USCS 600 Sprint Car Series Rules
MOTOR RULES and WEIGHT RULES:
Option Category #1 Motors = Stock 600cc (GMSA type motor) Must be stock production no
modifications. CC casting number must be visible on engine. Minimum weight for Option #1 motors is 750
pounds for the car and driver after the race.
Option Category #2 Motors - 601cc to 636cc U6SA (Pennsylvania and North Carolina) type motors
with no porting of cylinder head. Minimum weight for Option #2 motors is 775 pounds for the car and
driver after the race. No Nitrous, turbo or superchargers permitted.
Option Category #3 Motors - 601cc to 640cc motors PORTED HEAD, ETC.. Minimum weight for
Option #3 motors is 800 pounds for the car and driver after the race. No Nitrous, turbo or superchargers
NO TRACTION CONTROL DEVICES OF ANY TYPE ALLOWED.
WEIGHTING PROCEDURE: The TOP THREE (3) finishers must weigh after heat race. The TOP FIVE
(5) finishers must weigh after the feature prior to returning to your pit. Any cars that return to their pits
prior attending the scales as instructed for weighing will be disqualified. Any material used for adding
weight to the car must be firmly attached. Loss of any bolt-on weight during competition will disqualify the
individual from that event.
TIRE RULES: Hoosier Racing Tires will be the legal and official tires on all four corners. Right rear tire is
a Hoosier USCS SPEC tire and must punch 50 durometer at any time. The Front tires and left rear tire
can be any compound but must be Hoosier brand.
FIREWALL: All cars must have a metal firewall between Driver and engine compartment. Minimum 24
gauge or .0625 thickness aluminum.
ROLL CAGES: Roll cages shall be at least 1 1/8 inch .065 wall thickness or 1 1/4 inch .065 wall
thickness. Roll cages must have sufficient fore and aft bracing. All cages shall be made of chromoly steel
NERF BARS and BUMPERS: All cars must be equipped with nerf bars. Nerf bars may not exceed
beyond the rear tires. All cars must have bumpers extending beyond the front and rear tires.
CHAIN GUARDS: will be installed on all cars using a minimum of .090 aluminum material or equivalent.
ON/OFF SWITCH: On and off switches must visible and be on the dash.
FLOOR PANS: All cars must have a floor pan that extends from the engine compartment/firewall in front
of the Driver’s feet to at least the front of the driver’s seat.
BATTERIES: All wet cell batteries mounted in the cockpit area must be covered and vented outside the
WINGS: All cars will have top wings at least 12 square feet, and a maximum of 16 square feet. The left
sideboard 26” x 54”, right sideboard 24” x 54”. Nose wing 4 sq. foot max
FUEL CELLS: All cars will have fuel cell bladders.
FUEL: Methanol Alcohol is the only fuel that may be used. NO ADDITIVES ALLOWED.
Raceceiver will be required