TIRES:All cars with power adder must compete on a Drag Radial type tire with the following sidewall designation 275/60/15. Naturally aspirated cars are permitted to run a 28.0” x 10.5” slick, no “W” tires permitted.
Minimum Weights:All minimum weights include the driver.
Naturally Aspirated (small block) 2700 lbs.
Naturally Aspirated (big block with standard deck height and conventional head) 3000 lbs.
Naturally Aspirated (big block with tall deck height and conventional head) 3100 lbs.
Naturally Aspirated (big block with standard height and big chief head) 3250 lbs.
Nitrous (small block) 3100 lbs.
Nitrous (big block with standard deck height and conventional head) 3250 lbs.
Nitrous (big block with tall deck height and conventional head) 3400 lbs.
Single YSI / F1A Supercharger (small block) 3100 lbs.
Single F1C Supercharger (small block) 3200 lbs.
Single F1R / Xi Supercharger (small block) 3300 lbs.
Single 76mm T6 Turbocharger (small block) 3100 lbs.
Single 80mm T6 Turbocharger (small block) 3200 lbs.
Single 85mm T6 Turbocharger (small block) 3300 lbs.
Single 88mm T6 Turbocharger with 85mm reducer (small block) 3350 lbs.
* Small Blocks with single stage nitrous system: deduct 100 lbs.
* Small Blocks (NOS only) with 23 degree Chevy heads, 20 degree Ford heads, and 18 degree Mopar heads: deduct 100 lbs.
* Non-Intercooled boosted cars: deduct 50 lbs.
* Aftermarket rear suspension (Ladder bar): add 50 lbs.
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