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| Yakdirttrack 11/15/11 11:13 AM | 2012 Sportsman Rules MOTOR: Cast iron block and heads. Aluminum intake okay, No nitrous, no turbos, no blowers. No nitro methane headers allowed. MUFFLERS: Cars must meet 95db @ 100'. FUEL: Race fuel only, no alcohol. WEIGHT: 2600lbs after the race, with driver in the car. TIRES AND WHEELS: Up to 11.5 max asphalt take off no beadlocks, grooving is okay, no treating tires. REAR SPOILER: 60" max from ground. Must be clear side boards 12" max must be clear no further than driver. |