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2013 GRAND-AM Rulebook

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4-3 Detailed Engine Requirements ..................................... 90<br />

SECTION 5 –DRIVETRAIN<br />

5-1 Approved Models ...........................................................91<br />

5-2 Clutch/Flywheel ..............................................................91<br />

5-3 Maximum Forward Gears ...............................................91<br />

5-4 Sequential Gear Change ................................................91<br />

5-5 Gear Ratios.................................................................... 91<br />

5-6 Bell Housing .................................................................. 91<br />

5-7 Axle Retention ................................................................91<br />

5-8 Attenuator .......................................................................92<br />

SECTION 6 – WHEELS & TIRES<br />

6-1 Official Tire......................................................................92<br />

6-2 Tire Control .....................................................................92<br />

6-3 Tire Testing......................................................................93<br />

6-4 Wheels ............................................................................93<br />

SECTION 7 –SUSPENSION<br />

7-1 Design.............................................................................94<br />

7-2 Rear Suspension ........................................................... 94<br />

7-3 Active Suspension ......................................................... 94<br />

7-4 Shock Absorbers ........................................................... 94<br />

SECTION 8 – CHASSIS/BODY DIMENSIONS<br />

8-1 Basic Dimensions ...........................................................95<br />

SECTION 9 - BRAKES<br />

9-1 Rotors .............................................................................95<br />

9-2 Calipers.......................................................................... 96<br />

9-3 Brake Hat....................................................................... 96<br />

9-4 Rolex 24 Brake Systems ................................................96<br />

9-5 DP Brake Systems..........................................................96<br />

SECTION 10 – FUEL SYSTEM<br />

10-1 Specification ...................................................................96<br />

10-2 Location......................................................................... 97<br />

10-3 Fueling ........................................................................... 97<br />

10-4 Fuel Capacity................................................................. 97<br />

SECTION 11 - TELEMETRY/DATA RECORDING<br />

11-1 Data Recorder.................................................................97<br />

SECTION 12 - IDENTIFICATION<br />

12-1 Car Identification ............................................................97<br />

12-2 Engine Identification .......................................................98<br />

SECTION 13 - SAFETY EQUIPMENT<br />

13-1 Fire Extinguishers ...........................................................98<br />

13-2 Wheel Tethers .................................................................99<br />

GT REGULATIONS<br />

SECTION 1 - General Class Explanation and Purpose<br />

1-1 Purpose .......................................................................102<br />

1-2 Specifications................................................................102<br />

1-3 Categories.....................................................................102<br />

ix

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