2008 Sprint Car Rules

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2008 Sprint Car Rules   1.       Engine: Cast iron or aluminum naturally aspirated engine, with a maximum of one spark plug per cylinder is permitted. No overhead cams allowed, two valves per cylinder only. 2.       Fuel and System: Methanol only is permitted, with no additives, except approved top oil, which must pass fuel test. Fuel bladders are mandatory. No smaller than 24 gallon fuel tank is allowed at any time (33 gallon or larger fuel tank is recommended). The use of a top siphon fuel cell is highly recommended. No nitrous oxide. 3.       Injection: No throttle body, plenum-type, or electronic fuel injection allowed.  Fuel pump must be mechanically driven. 4.       No batteries, wet or dry, expect 9-volt to power tachometer. 5.       Drive Line: Highly recommended to be completely enclosed. Drive line hoop or strap is mandatory. 6.       Bodies: Cars must resemble a sprint car: hood, fuel tank, etc. Maximum 25 square foot top wing, 2’ x 3’-nose wing. Top wing no wider than 61". Maximum side board 30" x 72". No kick-outs. Maximum 3" wicker bill. Triangular side panels on roll cage are allowed, but must be within roll cage. No turnouts or any other airfoils. The driver’s right-side opening must be at least 12 inches vertically at any point and a minimum of 21 inches horizontally at any point. Left side opening must remain free of panels for safe exit and access by safety crews. Car number must be displayed on wing. Car must start event with top wing. 7.       No part of car can extend past front bumper, and bumper must be no more than 23" from front of front axle. 8.       Aluminum and titanium are not allowed on chassis construction. 9.       No carbon fiber or composite materials allowed, with the exception of top wing noses 10.    Driver’s seat must be bolted in with four bolts minimum no dzeus buttons.  Driver’s seat fuel/flame deflector is highly recommended.  Must be wider than seat and extend from floor pan, underneath seat, and then turn up behind seat. No bracing will be allowed in the center of the top cage opening that would prevent a driver from exiting through the opening or inhibit a safety/rescue crew’s ability to extract the driver. 11.    A protective rock screen must be installed in front of driver, with no larger than 4" square opening.  Roll cage must have protective padding. 12.    Mufflers are required. The part #112535 Schoenfeld is the minimum requirement. Must be welded with a minimum of four one-inch welds required on each muffler. NO rivets, screws or spot welds. Mufflers must be inspectable. Mufflers are required at the start of all events. 13.    Car and driver must weigh a minimum of 1375 pounds on speedway scales at the completion of heat, consy, and feature. No add-on weights or bolt-on ballast are allowed. 14.     Tires: We will be utilizing the National Spec Tire Rule, which is the following: Right rear must be Hoosier only. Part 38-250SC12 105.0/18.0-15 SC12 (SprintCar12); 38-250SC15 105.0/ 18.0-15 SC15; 38-250SC25 105.0/18.0-15 SC25. 15.    Nerf bars, which offer adequate protection in the event of contact with another car, are mandatory. Nerf bars must be attached with bolts, not rivets. Car cannot push off without a rear bumper. 16.    Drag link tether is mandatory. Steel drag link and steel hyme ends are highly recommended. 17.     Arm restraints are highly recommended.   Tech Inspector: Randy Myers 814-432-2461 (days) or 814-432-5175 (evenings)   RULE BOOK DISCLAIMER The rules and/or regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govern the condition of all events, and, by participating in these events, all participants are deemed to have complied with these rules. No expressed or implied warranty of safety shall result from the publication of or compliance with these rules and/or regulations. They are intended as a guide for the conduct of the sport and in no way a guarantee against injury or death to a participant, spectator, or official. The race director shall be empowered to permit reasonable and appropriate deviation from any of the specifications herein or impose any further restrictions that in his opinion do not alter the minimum acceptable requirements. No expressed or implied warranty of safety shall results from such alterations of specifications. Any interpretation or deviation of these rules is left to the discretion of the officials. Their decision is final. On occasion when situations arise that are not covered by written rules, special rulings may be put into effect by the track officials. Once such rulings are acted upon, they become an act of policy and will be added to the existing rules of procedures. The Management of MERCER RACEWAY PARK