added. They must be bolted or mechanically
retained to the hub, (no floating spacers). The
centering/locating device up to 3” in length must
not protrude beyond the outside wheel rim flange.
The wheels studs can be a maximum of 2.5” in
length and must be at least 1.5” shorter than the
centering device.
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5-4.9 European domiciled teams with approved GT cars for
GRAND-AM may compete with one piece forged
aluminum wheels that are homologated for the
vehicle in the FIA GT3 Homologation Form.
SECTION 6 - SUSPENSION AND STEERING
6-1 Suspension - (Prep 1)
6-1.1 The type, number of mounting points, components,
and uprights in the suspension must remain as
approved. Springs are free (maximum of 4)
provided they are the original type. The springing
medium must not consist solely of bolts located
through flexible bushings or mountings. There must
be movement of the wheels to give suspension
travel in excess of any flexibility in the attachments.
6-1.2 All suspension components, with the exception of
parts specifically mentioned must be original equipment
for the approved model supplied by the
manufacturer or homologated per GRAND-AM
approval.
6-1.3 The position of the suspension mounting points on
the chassis may be moved or changed by not more
than 1”, while respecting the number and the original
type of the suspension.
6-1.4 Rubber joints may be replaced with uni-ball joints.
6-1.5 Shock Absorbers – Any shock absorber with a
maximum 3 way adjustment and with a maximum
of 1 remote canister is permitted. Cross-connected
shocks are prohibited.
6-1.6 Driver adjustable front and rear anti-roll bars are
permitted. The adjustment mechanism may only
consist of mechanically operated levers acting on
“blade” type adjusters or connector links moving on
the length of the anti-roll bar “leg” or “arm”. When
used, Anti-roll bars must be connected to the
suspension by a solid link. Links may be adjustable
in length but must be a fixed length during on-track
operation. The use of heim joints will be permitted.
No pre-loading of anti-roll bars will be permitted.
6-1.7 Driver controlled electronic or hydraulic adjustments
of springs and shock absorbers are
prohibited.
6-1.8 No metallic, magnetic, or compressible fluids are
permitted.
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6-1.9 Suspension Parts – All suspension parts must be
made from homogeneous metallic materials, unless
otherwise supplied as OEM. Chromium plating of
steel suspension parts are prohibited.
6-1.10 Steering – All steering components (except the
steering ratio and tie rod ends) must be original
equipment supplied by the manufacturer. These
parts may be strengthened provided the original
part can still be identified.
6-2 Suspension (Prep 2)
6-2.1 Suspension may be of 4 wheel independent design,
with only 1 spring and 1 shock absorber per wheel
permitted. Front-engine cars may use a “live axle”
rear end housing with a 3 or 4 link suspension
attachment and a watts-link or panhard bar for axle
centering. The spring must be on the shock
absorber (coil-over style). Active Suspension is
prohibited. All cars may use the production
hub/bearing carrier/stub-axle. If replaced, the front
suspension upright/spindle must be 1-piece, fabricated,
welded or forged steel upright and must
either be Stock Car Products (SCP) Grand National
style GN90F-96F or its GRAND-AM approved
replacement. 5 bolt steel or aluminum hubs are
required. Hub must be comparable to Hoerr Racing
Products GN 5x5-102-5GN. Single nut hub/live
spindle assemblies are not permitted. Changes to
the associated upright must comply with fabrication
and material as defined in this section.
Changes to existing chassis must be submitted and
approved by GRAND-AM in writing.
6-2.2 Front Suspension - only basic coil-over, double
wishbone type permitted. All suspension pick-up
points must be incorporated in the chassis framework.
Upper Control arm must be 8.25” to 10.5” in
length, fabricated steel. Control arm must use
screw-in or bolt-in automotive style ball joints.
Control arm must either be AFCO part number
19006-19013 or P/N 20002 to 20010-1 or its exact
replica.
Suspension must be of “outboard design”. Push
rod/pull rod, bell cranks or remote coil-over shocks
are prohibited.
6-2.3 Rear Suspension - All rear suspension and coil-over
mounting/pickup points must be to the main
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chassis framework, the engine bell housing/adapter
plate, and/or the transaxle/suspension mounting
plate. No suspension mounting points are allowed
on/to the transaxle case. Push rod/pull rod, bell
cranks or remote coil-over shocks are prohibited.
6-2.4 Shock Absorbers - Any shock absorber maximum
3-way adjustment and with a maximum of 1 remote
canister is permitted. Cross-connected shocks are
prohibited.
6-2.5 Driver adjustable front and rear anti-roll bars are
permitted. The adjustment mechanism may only
consist of mechanically operated levers acting on
“blade” type adjusters or connector links moving on
the length of the anti-roll bar “leg” or “arm”. When
used, Anti-roll bars must be connected to the
suspension by a solid link. Links may be adjustable
in length but must be a fixed length during on-track
operation. The use of heim joints will be permitted.
No pre-loading of anti-roll bars will be permitted.
6-2.6 Driver controlled, electronic/hydraulic adjustments
of springs and shock absorbers is prohibited.
6-2.7 Materials - Suspension members (A-arms, uprights)
must be made from magnetic steel material. Front
A-arms must be of an anti-intrusion design.
6-2.8 Steering Components – Only front steering is
permitted. Rack and pinion only, no bell cranks,
only one tie rod per side from the spindle steering
arm to the steering rack.
6-2.9 Lower control arm, steering arms and sway bars are
free.
SECTION 7 - BRAKES
7-1 Brake Rotors
7-1.1 Only magnetic cast iron or cast steel rotors.
7-1.2 Maximum rotor diameter: OEM diameter (Prep 1) or
355 mm, whichever is greater.
7-1.3 Must be made of magnetic cast iron or cast steel
(ferrous) material.
7-1.4 Minimum rotor diameter: OEM diameter (Prep 1) or
330 mm.
7-2 Brake Calipers –
7-2.1 Only a single 2-piece (split into 2 halves) brake
caliper of aluminum alloy, with a maximum of 4
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pistons and 2 pads per wheel is permitted.
Maximum caliper stack width is 78mm.
7-2.2 Titanium pistons are permitted in brake calipers.
7-2.3 The brake pedal must operate all 4 wheels through
a dual master cylinder system.
7-2.4 Anti-lock/ABS brakes are prohibited on Prep 2 cars.
Factory installed ABS permitted on Prep 1 cars as
approved.
7-2.5 Prep 1 cars may use approved Prep 2 brake
systems.
7-3 Brake Master Cylinders
7-3.1 Master Cylinders are free.
SECTION 8 - FUEL SYSTEM
8-1 Fuel Tanks -
8-1.1 The fuel cell must be located within 26.5” of the
longitudinal centerline of the car. It is recommended
that the fuel cell be mounted above and/or behind
the rear axle assembly. All other installations require
advance approval by GRAND-AM.
8-1.2 The fuel cell(s) must be separated from the driver
and engine compartment by a metal firewall. Floor
to ceiling bulkheads are prohibited unless in original
configuration.
8-1.3 All fuel cell installations must be approved by
GRAND-AM prior to competition.
8-2 Fittings and Piping -
8-2.1 All fittings in the rubber fuel cell bladder (including
air vents, inlets, outlets, tank fillers, inter-tank
connectors and access openings) must be metal
fittings bonded into the bladder.
8-2.2 Fuel, cooling water or oil lines that pass through the
cockpit must be shielded hose with bulkhead
fittings.
8-2.3 No hydraulic fluid lines may have quick connectors
inside the cockpit.
8-3 Fuel Tank Fillers -
8-3.1 The tank filler and vent must not protrude beyond
the bodywork. The filler/vent must be situated in the
rear deck lid as far rearward as possible.
8-3.2 Fuel Capacity - The maximum fuel capacity is
defined in the vehicle SCR. 3 bolts must be drilled
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that fasten the fuel cell top cover for sealing
purposes.
8-3.3 GRAND-AM reserves the right to adjust fuel
capacity.
SECTION 9 - WEIGHT
9-1 Maximum permitted rear weight percentage for frontengine
cars, without fuel and driver, race ready is 51%.
SECTION 10 – MANUFACTURERS
10-1 A Grand-Am supplied windshield banner must be in place on
upper portion of windshield however If car manufacturer is
approved for the Manufacturers Championship, the vehicle
is required to display a manufacturer provided windshield
banner. If engine manufacturer is NOT approved for the
Manufacturers Championship, the vehicle is required to
display a GRAND-AM supplied windshield banner on front
windscreen.
Eligible GT Models
Aston Martin Vantage Prep 1
Audi R8 Prep 1
BMW M3 E92 Prep 2
Chevrolet Camaro Prep 2
Chevrolet Corvette Prep 1 & 2
Ferrari 458 GT Italia Prep 1
Ford Mustang Prep 2
Infiniti G37 Prep 2
Jaguar XK Prep 1
Lamborghini Gallardo Prep 1
Lexus LFA Prep 2
Mazda RX8 Prep 2
Mercedes SLS Prep 1
Nissan 370Z Prep 1 & 2
Porsche GT3 Cup 2009-2010 Prep 1
Porsche GT3 Cup 2011-2013 Prep 1
Porsche 997 GTC Prep 1
Viper ACR Comp coupe Prep 1
120

GX GENERAL CLASS REGULATIONS (“GX-GCR”)
121

GX GENERAL CLASS REGULATIONS (“GX-GCR”)
Section 1 - General Class Explanation and Purpose
1-1. PURPOSE. The GX class is for purpose built, Series
Produced and modified versions of series produced automobiles
that are not eligible for the GT class. Cars in the GX
class
1. Have been in production for road use or meet homologation
criteria.
2. Have been for sale to the public in a regular dealer
offering in North America.
3. Are current productions models or no older than 3 years
after the end of production.
4. May have 2 or 4 doors.
1-2. SPECIFICATIONS. GRAND-AM will list on the GRAND-AM
website, the approved cars and the Specific Car Regulations
(“SCR”) for the GX class according to the OEM’s make and
model designation. The SCR shall be part of the Regulations
and shall govern if a conflict between the GAR and the GX-
GCR occur.
1-3. CATEGORIES. The GX class will be comprised of 2 distinct
preparation methods (“Categories”), all designed to have
cars at a similar competition level for GX class racing.
1-3.1. Unibody GX (“Prep 1 GX”)- This category is
reserved for production cars with little or minor
modifications
1-3.2. Semi-Tube GX (“Prep 2 GX”) - This category is for
cars with modified production or tube-frame
chassis. They may be front-wheel drive cars
converted to rear-wheel drive or they may be cars
that require physical modifications to be competitive
in GX. Specified tube-frame construction is
permitted. Alternative engines from the original
manufacturer may be approved.
SECTION 2 - GENERAL ENGINE REGULATIONS
2-1 Eligibility
2-1.1 The eligible engines shall be determined, selected
and approved by GRAND-AM and listed along with
the engine specifications, specified components
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and performance levels in the GX-SCR, which must
be strictly adhered to.
2-1.2 To be approved, engines may be required to be
submitted to GRAND-AM for testing and analysis.
2-1.3 GRAND-AM may approve alternate engines from
the OEM's production car lines that are not originally
fitted to a specific model.
2-1.4 Turbo Charging – Eligible turbocharged or supercharged
engines are limited to production of
engines delivered in normal product offering at
automobile dealerships in the United States.
2-2 Engine Location must remain as approved.
2-2.1 (Prep 1) The engine may be freely located in the
original engine bay as long as no changes to the
cockpit dimensions are made. A stress mounted
engine installation is prohibited.
2-2.2 (Prep 2) The engine must be located in the original
engine bay/compartment. Front wheel drive cars
may reposition the engine to allow for rear wheel
drive installation.
Unless otherwise approved and listed in the GX-
SCR for a specific model, the engine may be
located so that the foremost spark plug (or injector
for diesel engines) is no farther rearward than the
front axle centerline unless specified otherwise. The
foremost spark plug location is defined as the
centerline of the access hole in the valve cover or
cylinder head casting. A 1” maximum right side
offset measured from the front tread centerline is
permitted. Stressed engines are prohibited.
2-2.3 A minimum 8” crankshaft centerline height is
required.
2-3 General Engine Requirements.
2-3.1 All engines must be production-based. (GRAND-
AM may require changes in bore and stroke or other
specifications in some circumstances.) GRAND-AM
may approve other engines.
2-3.2 Maximum engine RPM, throttle body size/diameter,
valve lift and size, and the maximum compression
ratio may be specified for each approved engine.
Engine air box and inlet air restrictors may also be
required.
2-3.3 For turbocharged engines, boost level, fuel injector
placement, fuel injector specification, fuel pressure,
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maximum fuel flow rate, intercooler size, and all
aspects of the engine map may be specified by
GRAND-AM in the GX-SCR.
2-3.4 It is mandatory that all major components and parts
be available for sale to the general public in a
regular product offering. GRAND-AM must approve
all components/parts prior to use in competition.
2-3.5 All approved components/parts and modifications
will be specifically listed for each eligible engine.
See GX-SCR.
2-3.6 Engines may be normally aspirated 6 cylinder
configuration with a displacement of 3.4. 4.0 liters,
or a turbocharged I-4 configuration with a displacement
of 2.0 to 2.5 liters. Single, twin, and/or
twin-sequential turbocharging shall be specified in
the GX-SCR. Use of GRAND-AM approved diesel
fuel is permitted in GX.
2-3.7 All component parts must remain per GRAND-AM
specifications.
2-3.8 Cylinder heads must retain the same number and
location of intake and exhaust ports, valves, spark
plugs, diesel injectors and camshafts (if used) as
the production engine. Valve location, valve size
and angles must remain stock as on the approved
production heads.
2-3.9 Normal blueprint machining may be performed on
the engine components. The stock production
block and cylinder heads must be used, unless an
alternate has been approved. Engine blocks are
permitted to be bored to a maximum of .030 over.
2-3.10 The use of titanium or ceramic engine components
is prohibited except when utilized in the original
production engine, or as otherwise specified.
2-3.11 The following items may be replaced with aftermarket
components - steel crankshaft, steel rods,
round aluminum pistons, titanium or steel valves,
steel valve springs, camshafts, cam followers and
rocker arms with OEM ratio, timing chain/cam drive
and dry sump oil pump and system. Replacement
items must be readily available to all competitors.
2-3.12 Crank, rods and pistons must be of OEM weight
and dimension unless specifically approved by
GRAND-AM and listed in the GX-SCR.
2-3.13 Variable valve timing and variable inlet systems are
prohibited.
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2-3.14 Only a direct mechanical linkage between the
throttle pedal and the engine throttle control is
permitted. Production or Spec ECU controlled
throttle-by-wire systems may be approved for
specific models.
2-3.15 All lines containing fuel, oil or coolant within the
cockpit area must be armored lines.
2-3.16 All GX cars that choose to use an aftermarket ECU
in lieu of the OEM ECU must use the SPEC ECU
and wiring harness as delivered by Bosch and
approved by GRAND-AM. Each entrant will be
eligible to purchase 1 ECU, 1 engine wiring harness
and 1 chassis adapter harness at a discounted
price. Additional spares are available at the nondiscounted
price. SPEC ECU and wiring harnesses
may not be modified in any way. Specific cars may
be required to use a Specified ECU in the GX-SCR.
2-4 Exhaust Systems
2-4.1 The exhaust system must exit rearward of the
center (mid-point) of the wheelbase.
2-4.2 Side exhaust exits may be no higher than the top of
the rocker panel.
2-4.3 Exhaust system must remain within the perimeter of
the bodywork as viewed from above.
2-4.4 The exhaust must meet GRAND-AM and local
sound limits.
2-4.5 Variable exhaust systems are prohibited.
2-5 Cylinder Heads – Must remain as approved. Ports may not
be altered in shape, form or volume. Porting is prohibited.
2-6 Camshaft, Valve Lifter, and Rocker Arms - Must remain as
approved.
2-7 Intake Manifold -
2-7.1 The intake system (manifold, and/or throttle
body/air box) must remain as installed on the
approved engine.
2-7.2 OEM variable length inlet systems are not permitted
unless approved by GRAND-AM.
2-7.3 Internal coating or painting is not permitted.
2-8 Air Cleaner, and Air Intake -
2-8.1 Cowl or ram air induction is only permitted through
existing standard air intake areas of the bodywork.
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2-9 Electrical System -
2-9.1 Must remain as approved.
2-9.2 Data Recorder – Each car must have installed only
an EFI Level 4, Motec ADL, ADL2, ADL3, or Bosch
GRAND-AM specified data recording system and
optional telemetry system. GRAND-AM reserves
the right to view any/all data collected by a
team/entrant at any time. GRAND-AM specified
Bosch Data systems are permitted. The spec
ECU/Data logger must always have a 128 Mb or
larger Bosch memory card installed during a race or
qualifying. Data cards cannot be removed from the
car without permission from GRAND-AM Official.
Pitot tubes are permitted for data gathering.
2-10 Radiator – The water radiator must remain in the original
position. Installation of an expansion tank which is located in
the engine compartment is permitted.
SECTION 3 - CAR BODY REQUIREMENTS
3-1 Bodywork - (Prep 1)
3-1.1 The width of the bodywork across the front and rear
wheel arches may be increased symmetrically by a
maximum of 4” over the original stock production
bodywork by adding a maximum of up to a 2”
extension over the standard wheel arch. The total
width of any car modified this way is 74”. Vehicles
that are wider than 74” in standard configuration,
may modify the fenders for the fitting of required
wheels and tires, but cannot exceed the standard
configuration width.
3-1.2 Each car must have 2.5” minimum ground clearance
or as specified in individual car specifications.
3-1.3 Strengthening of the unibody chassis and bodywork
is permitted provided that the material used
follows the original shape and is in direct contact
with it.
3-1.4 Material used for replacement parts, hood, deck lid,
doors, roof, fenders, is unrestricted, but where a
panel is replaced, it must be attached in a way,
which is as strong as the original method.
3-1.5 Bodywork dimensions must remain as approved.
Molds for replacement body panels must be made
from the standard original panel. They must be a
direct replacement for the production part.
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3-1.6 Specific mention of original approved dimensions
and equipment include, but are not limited to -
Chassis/bodywork must retain original height,
width, wheelbase, and front and rear overhang.
Wing mounting and profile, and the end plates must
lay on a single plane in front view (flat).
Nose (including splitter) in original configuration
must remain as approved.
Rocker panels, front and rear bumper, and fender
flares must remain as approved.
No other underbody aids are permitted. The
bottom of the floor must be tangent to the bottom
of the rocker panels with the weld seam removed.
3-1.7 No additional ducting or aero aids are permitted
except as authorized by GRAND-AM.
Bodywork - Mounting type is free (screws, dzus,
cam-lock). Fasteners must be of the captive type.
Body gaps may not exceed ¼”. Hoods and deck
lids may not flex.
Nose screening may be extended to cover all
openings.
Ducting behind the nose in front of and below the
front wheel centerline is free.
Air jack port location is free.
3-2 Bodywork - (Prep 2)
3-2.1 The external shape and recognizable features of the
body must not be changed. The roofline, front and
rear window angles and shape must remain standard.
The original outer unibody may be duplicated
in composite material. Bonding of components will
be restricted to body panel to body panel, no other
bonding of components is permitted.
3-2.2 The firewall and cowl may be replaced with a steel
(0.035 minimum thickness) welded-in panel of the
same dimensions and placement as OEM. No air
may pass over, above or around the floor.
3-2.3 The floor pan from the firewall rearward to the rear
of the car and laterally from the inside of the rocker
panels and the rear wheel tubs may be modified or
replaced.
Floor pan height including rear floor kick-up must
remain similar to production.
The modified or replacement floor must be flat
with no ducts or tunnels permitted.
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The floor pan from the firewall to the rear floor
kick-up must be steel (0.035 minimum thickness).
The bottom of the floor must be tangent to the
bottom of the rocker panels with the weld seam
removed.
3-2.4 The driveshaft tunnel may be enlarged for the
passage of the exhaust system, but no more than
necessary for the fitting of the system and any insulation
used.
3-2.5 The front frame rails may be modified or replaced
for permitted replacement suspension modifications.
The minimum replacement frame rail sizes
are 2 x 2 x 0.095 for stock car style kick-up frames
or 1 3/4 x 1 3/4 x 0.095 for double frame rail cars.
3-2.6 The rear frame rails may be modified or replaced for
permitted replacement transaxles and differentials
and for permitted rear suspension modifications.
Minimum replacement rear frame rail sizes are 2 x 2
x 0.095 for stock car style kick-up frames or 1 3/4
x 1 3/4 x 0.095 for double frame rail cars.
3-2.7 Replacement frame rails from the firewall to the rear
floor kick-up must be at least 2 x 2 x 0.095 for stock
car style frames or 1 3/4 x 1 3/4 x 0.095 for double
frame rail cars.
3-2.8 The rear side of the main roll hoop may be mounted
no further rearward than the floor kick-up, perpendicular
to the floor or with no more than 10-degree
rearward incline. All required tubes of the roll cage
must be at least 1 3/4 x 0.095 DOM tubing.
3-2.9 Stock car frames are defined as having lower frame
rails with front frame rails kicked-up and rear rails
under-slung or kicked-up with an integrated roll
cage.
3-2.10 Double frame rail cars are defined as having upper
and lower frame rails with a roll cage affixed to the
top of the upper frame rail.
3-2.11 The width of the bodywork across the front and rear
wheel arches may be increased symmetrically by a
maximum of 4” over the original stock production
bodywork by adding a maximum of up to a 2”
extension over the standard wheel arch. The total
width of any car modified this way is 74”. Vehicles
that are wider than 74” in standard configuration,
may modify the fenders for the fitting of required
wheels and tires, but CANNOT exceed the standard
configuration width.
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3-2.12 Each car must have 3.5” inch minimum ground
clearance or as specified in individual car specifications.
3-2.13 These body modifications (3-2.11) must result in
the panels being as close to the original as possible
in appearance. (The hood, fenders, doors, and
trunk/deck lid must be able to replace a production
example and fit properly). Body gaps may not
exceed ¼”. Hoods and deck lids may not flex. The
only bodywork permitted is that approved by
GRAND-AM. Hood, doors and trunk must hinge as
per original location. Doors must retain original door
handles and latches.
3-2.14 The hood must use a minimum of 3 hood pins
mounted to the chassis or nose frame.
3-2.15 The rear deck lid must use a minimum of 2 rear
deck pins mounted to the chassis or rear frame.
3-2.16 Only the approved front nosepiece is permitted.
Only a GRAND-AM-style front under tray with
tunnels or a flat bottom is allowed, extending no
farther rearward than the leading edge of the front
wheel opening on front-engine cars.
3-2.17 Front Bumper Nose Box assembly must be solid
mounted. Floating nose box assemblies are not
permitted.
3-2.18 The rear of the car (area surrounding the original
license plate area) may be vented a maximum of
100 sq. in and must be covered by a maximum
0.250” mesh screen. Cars must have at least 2 original
production rear brake and taillights (red in color)
with a minimum of 1 each working at all times. No
rear under trays are permitted. The trunk floor must
surround the fuel cell at the production drop well
dimension using steel panels.
3-2.19 Right and left outside rear view mirrors are required.
The mirror housing must be identical to the production
mirror for the specific make and model as
entered.
3-2.20 A fully sealed steel engine firewall with a minimum
thickness of 0.035” is required and must extend all
the way down to the flat floor; no air may pass
over/above or around the floor.
3-2.21 A fully sealed steel rear firewall with a minimum
thickness of 0.035” is required separating the
driver/passenger compartment from the fuel cell
area. Floor to roof bulkheads are not permitted.
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3-2.22 Interior panel material is free.
3-2.23 One NACA duct per side, painted to match the car
may be installed anywhere in the bodywork rearward
of the door number area.
3-3 Dash/Installed Components - Must remain as original or
may be replaced with an updated instrument cluster. Gauges
are free. It is permissible to move dash rearward in Prep 2.
3-3.1 The dash pad must be identical to the production
dash in shape.
3-3.2 Driver seat location must remain on the original
longitudinal centerline and no further rearward than
the back of the original front seat reclined at 20
degrees.
3-4 Windows –
3-4.1 Windshield may be replaced with a standard reproduction
at least 0.250” thick, of hard-coated
polycarbonate. Refer to the GAR 2-6.
3-4.2 A minimum of 3 metal reinforced braces inside the
windshield are required on all vehicles. Minimum
dimension .5” (angle or tubing) and minimum
spacing 8” between the braces. Top of braces must
be attached to the roll cage at the roof bar #3.
Bottom of braces must be attached to roll cage
dashboard bar #8, bolted to the cowl or firewall or
other attachment as approved by Officials.
3-4.3 NACA ducts for driver cooling may be used in side
windows.
3-4.4 Rear window and rear quarter windows may be
replaced with a standard reproduction at least
0.125” thick polycarbonate. The rear window must
be secured on the outside with at least 2 metal
straps 1” wide by 0.1875” thick. The rear window
may have up to (5) 1.5”X 5” oval shaped holes for
the purpose of exhausting air from the interior of the
car. These holes must be spaced symmetrically
across the car.
3-4.5 Door windows are not permitted, except a triangular
clear polycarbonate single plane panel in the
front of the driver and passenger door window. The
triangle’s bottom length may be a maximum of 27%
of the original opening. The rear edge of the panel
must be 90 degrees to the bottom edge.
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3-5 Floor -
3-5.1 The Floor plan, from the engine firewall rearward
and laterally from rocker panel to rocker panel,
must be the original or a flat replacement with no
ducts or tunnels. Floor paneling forward of the
engine firewall is not permitted. The floor pan under
the driver from the engine firewall to the main roll
hoop must be steel with a minimum thickness of
0.049. All replacement floors must retain original
configuration with foot wells and kick ups in their
original location. Passenger floor may be raised no
higher than the top of the door sill to accommodate
exhaust only. Between the front and rear axles the
floor must remain as approved – ref. Bodywork-
(Prep 2) section.
3-5.2 The floor pan must produce a uniform, solid, hard,
continuous, rigid (no degree of freedom in relation
to the body/chassis unit), impervious surface,
under all circumstances.
3-5.3 No sprung part of the car is permitted below the
floor pan.
3-5.4 No air may pass above this surface. Circular openings
are permitted for the use of air jacks. These
openings must seal to the air jack body.
]3-5.5 Flat add-on floor or rear diffuser are prohibited.
3-6 Rear Wing - The single-element GRAND-AM Spec rear wing
and end plates as supplied exclusively by Crawford
Composites are required. A maximum 0.75” wicker is
permitted. Contact Crawford Composites at 704-483-8726.
3-6.1 The Spec wing endplates must be at least 2” from
the body and the wing mounts must be at least 12”
in from each end of the wing. Wing end plates may
be repositioned on the ends of the original wing end
mounts, such that they cover the wing end cross
section. The end plates must lay on a single vertical
plane in front view.
3-6.2 Complete wing, endplates and wickers must be a
minimum of 2” below the roof, unless otherwise
specified.
3-6.3 The complete wing must not exceed the rear-most
perimeter of the bodywork when viewed from
above.
3-6.4 The finish on the outer side of the wing end plate
may be painted or wrapped provided the inboard
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side of the end plate is not altered/painted/covered
(including tape) in any way. Removable die cut vinyl
sponsorship decals may be applied with the
approval of GRAND-AM.
3-7 Front Splitter/Air Dam -
3-7.1 The stock front unmodified valance/fascia must be
used. A horizontal splitter may be added to the front
of the car to a maximum of 3” forward of the car as
viewed from above. Front splitter must be flat and a
consistent thickness in the area that protrudes from
the body. Front splitter must be approved by
GRAND-AM by submission of drawing and pictures.
3-8 Air Inlets
3-8.1 Air inlets must have a single, precise function of
cooling or ventilation. They must not protrude
beyond the outline of the car when viewed from
above, and not extend beyond the surface of the
bodywork. Snorkel-type air intakes are prohibited.
Only the production holes in bodywork may be
used for inlets, unless otherwise approved.
Headlight holes may not be used as air inlets.
3-8.2 One fabricated duct with a maximum 2” hose outlet
may be installed on each side of the car between
the production mirror and the door or “A” pillar for
the purpose of directing air to the driver. Panels
described in Section 4-4.5 may have a duct for
driver cooling installed or through said panel.
3-9 Lighting –
3-9.1 When lighting is required, OEM or direct aftermarket
replacement headlights must be utilized.
3-9.2 When lighting is not required, headlights may be
replaced with a panel of the exact shape and
contour of the original and have decals installed
that replicate the OEM lights.
3-9.3 Modifications required to fit additional lighting are
permitted. All other auxiliary lights must be located
within the bodywork.
SECTION 4 - DRIVE TRAIN
4-1 Drive Train (Prep 1)
4-1.1 Drive train must remain original in type, mounting
and location.
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4-1.2 Mechanical sequential gear change is permitted.
4-1.3 The gearbox may have a maximum of 6 forward
ratios (or as specified in GX-SCR) and a reverse
gear.
4-1.4 Gearbox ratios are free. The original cases (or
approved alternate), mounting, location, and the
shifting mechanism must be maintained.
4-2 Drive Train (Prep 2)
4-2.1 Front-engine cars may have either an approved DP
transaxle or a conventional transmission in the
standard mounting location with a standard differential.
Front engine cars utilizing an approved DP
transaxle must add 4% to the authorized minimum
weight of the vehicle. Additional transaxle may be
listed in the GX-SCR.
4-2.2 GRAND-AM will specify the manufacturers and
approved models of transaxles. The transaxles will
have a maximum of 6 forward speeds (mechanical
sequential gear change is permitted) and 1 reverse
gear; using straight cut gear, dog ring-style design.
The transaxle case(s) must be cast or billet
aluminum. The transaxle must be of the longitudinal
design, using only 2 shafts, input to layshaft and
mainshaft to the pinion. A limited slip differential will
be allowed as follows; either a non-ramp type,
limited slip, clutch plate differential or a ramp type
differential will be utilized. Only the approved ramp
angles will be permitted. The ramp angles will
remain equal for all approved transaxles. The only
ramp angles approved are 30/60 and 45/70.
Ramps may be run in either orientation (flipped
around). Gear change ratios are free for Prep 1 and
Prep 2 cars. Prep 2 GX cars are allowed to use the
following externally adjustable differential kits,
Xtrac #386-981-002A and EMCO #469771. These
cannot be modified from their original configuration.
No suspension mounting points are allowed
on/to the transaxle case(s). All transaxle units must
include a GRAND-AM approved transaxle/suspension
mounting plate.
4-2.3 A current list of approved transaxle suppliers is
available from GRAND-AM at 386-310-6500 or
online at www.GRAND-AM.com.
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4-2.4 Sequential Gear Change – The use of a paddle shift
system may be permitted for certain qualified
drivers, with approval from GRAND-AM. GRAND-
AM shall regulate software, hardware, plumbing
configuration and wiring harness for all approved
installations. It is permitted to maintain the existing
manual shift mechanism.
4-3 Clutch/Flywheel –
4-3.1 Flywheel must be steel.
4-3.2 Clutch may be a heavy-duty multiple-disc type,
using 3 or more metallic discs with a minimum
diameter of 5.5”.
4-3.3 Carbon clutches are prohibited.
4-3.4 Clutch pressure plate and flywheel must mount
directly to the engine.
4-4 Maximum forward gears –
4-4.1 A maximum of 6 forward gears plus 1 reverse gear
are permitted for GX cars.
4-5 Bell housing/Adapter Plate –
4-5.1 The engine to transaxle adapter plate must be
made of steel or aluminum and must be approved
by GRAND-AM.
4-6 Prop/Drive Shaft -
4-6.1 Drive shafts must be steel or aluminum.
4-6.2 It is mandatory that two 360° steel loops be placed
around the drive shaft.
SECTION 5 - WHEELS AND TIRES
5-1 Tires - The Official Tire Supplier is Continental Tire. The tires
must be used as sold at the Event by Continental Tire. No
other tire may be used. Contact at www.continentalrace.com.
5-1.1 A set is defined as 2 front tires and 2 rear tires. Tires
must be ordered 2 weeks prior to the Event.
5-1.2 The specified tire size for GX is 285/645-18 front
and 305/660-18 rear.
5.2 Tire control - GRAND-AM will determine the number of sets
of tires permitted for each Event based on the duration of the
Event. Supplementary Regulations for the Event will indicate
the set limit for the event. Teams must identify wheels with
the car number permanently marked near the valve stem
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area. Any pre-purchased tire that the team wishes to use at
an Event must be registered with Continental, at that Event,
at least 1 hour before they can be used. One set of scuffed
tires from the previous event may be added to the set limit at
each event. The scuffed set (if) carried over does not count
as part of the limit. These tires must be registered with
Continental prior to the first practice session. Once registered,
a tire may not be exchanged or substituted. If a car is
withdrawn from an event or retired from the race, the tires
allocated to that car may be reassigned to another car
provided the Event set limit is not exceeded. These tires will
need to be rescanned (1 hour before use) and remounted on
the appropriately marked wheels. The set limit will include
tires purchased at the Event and any additional tires the team
has registered with Continental at the beginning of the Event.
Rain tires are not regulated by this rule and are not included
in the set limit.
5-2.1 Tires are allocated to specific cars numbers and
cannot be used by another car under any circumstance
and must be mounted to the numbered
wheels for that car. Any team found with an unassigned
tire in the pits or on the car during any
session will be subject to penalty and loss of set
count.
5-3 Testing - GRAND-AM Road Racing will authorize the sale of
Continental tires for independent testing according to the
following criteria
5-3.1 On an individual case-by-case basis following a
written request from the Member for the purposes
of testing new drivers, shaking down new cars for
customers, GRAND-AM approved media events,
new customer introductions or other special cases.
GRAND-AM will be the sole entity deciding on
these cases and the decision will be final.
5-3.2 All tires authorized for independent testing and/or
on GRAND-AM test days can be used for any official
Rolex event practice, qualifying or race
sessions. These tires must be registered for the
event as outline in Section 5-2.
5-3.3 If it is determined by GRAND-AM Officials that any
form of unapproved testing and/or testing on non
series tires has taken place the entrant and drivers
will have their GRAND-AM privileges suspended for
a period of up to one year. The results of GRAND-
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AMs investigation and subsequent decisions are
final and cannot be appealed.
5-3.4 Each GRAND-AM Rolex Sports Car Series Entrant
is specifically prohibited from any independent
testing without GRAND-AM’s prior knowledge and
approval. This includes all forms of testing whether
it is on track or off. GRAND-AM may specify official
track tests during the course of the season. All
testing must be conducted on the series approved
Continental tires as delivered by the tire manufacturer.
5-4 Wheels
5-4.1 All wheels must be 18” diameter and have the car
number permanently marked on the wheel near the
valve stem.
5-4.2 Maximum wheel bead width is 11 inches front and
12 inches rear.
5-4.3 Wheel offset is free.
5-4.4 Mullti piece or single piece wheels are permitted.
Minimum wheel weight front; 19.84 lb (9.0 kg.),
minimum wheel weight rear; 20.94 lb. (9.5 kg.)
Weight does not include balance weights, valve
stem, TPMS or associated counterweight. Singlepiece
wheels permitted forged aluminum only.
5-4.5 Carbon fiber and wide-5 wheels are prohibited.
5-4.6 Wheel fans are prohibited.
5-4.7 Centerlock wheels are permitted.
5-4.8 Wheel centering or hub centric devices may be
added. They must be bolted or mechanically
retained to the hub, (no floating spacers). The
centering/locating device up to 3” in length must
not protrude beyond the outside wheel rim flange.
The wheels studs can be a maximum of 2.5” in
length and must be at least 1.5” shorter than the
centering device.
SECTION 6 - SUSPENSION AND STEERING
6-1 Suspension - (Prep 1)
6-1.1 The type, number of mounting points, components,
and uprights in the suspension must remain as
approved. Springs are free (maximum of 4)
provided they are the original type. The springing
medium must not consist solely of bolts located
through flexible bushings or mountings. There must
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e movement of the wheels to give suspension
travel in excess of any flexibility in the attachments.
6-1.2 All suspension components, with the exception of
parts specifically mentioned must be original equipment
for the approved model supplied by the
manufacturer or homologated per GRAND-AM
approval.
6-1.3 The position of the suspension mounting points on
the chassis may be moved or changed by not more
than 1”, while respecting the number and the original
type of the suspension.
6-1.4 Rubber joints may be replaced with uni-ball joints.
6-1.5 Shock Absorbers – Any shock absorber with a
maximum 3-way adjustment and with a maximum
of 1 remote canister is permitted. Cross-connected
shocks are prohibited.
6-1.6 Driver adjustable front and rear anti-roll bars are
permitted. The adjustment mechanism may only
consist of mechanically operated levers acting on
“blade” type adjusters or connector links moving on
the length of the anti-roll bar “leg” or “arm”. When
used, Anti-roll bars must be connected to the
suspension by a solid link. Links may be adjustable
in length but must be a fixed length during on-track
operation. The use of heim joints will be permitted.
No pre-loading of anti-roll bars is permitted.
6-1.7 Driver controlled electronic or hydraulic adjustments
of springs and shock absorbers are
prohibited.
6-1.8 No metallic, magnetic, or compressible fluids are
permitted.
6-1.9 Suspension Parts – All suspension parts must be
made from homogeneous metallic materials, unless
otherwise supplied as OEM. Chromium plating of
steel suspension parts is prohibited.
6-1.10 Steering – All steering components (except the
steering ratio and tie rod ends) must be original
equipment supplied by the manufacturer. These
parts may be strengthened provided the original
part can still be identified.
6-2 Suspension (Prep 2)
6-2.1 Suspension may be of 4-wheel independent
design, with only 1 spring and 1 shock absorber per
wheel permitted. Front-engine cars may use a “live
axle” rear end housing with a 3 or 4 link suspension
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attachment and a watts-link or panhard bar for axle
centering. The spring must be on the shock
absorber (coil-over style). Active Suspension is
prohibited. All cars may use the production
hub/bearing carrier/stub-axle. Uprights may only
be fabricated steel or machined aluminum billet ,
and must be submitted to GRAND-AM for approval.
Aluminum billet uprights, if used, must be symmetrical
side to side, and must be common to all 4
locations.
6-2.2 Front Suspension - only basic coil-over, double
wishbone type permitted. All suspension pick-up
points must be incorporated in the chassis framework.
Upper Control arm must be 8.25” to 10.5” in
length, fabricated steel.
Suspension must be of “outboard design”. Push
rod/pull rod, bell cranks or remote coil-over shocks
are prohibited.
6-2.3 Rear Suspension - All rear suspension and coil-over
mounting/pickup points must be to the main
chassis framework, the engine bell housing/adapter
plate, and/or the transaxle/suspension mounting
plate. No suspension mounting points are allowed
on/to the transaxle case. Push rod/pull rod, bell
cranks or remote coil-over shocks are prohibited.
6-2.4 Shock Absorbers - Any shock absorber with a
maximum 3-way adjustment with a maximum of 1
remote canister is permitted. Cross-connected
shocks are prohibited.
6-2.5 Driver adjustable front and rear anti-roll bars are
permitted. The adjustment mechanism may only
consist of mechanically operated levers acting on
“blade” type adjusters or connector links moving on
the length of the anti-roll bar “leg” or “arm”. When
used, Anti-roll bars must be connected to the
suspension by a solid link. Links may be adjustable
in length but must be a fixed length during on-track
operation. The use of heim joints will be permitted.
No pre-loading of anti-roll bars will be permitted.
6-2.6 Driver, controlled electronic/hydraulic adjustments
of springs and shock absorbers is prohibited.
6-2.7 Materials - Suspension members (A-arms, uprights)
must be made from magnetic steel material. Front
A-arms must be of an anti-intrusion design.
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6-2.8 Steering Components – Only front steering is
permitted. Rack and pinion only, no bell cranks,
only one tie rod per side from the spindle steering
arm to the steering rack.
6-2.9 Control arms, steering arms and sway bars are free.
SECTION 7 - BRAKES
7-1 Brake Rotors
7-1.1 Only magnetic cast iron or cast steel rotors.
7-1.2 Maximum rotor diameter: OEM diameter (Prep 1) or
355 mm, whichever is greater.
7-1.3 Must be made of magnetic cast iron or cast steel
(ferrous) material.
7-1.4 Minimum rotor diameter: OEM diameter (Prep 1) or
330 mm.
7-2 Brake Calipers –
7-2.1 Only a single GRAND-AM approved brake caliper of
aluminum alloy, with a maximum of 4 pistons and 2
pads per wheel is permitted. Maximum caliper
stack width is 78mm. front and rear.
7-2.2 Titanium pistons are permitted in brake calipers.
7-2.3 The brake pedal must operate all 4 wheels through
a dual master cylinder system.
7-2.4 Anti-lock/ABS brakes are prohibited.
7-2.5 Prep 1 cars may use approved Prep 2 brake
systems.
7-2.6 Brake hat material must be aluminum or steel alloy.
Titanium and gear driven hats are prohibited. Hat
offset is free.
7-3 Brake Master Cylinders
7-3.1 Master Cylinders are free.
SECTION 8 - FUEL SYSTEM
8-1 Fuel Tanks -
8-1.1 The fuel cell must be located entirely within 26.5” of
the longitudinal centerline of the car. It is recommended
that the fuel cell be mounted above and/or
behind the rear axle assembly. All other installations
require advance approval by GRAND-AM.
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8-1.2 The fuel cell(s) must be separated from the driver
and engine compartment by a metal firewall. Floor
to ceiling bulkheads are prohibited unless in original
configuration.
8-1.3 All fuel cell installations must be approved by
GRAND-AM prior to competition.
8-2 Fittings and Piping -
8-2.1 All fittings in the rubber fuel cell bladder (including
air vents, inlets, outlets, tank fillers, inter-tank
connectors and access openings) must be metal
fittings bonded into the bladder.
8-2.2 Fuel, cooling water or oil lines that pass through the
cockpit must be shielded hose with bulkhead
fittings.
8-2.3 No hydraulic fluid lines may have quick connectors
inside the cockpit.
8-3 Fuel Tank Fillers -
8-3.1 The tank filler and vent must not protrude beyond
the bodywork. The filler/vent must be situated in the
rear deck lid as far rearward as possible.
8-3.2 Fuel Capacity - The maximum fuel capacity is 16.5
gallons. 3 bolts must be drilled that fasten the fuel
cell top cover for sealing purposes.
8-3.3 GRAND-AM reserves the right to adjust fuel
capacity.
SECTION 9 - WEIGHT
9-1 Maximum permitted rear weight percentage for frontengine
cars, without fuel and driver, race ready is 51%.
SECTION 10 – MANUFACTURERS
10-1 A Grand-Am supplied windshield banner must be in place on
upper portion of windshield however If car manufacturer is
approved for the Manufacturers Championship, the vehicle
is required to display a manufacturer provided windshield
banner. If engine manufacturer is NOT approved for the
Manufacturers Championship, the vehicle is required to
display a GRAND-AM supplied windshield banner on front
windscreen.
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CONTINENTAL TIRE
SPORTS CAR CHALLENGE SERIES
141

CONTINENTAL TIRE SPORTS CAR CHALLENGE
REGULATIONS (“GCR”)
SECTION 1 – PURPOSE
1-1 Purpose - This category is designed to encourage race
competition of standard volume-produced cars and components,
sold in the U.S., to demonstrate the quality and
reliability of various makes and models, and to promote the
performance of drivers, manufacturers and other participants.
SECTION 2 - ELIGIBILITY
2-1 Eligibility – All automobiles, chassis, bodywork and/or
engines presented for competition to GRAND-AM must be
approved by GRAND-AM and conform to the
2-1.1 GRAND-AM will determine and publish a list of
specific eligible makes and models of automobiles.
Eligible cars will ordinarily be those described in
manufacturer’s catalogs, produced at a minimum
rate of 500 units per year, and available for
purchase through normal dealer outlets in the U.S.
30 days or more prior to competing in an Event.
Exemption from minimum production requirements
must be approved by GRAND-AM.
2-1.2 Equipment will not be considered as having been
approved by reason of having passed through
inspection unobserved.
2-2 Classes
2-2.1 GRAND-AM will recognize 2 classes of eligible
makes and models - Grand Sport (GS) and Street
Tuner (ST).
2-2.2 GRAND-AM may at its own discretion reclassify,
add or delete specific makes and models, or
change specifications.
2-2.3 Cars will remain eligible for competition for 5 years
after the last model goes out of production.
SPECIFICATIONS. GRAND-AM will list on the GRAND-AM website,
the approved cars and Specific Car Regulations for the GS and ST
class (“SCR”) according to the OEM’s make and model designation.
The SCR shall be part of the Regulations and shall govern if a
conflict between the GARR and the GS/ST-GCR occur. For specifications
not adequately described in the Regulations, GRAND-AM
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Officials may refer to maintenance manuals, spare part books,
general catalogs, and performance catalogs published by the OEM.
2-3 Recognition/Configuration
2-3.1 GRAND-AM may use any legitimate forms, publications,
original components and vehicles describing
the production OEM (original equipment manufacturer)
specifications of the eligible makes and
models in order to verify compliance with the
Regulations.
GRAND-AM may require a competitor to furnish
factory specifications prior to competing.
2-3.2 GRAND-AM may establish specifications that are
not per the OEM specification.
2-3.3 Each car must conform to the standard configuration
as delivered to U.S. consumers by the OEM
except where these Regulations allow or require
modifications.
2-3.4 GRAND-AM may require Competitors to exchange
or replace parts with those of another Competitor;
OEM’s replacement part or as otherwise stipulated
by GRAND-AM. No modification, alternate component,
or deletion is permitted unless specifically
allowed by these Regulations.
2-3.5 GRAND-AM will publish the required tire sizes for
each eligible make and model on the SCR.
2-3.6 ABS and Traction Control, if used, may only be
OEM for the car unless specified in Section 8.
These systems, if used, must be used in conjunction
with the “as delivered” OEM management
systems. Aftermarket ABS and Traction Control
systems and/or aftermarket ABS and Traction
Control management systems and/or processors
are prohibited.
GRAND-AM may specify an aftermarket ABS unit.
2-3.7 Data Acquisition Systems are permitted. A separate,
visible and traceable wiring harness must be
used for all data acquisition equipment. If used data
acquisition systems must, as a minimum, include
an accurate lap trigger signal, monitor engine RPM,
speed in MPH, physical track map position and
boost pressure (PSIG, on turbo cars).The system
may include engine monitoring functions, (including
oil pressure and temperature, water temperature,
etc.) Additional inputs may only include one longitudinal
and one lateral g load sensor, front and rear
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ake pressures, 4 wheel speed sensors, steering
input, gear selected, throttle position, and GPS.
(Note: This specifically does not mention chassis
parameters like shock travel, load cells, tire temp.,
brake temp., ride height sensors and other higher
order functions as these are beyond the scope of
the expectations for a GS and/or ST data acquisition
system as determined by the sanctioning
body.)
SECTION 3 - CHASSIS/BODYWORK REGULATIONS
3-1 Drive and Steering -
3-1.1 The automobiles must have 4 wheels not in line.
3-1.2 4-wheel steering is prohibited.
3-2 Added car weight -
3-2.1 All ballast must be carried in a ballast box
constructed of metal with a minimum thickness of
.100 and utilize the passenger seat mounts for
anchoring. The box must fully enclose the ballast
with a top that bolts in place. The ballast must also
be secured inside the ballast box.
3-2.2 It is prohibited to add or remove weight or change
to a lighter component during the race.
3-2.3 GRAND-AM reserves the right to check vehicle
weight at any time during an Event.
3-2.4 GRAND-AM reserves the right to adjust minimum
weights.
SECTION 4 - FUEL CELLS
4-1 Fuel Tank/Cell -
4-1.1 Fuel tanks must remain OEM unless an approved
fuel cell is used.
4-1.2 Safety fuel cell foam is permitted in the OEM fuel
tank.
4-1.3 Fuel cell installation must be approved by GRAND-
AM.
4-2 Fuel Fillers/Vents -
4-2.1 Fueling systems must conform to the GAR. Dry
break rigs must use 1.5” hose.
4-2.2 Cars may be fueled using single or double dry
break fueling systems. When using the dry break
system, both the filler and the air vent must be
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equipped with a leak proof probe dry break
coupling complying with the dead man principle.
The couplings must not incorporate any retaining
device when in an open position. If dual dry break
is used the receptacle must be accessed by
opening the trunk, hatch or OEM fuel door.
4-2.3 Modifications necessary for a dry break fuel system
installation are permitted. OEM fuel doors must be
operational.
4-2.4 Fuel Sample Ports - Competitors must install a fuel
sampling port at or just before the injector rails.
4-3 Fuel Lines -
4-3.1 Standard fuel hoses and lines may be replaced by
armored lines maintaining standard I.D. and
routing.
4-3.2 When flexible, all lines must have threaded connectors
and have armored braid.
4-4 Fuel Capacity -
4-4.1 Any device, system, procedure, construction or
design, the purpose and/or effect of which is any
increase whatsoever, even temporarily, of the total
fuel storage capacity beyond the maximum is
prohibited.
4-4.2 Fuel capacity is listed in the vehicle SCR and
GRAND-AM reserves the right to adjust the fuel
capacity.
SECTION 5 - MANDATORY SAFETY
EQUIPMENT/MODIFICATIONS
5-1 Roll Cage - All cars must be equipped with a roll cage made
from a minimum of 1.750 X .090 DOM seamless steel tubing
and constructed per normal industry standard. The roll cage
must include a horizontal bar between the main hoop
upright, at shoulder height, to facilitate seat
bracing/mounting. The roll cage structure may not extend
forward beyond the firewall. GS and ST cars present a variety
of different scenarios when it comes to roll cage construction.
Please feel free to contact GRAND-AM for clarification.
5-1.1 For GS and ST roadsters, the roll cage specification
is per Sections 10-3.1, 10-3.1-1.1, and 10-3.1-1.2
except for bars #16A, #4A and #8. Bar #6 is
optional.
See GAR Section 10-3.
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In addition to the driver’s side window net in GS
and ST roadsters, driver arm restraints must be
worn by the driver in such a fashion that the driver
cannot reach within 6” of the top of the roll cage.
5-1.2 Accepted FIA-spec cars may use 40.0 mm X 2.0
mm tubing.
5-2 Glass - The driver and passenger door glass must be
removed. All other greenhouse glass must remain as standard.
All headlight, taillight, side marker and turn signal
lenses must remain as standard unless otherwise allowed to
be removed. Windshield and rear glass supplemental clips or
straps may be added. Tinted glass is prohibited, all windows
may not have any graphic or decal fully or partially covering
them, except for die-cut driver identification and/or required
GRAND-AM decals. Damaged or cracked windshields or rear
glass are prohibited.
5-3 Other Safety Modifications
5-3.1 Hubcaps, wheel trim, spare wheel, jack and any
tools must be removed.
5-3.2 Air bags and related components must be
removed. Steering wheel locks must be removed.
5-3.3 Wheel lugs may be lengthened up to 2” in order to
accommodate thicker wheels. The lug type is free.
i.e. bolt vs. stud. The lug nut assembly may not
protrude more than 2” from the mounting face or
protrude beyond the outer plane of the wheel.
5-3.4 Catalytic converters must be removed.
SECTION 6 - AUTHORIZED MODIFICATIONS
6-1 Standard Components - The following authorized modifications
may be made but are not required. The standard OEM
components may be used at all times.
6-2 Brakes
6-2.1 GRAND-AM may allow a brake upgrade for specific
models. If allowed, only a single 2-piece (split into 2
halves) caliper of aluminum alloy with a maximum
of four pistons and 2 pads per wheel permitted.
6-2.2 The emergency brake system may be removed.
ABS brake components and system may be deactivated
and/or removed. ABS, if used, may only be
OEM system for car unless noted in vehicle SCR for
each car. Aftermarket ABS systems will be limited
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to either: Tevis system as authorized on BMW M3,
Nissan 370Z and Porsche 997, or Bosch system
as authorized on cars by being specifically listed in
SCR.
6-2.3 Brake rotor dust shields may be modified or
removed.
6-2.4 Fluid or fan cooling of the brakes is prohibited.
6-2.5 Brake pads, brake lines and hoses are free
provided standard I.D. and routing are maintained.
Quick couple brake line connectors are prohibited.
Friction material and backing plate dimensions
must maintain industry standards. Brake pad
backing plates must be steel.
6-2.6 Replacement brake rotors may be used provided
the replacement is of the same material and is
within 5% of the OEM rotor dimensions. If GRAND-
AM specifies a rotor size it may not be changed.
1-piece rotors may be replaced with 2-piece design
(hat and disc).
6-2.7 Air ducting to the front brakes is permitted either
through the front OEM parking or fog light openings
or the underside of the front bumper. Maximum 2
individual brake ducts front and rear are permitted.
6-2.8 Cars are allowed cockpit brake fluid bias adjustment.
6-3 Shocks, Springs, Suspension
6-3.1 No modifications to suspension components are
allowed unless stated in the SCR.7-3.2 Springs
may be replaced with commercially available aftermarket
or OEM units provided they are used
without modification to any other components.
Coil-over shocks may be used provided OEM pick
up points are utilized. AST (model AST-5220) are
mandatory on all GS and ST cars. The external
unmodified and internal AST components must be
maintained for their respective shocks. (This is to
clarify that no internal parts may be modified by
machining of any kind. Parts must be used as
supplied by AST for their respective shocks, in any
combination.) All GS and ST cars may use only
unmodified parts from the posted parts list. Parts
list will be posted on the GRAND-AM website.
6-3.3 Caster and camber adjustments may be made with
approved fitting of camber plates to an allowable
limit of negative 3 degrees or as specified by
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GRAND-AM. Localized modification of shock tower
is permitted to allow installation and obtaining
permitted camber.
6-3.4 Front and rear sway bars may be added or replaced
with aftermarket bolt on sway bars affixed to the
OEM sway bar mounting points.
Welded in sway bars are permitted unless OEM
in which case modifications are prohibited.
Cockpit/driver adjustable sway bars are not
permitted.
6-3.5 Any suspension bushing, sub-frame bushing,
engine mount, transmission mount or differential
mount may be replaced with non metallic substitutes
of the same dimensions that do not require
modification to any other component. The replacement
bushing cannot change / offset the location of
any component.
6-3.6 Unless noted in vehicle SCR no spherical rod ends
or similar applications are permitted with the
exception of shock and sway bar ends.
6-3.7 Offset ball joints may be used for camber adjustment.
6-4 Lights
6-4.1 Standard headlights and parking lights may be
removed and replaced with a plate of identical
shape and size of the lens - for daytime racing only.
OEM headlights must be used when lights are
required.
6-4.2 Standard headlight beams may be replaced with
aftermarket units of equal dimension.
6-4.3 For nighttime events a maximum of 2 front auxiliary
lights may be added in the grill area on the front of
the car.
6-4.4 Daytime running lights and back up lights may be
disconnected.
6-5 Exhaust System
6-5.1 All catalytic converters must be removed unless
otherwise stated.
6-5.2 Exhaust pipes must exit behind the driver and
extend to the perimeter of the bodywork.
6-5.3 The exhaust system on naturally aspirated cars is
free beyond the OEM exhaust manifold.
148

6-6 Turbocharging/Supercharging –
6-6.1 All forced induction vehicles will be assessed an
additional fee when registering for the season, and
install the following sensors:
Boost sensor and plumbing, wiring harness, and
GPS antenna as supplied by GRAND-AM.
The boost sensor may be collected by GRAND-
AM at any time to verify calibration and accuracy.
Replacement for monitoring equipment damaged in
use will be the responsibility of the Competitor.
The data acquisition modules will be randomly
assigned by GRAND-AM. Only a GRAND-AM
Official may access the information on the unit.
These units must be returned to at the conclusion
of each Event.
6-6.2 Competitors must install a 1/8 NPT (female) port
directly in the intake plenum. This location must be
approved by GRAND-AM. 12vdc power must be
supplied to the data recorder.
6-6.3 Competitors will be required to purchase and properly
install the harness and mounting system
provided by GRAND-AM. Competitors will provide
the necessary information and access for GRAND-
AM to design the wiring harness including providing
taps and connectors for non-driven wheel speed
sensor, (Note: All-wheel drive cars will have the
position of the wheel speed sensor determined by
GRAND-AM), RPM feed, independent intake manifold
pressure sensor, and throttle position sensor
(Note: An existing 0-5V sensor is acceptable for
TPS, otherwise one will need to be installed by the
competitor).
This harness must remain unmodified and unaltered
in any way. Any repairs must be completed
under the direct supervision of an Official. GRAND-
AM may require replacement rather than
authorizing any repair or addition.
6-6.4 All eligible turbocharged/supercharged cars must
compete using the standard OEM production
intake and exhaust system excluding the catalytic
converters and mufflers. Once removed, a replacement
pipe of the OEM diameter must be installed in
place of the catalytic converters and mufflers.
6-6.5 Cars will be required to use a GRAND-AM-supplied
data logger
6-6.6 Supercharged cars must use OEM pulleys
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6-6.7 Any device that controls boost levels other than the
production parts are prohibited unless mandated
by GRAND-AM.
6-6.8 GRAND-AM may mandate a mechanical boost
control.
6-6.9 GRAND-AM may establish alternate boost parameters
for turbocharged and supercharged cars at
Events. Specified boost limits are based on sea
level. GS and ST class boost limits will be adjusted
on a sliding scale per Event for locations above
250’ of average elevation change from sea level
6-6.9.1 Altitude correction formula for
turbocharged vehicles: ((Base limit x (1-
((Altitude/1000) x .036)))
6-6.9.2 Altitude for Tracks
• Austin, Texas = 500’
• Barber = 625’
• Indianapolis = 730’
• Kansas Speedway = 975’
• Lime Rock = 550’
• Mazda Raceway = 830’
• Mid-Ohio = 1375’
• Road America = 980’
• Road Atlanta = 975’
• Watkins Glen = 1600’
Tracks not listed are not affected by the compensation.
6-6.10 Competitors must provide a mounting for the
recorder box. The recorder must be mounted in the
cockpit in a location accessible for download
during pit stops.
6-7 Other Items Which May Be Substituted
6-7.1 Spark plugs, wires, distributors, ignition wiring and
batteries. Batteries must be of the same minimum
standard dimension of 10” long X 6.7” wide X 7.6”
tall. Batteries may not exceed the dimension of the
production battery for the car. Battery must be
standard OEM size as delivered or the above
minimum standard dimension.
6-7.2 Filters, fluids, lubricants
6-7.3 Belts, pulleys, hoses, wiper blades
6-7.4 Inside mirrors, fittings, nuts, bolts and fasteners
6-7.5 Gaskets, bearings, piston rings. Replacement head
gasket must be OEM thickness.
6-7.6 Fuel pressure regulators and fuel injectors
150

6-7.7 Radiators – Standard ducting must be retained with
no additions or changes. Areas that are left “open”
by the removal of items authorized in Section 7-12
and openings in the original duct may be closed
only by small, independent and flat pieces of metal
or plastic affixed to the original duct. These pieces
may have a flange of no more than 3/8” but may not
have any other bends for any reason. Production
radiator duct may be sealed to front of radiator with
foam rubber to close the gap.
6-8 Engine
6-8.1 Engine management systems may be replaced with
non-OEM systems with GRAND-AM approval. GS
and ST cars that choose to use an aftermarket ECU
must use the SPEC Bosch Ms4.3 ECU and wiring
harness. Spec ECU and wiring harnesses cannot
be modified in any way.
6-8.2 The following components may be tooled enough
for balancing only - pistons, rods, crankshaft,
harmonic balancer, flywheel and clutch.
6-8.3 The lightest rod and piston must remain unaltered.
6-8.4 The crankshaft and harmonic balancer may weigh
no less than the OEM specification.
6-8.5 Aftermarket pistons may be used provided they
remain identical in weight, dimension and form.
6-8.6 Allowed to overbore block up to .030 maximum.
6-8.7 The oil pan and oil pick up may be modified (not the
pump)
6-8.8 Engine oil Accu-sump system and valve is
permitted.
6-8.9 All pushrod engines may use aftermarket blueprinted
or adjustable length pushrods, provided
they are of the same material and configuration of
the original.
6-8.10 Other items that may be replaced include cam
gears, sprockets and chains.
6-8.11 The airbox and air filter are free on normally aspirated
cars unless otherwise specified by
GRAND-AM. Ram air induction is prohibited.
6-8.12 GRAND-AM will provide restrictors when required.
Competitors will be responsible for gaskets and
bolts to attach the restrictors. Return of the restrictors
is mandatory following each Event or fines will
be imposed.
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6-9 Steering Wheel/Steering System
6-9.1 The steering wheel may be replaced with any nonwood
steering wheel.
6-9.2 Steering wheel locks must be removed.
6-9.3 All air bags must be removed.
6-9.4 Power steering must be retained, if so equipped.
6-9.5 Quick release steering wheel adapters are
permitted with Prior approval form GRAND-AM.
6-10 Doors/Hood/Body Shell
6-10.1 Seam welding is permitted provided no metal is
added.
6-10.2 Jacking points are permitted. 4 plates not
exceeding 30 sq. in. may be added. Air jacks may
not be used at any time.
6-10.3 Hood and trunk pins must be installed with a cable
attaching the pin to the car. Original hood and trunk
latches must be removed. There must be a
minimum of 2 pins or latches on hood and trunk.
6-10.4 Original door latches must function as originally
installed.
6-10.5 Doors must remain unlocked at all times. The standard
door locks must be removed.
6-10.6 A metal panel of equal size and shape must replace
the transparent portion of a factory-installed
sunroof. Sunroof slide mechanism may be
removed.
6-10.7 It is permitted to install a removable strut between
the opposite strut tower points, front or rear, (all
classes) and permissible to run 2 symmetrical rearward
running struts from the shock towers to the
center of the front firewall.
6-10.8 It is permitted to remove inside bracing and panels
from the doors.
6-10.9 Driver cooling ducts are permitted in each open
side window provided they do not extend beyond
the inner plane of the window. Duct and mounting
surround size is 10” long by 6” high.
6-11 Ride Height/Track -
6-11.1 Minimum ride height is 3.5” measured anywhere on
the car.
6-11.2 Tires and wheels must be inside the bodywork from
axle centerline up as viewed from above.
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6-12 Items That May Be Removed
6-12.1 Air conditioners, compressors, hoses, condenser,
cruise control and related components may be
removed.
6-12.2 Radios, antennas, and stereo system components
may be removed provided a metal plate covers the
remaining hole.
6-12.3 Inner fender liners may be removed.
6-12.4 Sun visors may be removed. Interior headliners,
carpeting, passenger and rear seats, trim panels,
center consoles, inner front door panels and door
winding mechanisms may be removed.
6-13 Gearbox, Differential, Drive train
6-13.1 Driveshaft - On front-engine rear-wheel drive vehicles,
a sturdy metal strap must be mounted to the
chassis to prevent the drive shaft from leaving the
vehicle in the Event of drive shaft coupling failure.
6-13.2 GRAND-AM will approve an aftermarket manual
transmission, listed in the SCR, for makes and
models available only with an automatic transmission.
6-13.3 Only manual transmissions are permitted.
6-13.4 GRAND-AM will specify any alternate gear ratios in
the SCR.
6-13.5 Limited slip or posi-traction differentials are
permitted.
6-13.6 On manual transmission models, the clutch may be
replaced with an aftermarket clutch that is interchangeable
(using the same mounting holes) and
the same dimension of the OEM component.
6-13.7 Original flywheel/clutch assembly may be replaced
with an aftermarket assembly provided it is within
80% of the weight of the original and utilizes the
OEM starter motor.
6-13.8 Installation of a ballistic flywheel/transmission
blanket is recommended.
6-14 Tires
6-14.1 Official Tire - The Official Tire for the GS and ST
classes is the Continental Tire performance radial
tire. No other tire may be used. Contact:
Continental Tire, www.continentalrace.com TIRES
MUST BE ORDERED 2 WEEKS PRIOR TO THE
EVENT.
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SECTION 7 - VEHICLE ELIGIBILITY AND NOTES
7-1 New model or vehicle eligibility requests may be made
directly to GRAND-AM at anytime. New approvals will not be
eligible for competition until such time as GRAND-AM
publishes a bulletin listing any new additions.
7-2 GRAND-AM will approve cars for competition based on findings
that determine a cars capability to be competitive.
7-3 The appropriate GRAND-AM supplied windshield banner
must be in place on upper portion of windshield. If car manufacturer
is approved for the Manufacturers Championship,
the vehicle is required to display manufacturer provided
decals on each side of the windshield banner. If car manufacturer
is NOT approved for the Manufacturer Championship,
the vehicle is required to display Continental Tire Sports Car
series decals on each side of the windshield banner.
http://www.grand-am.com/news/index.cfm?cid=13517&rr=no
154

7-3 Grand Sport (GS)
GS Car
Aston Martin Vantage
Audi S4
BMW M3 E92 2 door
Chevrolet Camaro
Dodge Challenger
Ford Mustang FR500C 5.0 2009
Ford Mustang Boss 302R
Nissan 370Z (3.7)
Porsche 997 Carrera S (3.8) 2008
Porsche 997 Carrera S (3.8) Direct Injected
Porsche Cayman S 3.4 L
Subaru WRX STi
7-4 Street Tuner (ST)
ST Car
Audi TT 3.2 L AWD
Acura TSX L 2.4 L 2008
BMW 128i (3.0)
BMW 328i (E90) 4 Door
BMW 328i (F30) 4 Door
Chevrolet Cobalt SS (2.0) 2008
Ford Focus ST
Honda Accord
Honda Civic Si (2.0) USDM 2011
Honda Civic Si 2DR & 4DR JDM 2011
Honda Civic Si 2.4L
Hyundai Genesis
Kia Forte Koup
Mazda Speed 3
Mazda MX 5 Miata
Mazda 6 (3.0) 2008
Mazda RX8 2011
Mercedes C300 Sport Sedan
Nissan Altima V6
Porsche Boxster (2.7) 987 based 2008
Scion TC 2009
Scion FR-S
Subaru BR-Z
155

Subaru Legacy Spec B Sedan (2.5) 6 speed 2009
Volkswagen GTI (MK5) 2.0 2009
Volkswagen Jetta Gli (A5) 2009
Volkswagen GTI (MK6) 2.0
Volkswagon Jetta (A6) 2.0
156