2013 Rules, Regulations & Car Specifications
1. The definition of an upright car is a conventional front-mount engine in which the vertical position is to be maintained as closely as possible, with a maximum half-inch offset. The driver shall be seated directly behind the engine, the fuel tank must be behind the driver and the radiator must be positioned in front of the engine. The driver cannot be located beside the drive shaft. Side lips on hoods cannot exceed 2 1/2 inches. Nerf bars cannot be attached to the car in more than three places, no gussets. May not exceed .120 wall thickness and no larger than 1 inch O.D. Maximum width; 36” left, 42” right, measured from center of driveline.
2. Wheel base, minimum 84 inches, maximum 102 inches, measured from center of the front hub to the center of the rear hub.
3. Minimum weight, including driver 1,575 pounds. Cars may be weigh at any time. Fluids used or parts lost during a race may not be added to make weight. No tolerance. Add-on weights must be bolted with a minimum of two 3/8” bolts and double nut and/or weight clamps. They must also be painted white with car number present.
4. No tatiamimun bolts on any part of car.
TIRES & WHEELS:
1. Hoosier right rear part #38221 medium compound. Tire size 105-16-15 medium compound.
2. Insert type, foam rubber wheel cover or covers that are securely fastened to the wheels are the only style wheel cover that are acceptable.
3. Wheel type optional. Bead locks optional. Left rear wheel and tire can be no wider than 18 ½” cross-section; this will be measured using a hoop.
1. All cars subject to inspection at any time and must be free of mechanical defects and be in safe racing condition.
2. Full face racing helmets meeting Snell 2000 standard required and must be worn at all times the car is on the track and accompany vehicle at time of inspection.
3. Bucket seats are mandatory and must be factory manufactured. Only approved seat installation and seat structure accepted. Seat must be properly installed, and seat backrest cannot be moved back farther than the roll cage rear main hoop. No car will be permitted in competition unless seat is properly installed.
4. Fire suits, shoes, gloves, and neck collars are mandatory and must be worn at all times during racing.
5. A 3” wide safety belt and shoulder harness with 2 belts over shoulders, and of a quick-release type are required.
6. Shock-resistant roll cage padding on all bars that driver’s head, legs and arms may contact with while strapped in seat is required. A padded, functional headrest in line with the center of the driver’s head is mandatory. Right side head restraint is mandatory.
7. Two throttle return springs and a steel toe strap on throttle is mandatory.
8. Front rock screen from top of hood to top of front halo and from roll bar to roll bar is required. Maximum 2”x 4” openings.
9. There must be a 2” minimum clearance between driver’s head (with helmet) and top of roll cage (without padding). Loops may be used and must be constructed of the same tubing requirements as frame. These must be added in a safe manner.
Chassis and roll cage must be constructed of steel channel or tubing of a 1 3/8 inch minimum outside diameter by .095-inch wall thickness for the main rails and cage.
Methanol ONLY. No performance additives.
At his sole discretion, the Track Promoter has the authority to permit or not permit a driver 16 years or younger to participate in any class.
Only two digit numbers may be used. No three digit numbers will be accepted. No letters or symbols with numbers. No duplicate numbers. Paint numbers in contrasting colors on both sides of tail and on nose. No Mylar or reflective type material may be used. Numbers must be a minimum of 9” tall. Make numbers BIG, not fancy and kept clean for scorers.
Fuel pump type is optional. No pressurized fuel system.
FULL CELL WITH BLADDER is mandatory. A fuel shutoff valve within easy reach of the driver required. No vinyl or plastic fuel lines allowed. Fuel cell must be securely mounted. No car can start a race with more than 40 gallons of fuel.
One (1) two(2) barrel Holley carburetor not to exceed 500 cfm. No solenoids. Carburetor will be checked using a GO-NO-GO gauge. Carburetor venturibore, throttle plate bore, throttle shaft diameter, and booster size will be checked using GO-NO-GO gauges. Measurements are as follows: Venturibore max 1.390”, throttle plate bore max. 1.700”, throttle shaft diameter min. .180”, booster height size min. . 435”, booster size interior max of .385”, exterior booster max. .6600”. The use of fuel injection, supercharger, turbo charger, nitrous oxide or water injection will not be allowed.
E-Sprint Rules Continued