DUAL ELIGIBLE CARS: Cars eligible for both vintage racing and some other class are highly discouraged, however, if allowed, the car must strongly conform to ALL vintage regulations. Dual class entry will not be allowed in the same weekend.
ROLL BARS: Minimum requirements consist of a Main Hoop and one or two rearward support tubes.
Subject to the approval of Tech inspection. Tubing size is per current GCR. Current Production roll cages are
allowed in this class.
HEAD RESTRAINT: G.C.R. 18.2. Required on all cars. Minimum 1" padding, minimum area of 36 Sq. Inches
DRIVERS RESTRAINT SYSTEM: GCR 20. A Five (5) or six (6) point system for drivers seated upright,
six (6) point system for drivers seated semi-reclining. Only separate shoulder straps are permitted. (No "Y"
type shoulder straps). All drivers restrain systems shall meet SFI specifications and bear a dated "SFI spec 16.1
label" or comply with FIA specs #8853/1985 including amendment 1/92. No more than five (5) years old.
DRIVERS GEAR: Per current GCR
WINDOW NETS: GCR 12.30 Driver-side window nets on all closed cars. All nets shall meet SFI
specifications 27.1 and shall bear a label to that effect. Window nets shall be equipped with a quick release
device. Arm restraints are required on all open cars, and may be used in closed cars to replace the window nets.
FUEL CELLS: GCR 17.12.2, 17.12.4, 17.6: Positive locking cap, vented outside the car, complying with FIA FT3 specifications. Metal bulkhead between driver’s compartment and fuel cell.
FIRE EXTINGUISHERS: All cars must be equipped with a dry chemical fire extinguisher of at least
five (5) lbs. securely mounted in the cockpit or an onboard Halon type fire system which is strongly recommended.
MASTER KILL SWITCH:GCR 17.27: All cars must have a master cut-off switch that is clearly marked.
BODY: No Modifications from original, such as contemporary flares, spoilers or air dams are
permitted. The use of substitute materials such as aluminum or fiberglass in the place of steel solely for the
purpose of vehicle weight reduction is not allowed, unless car was originally homolgated with such items.
Advertising is permitted if it is discreet and does not detract from the appearance of the car. Such lettering
or graphics will not exceed 100 square inches per side, 200 square inches total. Historically significant
markings are encouraged, preferred, and exempt from the 200 square inch rules.
WHEELS: Cars must run on wheels of the same appearance and size as were made available from the
manufacturer at the time. Reference is made to rim width, diameter and offset as specified in the manufacturer’s
homologation statement. A rim width of up to +1 1/2" wider may be used for safety purposes. Wheel diameter may
also vary 1" in either direction to accommodate tire availability.
TIRES: Tires must approximate as closely as possible the original size homologated for the car.
All tires must have a molded tread pattern with minimum tread depth of 1/16". No slicks will be allowed except
when originally used in that car’s class (FIA and Can-Am). Radial tires of 50 series or taller and appropriately
rated may be used with the specific exception of the current Hoosier Radial, which is considered to be a racing
slick.
ENGINE: The entrant must certify the correct engine displacement. The entrant shall have the
option of fitting any substitute engine providing that size/type engine was used during that specific vehicle's
pre-1973 competition history. In the spirit of historic preservation and fair play, participants will assume
responsibility for keeping their equipment as close to original as possible.
IGNITION: Ignition system must be the original type as raced. MSD-type systems may be used in
place of original CD boxes but distributor-type systems must remain in place. Crank-fire ignition systems are
specifically disallowed.
SUSPENSION: All steering and suspension components will be properly fitted with no excessive
wear or play. The system of suspension (spring type and number) must not be altered nor shall additional location
or springing devices be added unless a factory option. No coil-overs unless the car was homologated or originally
fitted with such shocks. Tube type shocks may be substituted for lever action type. Sway Bars and bushings are
free.
TOWING EYES: Recommended all cars have a towing eye both front and rear.
BRAKES: Braking system must be per the year of homologation for the vehicle model. Dual master
cylinders may be used for safety purposes. Disk brakes are permitted when it can be shown they were available as
a regular production option during the year of homologation. Brakes must be original size and specification
(number of pistons, etc.) as raced.
MODIFICATIONS: Any modification to engine, body, suspension or brakes updates the vehicle eligibility date to the year that modification was available for that specific vehicle.
GENERAL:
Revised February 5,1998, October 30, 2001 and November 27, 2007.
SCCA VINTAGE COMPETITION VEHICLE PREPARATION RULEBOOK as revised 1987,1988,1989
SCCA G.C.R., as amended by FASTRACK