Grand Touring (GT) Specific Car Regulations 2013 ... - Grand Am
Grand Touring (GT) Specific Car Regulations 2013 ... - Grand Am
Grand Touring (GT) Specific Car Regulations 2013 ... - Grand Am
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<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
As of January 18, <strong>2013</strong><br />
Table of Contents<br />
<strong>Grand</strong> <strong>Touring</strong> <strong>GT</strong><br />
Page 2<br />
Aston Martin Vantage (Prep 1)<br />
Audi R8 GRAND-AM (Prep 1)<br />
Page 3<br />
BMW M3 E92 (Prep 2)<br />
BMW Z4 (Prep 1)<br />
Page 4<br />
Chevrolet Camaro (Prep 2)<br />
Chevrolet Corvette C6 (Prep 1 and Prep 2)<br />
Page 5<br />
Ferrari 458 <strong>GT</strong> ITALIA GRAND-AM (Prep 1)<br />
Page 6<br />
Ford Mustang 2007-2010(Prep 2)<br />
Infiniti G37 (Prep 2)<br />
Page 7<br />
Jaguar XK (Prep 1)<br />
Lamborghini Gallardo (Prep 1)<br />
Page 8<br />
Lexus LFA (Prep 1)<br />
Page 9<br />
Mazda RX8 (Prep 2)<br />
Page 10<br />
Mercedes SLS (Prep 1)<br />
Nissan 370 Z (Prep 1 and 2)<br />
Nissan <strong>GT</strong>-R<br />
Page 11<br />
Page 12<br />
Porsche <strong>GT</strong>3 Cup 2009, 2010 (GRAND-AM) (Prep 1)<br />
Porsche <strong>GT</strong>3 Cup 2011 (Prep 1)<br />
Page 13<br />
Porsche 997 “<strong>GT</strong>C” Spec (Prep 1)<br />
Viper ACR Competition Coup (Prep 1)
Aston Martin Vantage <strong>Specific</strong>ations TBD<br />
Weight:<br />
Tire size:<br />
Approved Modifications:<br />
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Audi R8 GRAND-AM (Prep 1)<br />
Weight: 2775lb<br />
Tire size: 305/650R18 front 325/710R18 rear.<br />
Maximum RPM 8600<br />
Maximum fuel capacity 19.5 gal.<br />
All cars must be unmodified from FIA <strong>GT</strong>3 homologation as approved GRAND-AM modifications and built by Audi Sport,<br />
including engine ECUs and restrictors. Restrictor size – 42.0mm (x2)<br />
Maximum front splitter dimension 1.5 inches from vertical projection outline.<br />
Flat under tray in front of front wheels.<br />
Complete rear wing height w/ end plates cannot exceed roof height.<br />
Complete rear wing may exceed the rear-most perimeter of the bodywork 4” when viewed from above.<br />
ABS controller may be retained for ECU communication.<br />
ABS Brakes not permitted.<br />
Traction control not permitted.<br />
Maximum front brake rotor dia. 370mm, maximum rear brake rotor dia. 355mm.<br />
Fuel rig may be fitted with a black 1.1” inch restrictor used to connect the clear 1.5-inch ID fuel hose to the clear 2 ¼ inch<br />
ID hose on the dry break fueling probe.<br />
Approved Modifications:<br />
1. Permitted Catalyst Exhaust system.<br />
2. May eliminate and replace electronic engine mounts.<br />
3. Single differential ramp set of 30/45<br />
4. Vented rear window permitted.<br />
5. Single lug hubs are approved.<br />
6. Rear <strong>GT</strong>3 diffuser with blocker panels on outer tunnels<br />
7. -A- Pillar wicker<br />
8. Permitted Clutch p/n 42A 141 011 A, flywheel p/n 42A 105 270 with ring gear adapter 42A 105 221 and clutch release<br />
bearing 42A 141 671 A.<br />
9. “Straight-through” exhaust may be used. (Sound regulations must still be met)<br />
10. Permitted front fender louver Part# 42A 821 275 (L), 42A 821 276 (R)<br />
11. Permitted front dive planes Part# 42A 807 945<br />
12. Permitted radiator exit wicker Part# 42A 823 319 C (Must be trimmed to ½” above standard hood opening.)<br />
13. Permitted wing mount Part# 42A 827 723 K (L), 42A 827 724 K (R)<br />
14. Permitted composite doors.<br />
15. Permitted Staubli fuel delivery dry break. Must use black 1.1” restrictor machined to insert into the fuel supply hose<br />
immediately preceding the filler.<br />
2
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
BMW M3 E92 (Prep 2)<br />
Weight: 2615 lb. or 2720 w/ DP transaxle<br />
Tire size: 305/650R18 front 325/680R18 rear<br />
Maximum fuel capacity 18.5 gal.<br />
Maximum front splitter dimension 3 inches.<br />
Maximum RPM 7300.<br />
Fuel rig must be fitted with a purple .947 inch restrictor used to connect the clear 1.5-inch ID fuel hose to the clear 2 ¼<br />
inch ID hose on the dry break fueling probe.<br />
Approved Modifications:<br />
Stock M5 5.0 L V8 engine with the following Dinan camshafts Int: DC526-0005 + 0007 Ex: DC526-0006 + 0008.<br />
Piston rod and pin 936 gms.<br />
Allowed maximum engine set-back of 3 inches.<br />
5-speed transmission.<br />
Maximum front Brake rotor Diameter 355mm<br />
Brake pad & caliper as with 330mm Rotor<br />
BMW Z4 (Prep 1)<br />
<strong>Specific</strong>ations TBD<br />
3
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Chevrolet Camaro<br />
Weight: Minimum weight 2665 lb or 2772 lb with DP transaxle<br />
Tire size: 305/650R18 front 325/680R18 rear.<br />
Maximum RPM TBD<br />
Maximum front splitter dimension 3 inches.<br />
Maximum Fuel capacity 18.5 gal.<br />
Fuel rig must be fitted with a purple .947 inch restrictor used to connect the clear 1.5 inch ID fuel hose to the clear 2 ¼<br />
inch ID hose on the dry break fueling probe.<br />
Approved Modifications:<br />
Stock LS-3 (specifications available from GRAND-AM office with approved camshaft, main caps LS3 throttle body @<br />
90mm, and pistons.)<br />
Five-speed transmission<br />
Allowed #2301-E2-0900R&L front spindle<br />
Allowed #26E1-0201W upper control arm assembly<br />
Maximum front Brake rotor Diameter 355mm<br />
Brake pad & caliper as with 330mm Rotor<br />
Chevrolet Corvette C6 ( Prep1 and Prep 2 )<br />
Weight: Minimum weight Prep 1 is 2590 lb., Prep 2 is 2600 lb. with solid axle, 2700 lb. with IRS or 2808 w/ DP transaxle<br />
Tire size: 305/650R18 front 325/680R18 rear.<br />
Maximum RPM TBD<br />
Stock LS-3 (specifications available from GRAND-AM office with approved camshaft, main caps and pistons.)<br />
Complete rear wing height w/ end plates cannot exceed roof height. Stock LS-3 (specifications available from GRAND-AM<br />
office with approved camshaft, main caps LS3 throttle body @ 90mm, and pistons.)<br />
Prep 1 cars are permitted a 3” maximum front splitter dimension.<br />
Maximum Fuel capacity 18.5 gal.<br />
Fuel rig must be fitted with a black 1.1” inch restrictor used to connect the clear1.5-inch ID fuel hose to the clear 2 ¼ inch<br />
hose on the dry-break fueling probe. (Prep 1 w/ saddle tank only)<br />
Approved Modifications:<br />
Prep 1 six-speed transmission, prep 2 five-speed transmission. Prep 1 cars permitted to use CG46 EMCO replacement<br />
transmission Prep 1 cars may use maximum 14” front brake rotor<br />
C6 bodywork allowed with 105.7 inch wheel base.<br />
Allowed to use non-OE brake pedals and cylinders.<br />
Prep 1 Corvettes may use 1” drop spindle<br />
May use side of rear back window for NACA duct mounts.<br />
4
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Ferrari 458 <strong>GT</strong> ITALIA GRAND-AM Prep 1<br />
Weight: 2885<br />
Tire size: 305/650R18 front 325/710R19 rear.<br />
Maximum RPM 8200<br />
Maximum fuel capacity 18.5 gal.<br />
All cars must be unmodified from FIA <strong>GT</strong>3 homologation as approved by GRAND-AM modifications and built by<br />
Michelotto Ferrari, including engine ECUs and restrictors.<br />
Must use 55.5mm (x2) restrictors as supplied<br />
Maximum front splitter dimension 2.0 inches from vertical projection outline.<br />
Flat bottom splitter with step as submitted.<br />
ABS controller may be retained for ECU communication<br />
ABS Brakes not permitted<br />
Traction control not permitted<br />
Maximum front Brake Rotor Diameter 380mm - Maximum rear Brake Rotor Diameter 355mm<br />
Fuel rig may be fitted with a Blue 1 inch restrictor used to connect the clear 1.5-inch ID fuel hose to the clear 2 ¼ inch ID<br />
hose on the dry break fueling probe.<br />
Approved Modifications:<br />
Single lug hubs are approved.<br />
5
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Ford Mustang 2007-2010(Prep 2), 2011-2012 Boss 302 (Prep 2)<br />
Weight: 2650 lbs or 2756 with DP transaxle. 2575 with solid axle.<br />
Tire size: 305/650R18 front 325/680R18 rear.<br />
Maximum RPM TBD<br />
5.0 Ford Performance “cammer” engine # M-6007-<strong>GT</strong>50 – or Boss 302 Engine Part #M-6007-M50B with Roush Yates<br />
Racing Engines camshaft in fixed position with restrictor.<br />
For Boss 302 Engine Only: 5-speed transmission – max 7000 RPM, 4 speed transmission – max 7500 RPM<br />
Must use exhaust as supplied with engine.<br />
Maximum front Brake rotor Diameter 355mm<br />
Brake pad & caliper as with 330mm Rotor<br />
Maximum Fuel capacity 18.5 gals<br />
Approved Modifications:<br />
Front spark plug allowed to be 3 inches behind front spindle C/L<br />
Hyundai Genesis<br />
<strong>Specific</strong>ations – TBD<br />
Weight:<br />
Tire size:<br />
Approved Modifications:<br />
Infiniti G37 (Prep 2)<br />
Weight: Minimum weight 2540 lbs. or 2642 with DP transaxles.<br />
Tire size: 305/650R18 front 325/680R18 rear.<br />
Q45 engine. 10.5 :1 compression. Intake cam .416 lift @ 262 duration. Exhaust cam .376 lift @ 245 duration.<br />
Approved Modifications:<br />
May modify throttle body to accept manual linkage.<br />
6
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Jaguar XK<br />
<strong>Specific</strong>ations - TBD.<br />
Weight:<br />
Tire size:<br />
Approved Modifications:<br />
Lamborghini Gallardo<br />
Weight: <strong>Specific</strong>ations – TBD<br />
Tire size: 305/650R18 front<br />
Approved Modifications:<br />
325/710R18 rear.<br />
7
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Lexus LFA<br />
<strong>Specific</strong>ations - TBD<br />
Weight:<br />
Tire size:<br />
Approved Modifications:<br />
8
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Mazda RX8 (Prep 2)<br />
Weight: Minimum weight 2260 lbs or 2350 lbs with DP transaxle.<br />
Tire size: 285/645R18 front 305/660R18 rear.<br />
Maximum fuel capacity 19.5 gallons.<br />
20B Cosmo three rotor (Mazda Spec parts).<br />
2.0 liter, 9.7 compression ratio, 3-52mm throttle bodies, maximum of 6 injectors, maximum fuel pressure 4.2 bar, free.<br />
Maximum RPM 8900. Call GRAND-AM for parts list at386-310-6500.<br />
Six-speed transmission.<br />
Maximum body width is 73.5 inches.<br />
Engine set-back 5.125 inches from spindle centerline to 1 st spark plug.<br />
Complete rear wing height w/ end plates cannot exceed roof height.<br />
Fuel rig must be fitted with a Green .970 inch restrictor used to connect the clear 1.5-inch ID fuel hose to the clear 2 ¼<br />
inch ID hose on the dry break fueling probe.<br />
<strong>Car</strong> must have 2 ½ inches minimum ground clearance.<br />
Approved Modifications:<br />
Intake manifold is Free<br />
May use oil in fuel<br />
Allowed larger/higher exhaust position.<br />
2009 Mazda RX-8 “R3” bodywork permitted with 3” maximum front splitter dimension.<br />
9
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Mercedes SLS (Prep 2)<br />
<strong>Specific</strong>ations - TBD.<br />
Weight:<br />
Tire size:<br />
Approved Modifications:<br />
Nissan 370 Z (Prep 1 and 2) (Final year of eligibility for 350Z)<br />
Weight: Minimum weight prep 1: 2600 lbs.<br />
Tire size: 305/650R18 front 325/680R18 rear.<br />
3.5 Liter VQ35DE,13:1 compression,RRZ31-Spec 2 heads, 515/264 In,<br />
485/250 Ex. Camshaft, 38 lb crank piston /rod 902 gms.<br />
Approved Modifications:<br />
10
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
Porsche <strong>GT</strong>3 Cup, 2010 (GRAND-AM) (Prep 1)<br />
3.8L Engine eligible. Engine must be unmodified and sealed by PMNA<br />
Weight: Minimum weight 2600 lbs.<br />
Maximum RPM TBD 4.0L Engine approved. Engine must be unmodified and sealed by PMNA<br />
Weight: Minimum weight 2600 lbs.<br />
Must run 63.5mm restrictor as supplied by GRAND-AM<br />
Maximum RPM TBD<br />
Tire size: 285/645R18 front 325/710R18 rear.<br />
OEM fuel cell location required.<br />
Max fuel capacity 17.5 gal<br />
ABS not permitted.<br />
All cars must use the upgraded rear deck lid wing supports as supplied by PMNA.<br />
Must use OEM roof panel, engine location, and suspension pick up points.<br />
Front dive planes are not permitted.<br />
Maximum rear body width 75 inches.<br />
<strong>Car</strong> must have 2.5 inches minimum ground clearance.<br />
Approved Modifications:<br />
Allowed #996 352 425 9A and #996 352 426 9A rear calipers Rear fascia vents may be open.<br />
Allowed production Porsche <strong>GT</strong>3 Front brake caliper<br />
Lower Rear inner fender wheel house may be modified for suspension travel clearance<br />
Permitted 997-331-041-9C Rear Control arm, 997-331-047-9E “dogbone” top front & 997-331-047-9F “dogbone” top rear.<br />
Permitted wing support modification as outlined in Porsche Rear Deck Lid and Wing Support Mounting Bulletin<br />
Porsche <strong>GT</strong>3 Cup 2011-<strong>2013</strong> (Prep 1)<br />
3.8L Engine eligible. Engine must be unmodified and sealed by PMNA<br />
Weight: Minimum weight 2600 lbs. 4.0L Engine approved. Engine must be unmodified and sealed by PMNA<br />
Weight: Minimum weight 2600 lb.<br />
Must run 63.5mm restrictor as supplied<br />
Maximum RPM TBD<br />
Tire size: 285/645R18 front 325/710R18 rear.<br />
Must run 2009 splitter.<br />
OEM fuel cell location required.<br />
Max fuel capacity 17.5 gal<br />
ABS not permitted.<br />
All cars must use the upgraded rear deck lid wing supports as supplied by PMNA.<br />
Must use OEM roof panel, engine location, and suspension pick up points.<br />
Must run entirety of 2011 and newer body<br />
Front dive planes are not permitted.<br />
Maximum rear body width is 75 inches.<br />
<strong>Car</strong> must have 2.5 inches minimum ground clearance.<br />
Approved Modifications:<br />
Allowed #996 352 425 9A and #996 352 426 9A rear calipers<br />
Allowed production Porsche <strong>GT</strong>3 Front brake caliper<br />
Rear fascia vents may be open.<br />
Rear inner fender wheel house may be modified for suspension travel clearance.<br />
Permitted 997-331-041-9C Rear Control arm, 997-331-047-9E “dogbone” top front & 997-331-047-9F “dogbone” top rear<br />
Permitted wing support modification as outlined in Porsche Rear Deck Lid and Wing Support Mounting Bulletin<br />
11
Porsche 997 “<strong>GT</strong>C” Spec (Prep 1 )<br />
Weight: Minimum weight 2600 lb.<br />
Tire size: 285/645/18 Front 325/680R18 Rear<br />
Max fuel capacity 17.5 gal<br />
Must use GRAND-AM wing.<br />
<strong>Car</strong> must have 2.5 inches minimum ground clearance.<br />
<strong>Grand</strong> <strong>Touring</strong> (<strong>GT</strong>) <strong>Specific</strong> <strong>Car</strong> <strong>Regulations</strong> <strong>2013</strong><br />
SRT Viper ACR Competition Coupe (Prep 1)<br />
Weight: 2900<br />
Tire size: 305/650R18 Front 325/680R18 Rear<br />
Maximum fuel capacity 19.5 gal.<br />
Engine must be as submitted with ”<strong>Grand</strong>-<strong>Am</strong>” Calibration and Restrictor<br />
Maximum RPM TBD<br />
Permitted 6 Speed Transmission<br />
Maximum Front Splitter dimension 1.5 Inches from vertical projection outline<br />
Flat Under tray in front of front wheels<br />
Vents in hood and fenders must be blocked off per <strong>Grand</strong>-<strong>Am</strong> instruction<br />
Fuel rig must be fitted with a green .970 inch restrictor used to connect the clear 1.5-inch ID fuel hose to the clear 2 ¼<br />
inch ID hose on the dry break fueling probe.<br />
Approved Modifications:<br />
12
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