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Other Sanctioned
Series:
2004 SGS Class Rules
Word Version
PDF Version
The 2004 Rolex SGS Class
As of 10/15/2003
SECTION 1 - APPROVED MODELS
1-1 Approved Models
1-2 Eligible Models
SECTION 2 - DETAILED SPECIFICATIONS
2-1 Chevrolet Corvette C5 Z06 (5.7) 1999-2002
2-2 Chevrolet Corvette Z06 (5.7) 2003
2-3 Dodge Viper ACR (8.0) 1995-2001
2-4 Ferrari 360 Challenge
2-5 Porsche GT3 Cup (3.6) 2000-2002
2-6 Porsche GT3 Cup (3.6) 2003
2-7 Saleen Mustang SR (5.8) 2000-2001
2-8 Steeda Q400R Mustang (4.6) 2002
SECTION 3 - CAR PREPARATION
3-1 Car Preparation
SECTION 4 - TIRES
4-1 Official Tire
SGS REGULATIONS
General Class Explanation and Purpose
Super Grand Sport (SGS) is based directly on the 2003 GS I Street Stock Category automobile regulations designed to encourage the development of competition vehicles built from series produced production vehicles.
SGS will compete as a separate class in the 2004 Rolex Sports Car Series with separate driver and manufacturer championships.
SECTION 1 - APPROVED MODELS
1-1 Approved Models - Grand American has developed these specifications for competition automobiles that will participate in the category titled "SGS". Cars must have been in production for road use/or meet homologation criteria, and have been/or be for sale to the public in a regular dealer offering. A Manufacturer or Tuner must present their automobile before being approved.
1-2 The following cars are recognized as eligible models
1-2.1 Chevrolet Corvette C5 Z06 (5.7) 1999-2002
1-2.2 Chevrolet Corvette Z06 (5.7) 2003
1-2.3 Dodge Viper ACR (8.0) 1995-2001
1-2.4 Ferrari 360 Challenge (3.6) 2000-2002
1-2.5 Porsche GT3 Cup (3.6)
1-2.6 Saleen Mustang SR (5.8) 2000-2001
1-2.7 Steeda Q400R Mustang (4.6) 2002
SECTION 2 - DETAILED SPECIFICATIONS
2-1 Chevrolet Corvette C5 Z06 (5.7) 1999-2002
2-1.1 Final Drive - 3.73:1
2-1.2 Fuel Capacity - 25.0
2-1.3 Minimum Weight - 2925
2-1.4 RPM Limit - 6500
2-1.5 Tire size: 285/30/18 front, 335/30/18 rear, 285/30/18 front wet, 305/30/18 rear wet.
2-1.6 Camshaft kit #12480110.
2-1.7 Injector #245008208.
2-1.8 Rear upper control arm P&M # C5W-1F-300 w/plastic bushings.
2-1.9 Two-stage external oil scavenge pump allowed.
2-1.10 Aftermarket crank damper allowed.
2-1.11 GM Performance T2 body kit approved.
2-1.12 Plastic rear window allowed.
2-1.13 Up to two-inch rear gurney lip is allowed.
2-1.14 Grand American Spec Crawford rear wing (reference CAR BODY REQUIREMENTS section of the GT regulations) is allowed installed on the rear deck no higher then the roofline and cannot extend beyond the rear bodywork.
2-1.15 Air Jacks are permitted
2-2 Chevrolet Corvette Z06 (5.7) 2003
2-2.1 Final Drive - 3.73:1
2-2.2 Fuel Capacity - 25.0
2-2.3 Minimum Weight - 2700
2-2.4 Tire size: 285/30/18 front, 335/30 /18 rear, 305/30 /18 rear wet.
2-2.5 Two-stage external oil scavenge pump allowed.
2-2.6 Headers allowed.
2-2.7 Lightweight clutch allowed.
2-2.8 Lightweight doors, hood, roof, deck allowed.
2-2.9 Grand American Spec Crawford rear wing (reference CAR BODY REQUIREMENTS section of the GT regulations) is allowed installed on the rear deck no higher then the roofline and cannot extend beyond the rear bodywork.
2-2.10 Air Jacks are permitted
2-3 Dodge Viper ACR (8.0) 1995-2001
2-3.1 Final Drive - 3.07:1
2-3.2 Fuel Capacity - 25.0
2-3.3 Minimum Weight - 3000
2-3.4 Tire size: 305/30/18 front, 335/30/18 rear, 305/30/18 front wet, 305/30/18 rear wet.
2-3.5 Inlet air restrictors 2 required at 55mm.
2-3.6 Upper control arms and rear toe link mounts are allowed to be reinforced.
2-3.7 Air Jacks are permitted
2-4 Ferrari 360 Challenge (3.6) 2000-2002
2-4.1 Final Drive - TBD
2-4.2 Fuel Capacity - 25.0
2-4.3 Minimum Weight - 2700
2-4.4 Tire Size: 245/40/18 front, 305/30/18 rear wet and dry
2-4.5 Engine and ECU must remain per Ferrari Challenge specification.
2-4.6 Grand American Spec Crawford rear wing (reference CAR BODY REQUIREMENTS section of the GT regulations) is allowed installed on the rear deck no higher then the roofline and cannot extend beyond the rear bodywork.
2-4.7 Air jacks are permitted.
2-5 Porsche GT3 Cup (3.6) 2000-2002
2-5.1 Final Drive - 4.00:1
2-5.2 Fuel Capacity - 25.0
2-5.3 Minimum Weight - 2600
2-5.4 Exempt from minimum production rule.
2-5.5 Tire size: 245/40/18 front, 305/30/18 rear wet and dry.
2-5.6 Engine and ECU must be sealed by Porsche Motorsports NA.
2-5.7 Must replace OEM centerlock wheel hubs with 5-stud hubs.
2-5.8 The rear upper and lower tow links may be changed to spherical ends.
2-5.9 Brakes - Allowed brake pad/rotor maximum stack height: TBD. Allowed two-piece four-piston caliper: TBD.
2-5.10 Standard Porsche GT3 rear wing is allowed.
2-5.11 Air Jacks are permitted
2-6 Porsche GT3 Cup (3.6) 2003
2-6.1 Final Drive - 4.00:1
2-6.2 Fuel Capacity - 25.0
2-6.3 Minimum Weight - 2700
2-6.4 Exempt from minimum production rule.
2-6.5 Engine and ECU must be sealed by Porsche Motorsports NA.
2-6.6 Must replace OEM centerlock wheel hubs with 5-stud hubs.
2-6.7 Tire size: 245/40/18 front, 305/30/18 rear wet and dry.
2-6.8 Standard Porsche GT3 rear wing is allowed.
2-6.9 The rear upper and lower tow links may be changed to spherical ends.
2-6.10 Brakes - Allowed brake pad/rotor maximum stack height: TBD. Allowed two-piece four-piston caliper: TBD.
2-6.11 Air Jacks are permitted
2-6.12 2002 model year 4th, 5th and 6th gear ratios may be used at Daytona International Speedway.
2-7 Saleen Mustang SR (5.8) 2000-2001
2-7.1 Final Drive - 3.73:1
2-7.2 Fuel Capacity - 25.0
2-7.3 Minimum Weight - 2925
2-7.4 Exempt from minimum production rule.
2-7.5 Tire size: 285/30/18 front, 335/30/18 rear, 275/35/18 front wet, 305/30/18 rear wet.
2-7.6 Air Jacks are permitted
2-8 Steeda Q400R Mustang (4.6) 2002
2-8.1 Final Drive - 3.73:1
2-8.2 Fuel Capacity - 25.0
2-8.3 Minimum Weight - 2800
2-8.4 Exempt from minimum production rule.
2-8.5 Tire size: 285/30/18 front, 335/30/18 rear.
2-8.6 Boost 16 psi.
2-8.7 Air Jacks are permitted
SECTION 3 - CAR PREPARATION
3-1 Car preparation is per the 2004 Grand Am Cup regulations along with the specific modifications allowed in Section 2 above.
SECTION 4 - TIRES
4-1 Official Tire - The official tire brand for the 2004 Rolex SGS class is Hoosier. The spec tire for SGS is the Hoosier "SGS" radial slick. No other tire may be used. Contact: Hoosier Racing Tire (574) 784-3152.
Other Sanctioned
Series:
2004 SGS Class Rules
Word Version
PDF Version
The 2004 Rolex SGS Class
As of 10/15/2003
SECTION 1 - APPROVED MODELS
1-1 Approved Models
1-2 Eligible Models
SECTION 2 - DETAILED SPECIFICATIONS
2-1 Chevrolet Corvette C5 Z06 (5.7) 1999-2002
2-2 Chevrolet Corvette Z06 (5.7) 2003
2-3 Dodge Viper ACR (8.0) 1995-2001
2-4 Ferrari 360 Challenge
2-5 Porsche GT3 Cup (3.6) 2000-2002
2-6 Porsche GT3 Cup (3.6) 2003
2-7 Saleen Mustang SR (5.8) 2000-2001
2-8 Steeda Q400R Mustang (4.6) 2002
SECTION 3 - CAR PREPARATION
3-1 Car Preparation
SECTION 4 - TIRES
4-1 Official Tire
SGS REGULATIONS
General Class Explanation and Purpose
Super Grand Sport (SGS) is based directly on the 2003 GS I Street Stock Category automobile regulations designed to encourage the development of competition vehicles built from series produced production vehicles.
SGS will compete as a separate class in the 2004 Rolex Sports Car Series with separate driver and manufacturer championships.
SECTION 1 - APPROVED MODELS
1-1 Approved Models - Grand American has developed these specifications for competition automobiles that will participate in the category titled "SGS". Cars must have been in production for road use/or meet homologation criteria, and have been/or be for sale to the public in a regular dealer offering. A Manufacturer or Tuner must present their automobile before being approved.
1-2 The following cars are recognized as eligible models
1-2.1 Chevrolet Corvette C5 Z06 (5.7) 1999-2002
1-2.2 Chevrolet Corvette Z06 (5.7) 2003
1-2.3 Dodge Viper ACR (8.0) 1995-2001
1-2.4 Ferrari 360 Challenge (3.6) 2000-2002
1-2.5 Porsche GT3 Cup (3.6)
1-2.6 Saleen Mustang SR (5.8) 2000-2001
1-2.7 Steeda Q400R Mustang (4.6) 2002
SECTION 2 - DETAILED SPECIFICATIONS
2-1 Chevrolet Corvette C5 Z06 (5.7) 1999-2002
2-1.1 Final Drive - 3.73:1
2-1.2 Fuel Capacity - 25.0
2-1.3 Minimum Weight - 2925
2-1.4 RPM Limit - 6500
2-1.5 Tire size: 285/30/18 front, 335/30/18 rear, 285/30/18 front wet, 305/30/18 rear wet.
2-1.6 Camshaft kit #12480110.
2-1.7 Injector #245008208.
2-1.8 Rear upper control arm P&M # C5W-1F-300 w/plastic bushings.
2-1.9 Two-stage external oil scavenge pump allowed.
2-1.10 Aftermarket crank damper allowed.
2-1.11 GM Performance T2 body kit approved.
2-1.12 Plastic rear window allowed.
2-1.13 Up to two-inch rear gurney lip is allowed.
2-1.14 Grand American Spec Crawford rear wing (reference CAR BODY REQUIREMENTS section of the GT regulations) is allowed installed on the rear deck no higher then the roofline and cannot extend beyond the rear bodywork.
2-1.15 Air Jacks are permitted
2-2 Chevrolet Corvette Z06 (5.7) 2003
2-2.1 Final Drive - 3.73:1
2-2.2 Fuel Capacity - 25.0
2-2.3 Minimum Weight - 2700
2-2.4 Tire size: 285/30/18 front, 335/30 /18 rear, 305/30 /18 rear wet.
2-2.5 Two-stage external oil scavenge pump allowed.
2-2.6 Headers allowed.
2-2.7 Lightweight clutch allowed.
2-2.8 Lightweight doors, hood, roof, deck allowed.
2-2.9 Grand American Spec Crawford rear wing (reference CAR BODY REQUIREMENTS section of the GT regulations) is allowed installed on the rear deck no higher then the roofline and cannot extend beyond the rear bodywork.
2-2.10 Air Jacks are permitted
2-3 Dodge Viper ACR (8.0) 1995-2001
2-3.1 Final Drive - 3.07:1
2-3.2 Fuel Capacity - 25.0
2-3.3 Minimum Weight - 3000
2-3.4 Tire size: 305/30/18 front, 335/30/18 rear, 305/30/18 front wet, 305/30/18 rear wet.
2-3.5 Inlet air restrictors 2 required at 55mm.
2-3.6 Upper control arms and rear toe link mounts are allowed to be reinforced.
2-3.7 Air Jacks are permitted
2-4 Ferrari 360 Challenge (3.6) 2000-2002
2-4.1 Final Drive - TBD
2-4.2 Fuel Capacity - 25.0
2-4.3 Minimum Weight - 2700
2-4.4 Tire Size: 245/40/18 front, 305/30/18 rear wet and dry
2-4.5 Engine and ECU must remain per Ferrari Challenge specification.
2-4.6 Grand American Spec Crawford rear wing (reference CAR BODY REQUIREMENTS section of the GT regulations) is allowed installed on the rear deck no higher then the roofline and cannot extend beyond the rear bodywork.
2-4.7 Air jacks are permitted.
2-5 Porsche GT3 Cup (3.6) 2000-2002
2-5.1 Final Drive - 4.00:1
2-5.2 Fuel Capacity - 25.0
2-5.3 Minimum Weight - 2600
2-5.4 Exempt from minimum production rule.
2-5.5 Tire size: 245/40/18 front, 305/30/18 rear wet and dry.
2-5.6 Engine and ECU must be sealed by Porsche Motorsports NA.
2-5.7 Must replace OEM centerlock wheel hubs with 5-stud hubs.
2-5.8 The rear upper and lower tow links may be changed to spherical ends.
2-5.9 Brakes - Allowed brake pad/rotor maximum stack height: TBD. Allowed two-piece four-piston caliper: TBD.
2-5.10 Standard Porsche GT3 rear wing is allowed.
2-5.11 Air Jacks are permitted
2-6 Porsche GT3 Cup (3.6) 2003
2-6.1 Final Drive - 4.00:1
2-6.2 Fuel Capacity - 25.0
2-6.3 Minimum Weight - 2700
2-6.4 Exempt from minimum production rule.
2-6.5 Engine and ECU must be sealed by Porsche Motorsports NA.
2-6.6 Must replace OEM centerlock wheel hubs with 5-stud hubs.
2-6.7 Tire size: 245/40/18 front, 305/30/18 rear wet and dry.
2-6.8 Standard Porsche GT3 rear wing is allowed.
2-6.9 The rear upper and lower tow links may be changed to spherical ends.
2-6.10 Brakes - Allowed brake pad/rotor maximum stack height: TBD. Allowed two-piece four-piston caliper: TBD.
2-6.11 Air Jacks are permitted
2-6.12 2002 model year 4th, 5th and 6th gear ratios may be used at Daytona International Speedway.
2-7 Saleen Mustang SR (5.8) 2000-2001
2-7.1 Final Drive - 3.73:1
2-7.2 Fuel Capacity - 25.0
2-7.3 Minimum Weight - 2925
2-7.4 Exempt from minimum production rule.
2-7.5 Tire size: 285/30/18 front, 335/30/18 rear, 275/35/18 front wet, 305/30/18 rear wet.
2-7.6 Air Jacks are permitted
2-8 Steeda Q400R Mustang (4.6) 2002
2-8.1 Final Drive - 3.73:1
2-8.2 Fuel Capacity - 25.0
2-8.3 Minimum Weight - 2800
2-8.4 Exempt from minimum production rule.
2-8.5 Tire size: 285/30/18 front, 335/30/18 rear.
2-8.6 Boost 16 psi.
2-8.7 Air Jacks are permitted
SECTION 3 - CAR PREPARATION
3-1 Car preparation is per the 2004 Grand Am Cup regulations along with the specific modifications allowed in Section 2 above.
SECTION 4 - TIRES
4-1 Official Tire - The official tire brand for the 2004 Rolex SGS class is Hoosier. The spec tire for SGS is the Hoosier "SGS" radial slick. No other tire may be used. Contact: Hoosier Racing Tire (574) 784-3152.
