Winner - Chris Cavaliene - 8.637 @ 164.71

Runner-Up - Chris Smith - 9.720 @ 129.67

2021 MOD PA Sponsored by:

 


Modified Power Adder

Modified PA

Qualifying, Ladder, and Tree Information

  • Limited to quickest 16 qualifiers.
  • Sportsman Ladder. .400 Pro Tree

Vehicle/Body Rules

  • Open to all year, make, and model vehicles.
  • All vehicles must be stock bodied and stock appearing.
  • Repacement hoods, front fenders, hatch-backs & trunk lids allowed.
  • Minimum race weight including driver 3000lbs.

Engine & Drivetrain Rules

  • Must have LT1 based engine (Factory LT1 Block).
  • Cylinder heads must retain the factory 23 degree valve angle, Trick Flow 21 degree heads permitted (TFS-30400008-M54).
  • Aftermarket heads and converted small block Chevrolet heads will be permitted if they follow the above guidelines.
  • Aftermarket EFI PCM, LS1/24x PCM conversions, and Carburetors are allowed with a 100lbs weight penalty.
  • Gasoline or E85 Only.
  • Any GM transmission allowed. Torque converters not permitted with manual transmissions and clutch activated automatic transmissions are prohibited.
  • Line locks, trans-brakes and two-steps allowed.
  • Throttle stops, delay boxes, and auto shifters PROHIBITED.
  • Any automotive rear axle permitted.

Power Adders

  • Only one power adder from the following allowed:
  • Nitrous:
    • Maximum number of one stage permitted.
    • Nitrous and fuel solenoids must be visible.
    • Purge must exit engine compartment.
  • Supercharger:
    • Maximum YSi or F1A.
    • Roots style superchargers limited to 1575 cfm.
    • Supercharger compressor wheel must be constructed of cast or billet aluminum. Exotic materials prohibited.
    • Meth Injection Permitted
  • Single Turbo:
    • Maximum 88mm inducer and maximum T6 flange.
    • Turbocharger must be of conventional impeller and housing design and type.
    • Turbocharger compressor wheel must be constructed of cast or billet aluminum. Exotic materials prohibited.
    • The tips of the impeller wheel may not be stepped, cut down, or notched to meet impeller tip to tip dimensions.
    • Reducers PROHIBITED.
    • Anti Lag systems PROHIBITED.
    • Meth Injection Permitted.
  • Dual Turbos:
    • Maximum 60mm inducer and maximum T4 flange.
    • Turbocharger must be of conventional impeller and housing design and type.
    • Turbocharger compressor wheel must be constructed of cast or billet aluminum. Exotic materials prohibited.
    • The tips of the impeller wheel may not be stepped, cut down, or notched to meet impeller tip to tip dimensions.
    • Reducers PROHIBITED.
    • Anti Lag systems PROHIBITED.
    • Meth Injection Permitted.

Wheels & Tires

  • Any automotive wheel permitted.
  • Tires have a maximum height of 30” and a maximum tread width of 10.5” (No "W") for bias-ply and radial tires.

*** During competition passes, all vehicles will be required to weigh after each pass. Vehicles under minimum weight will be disqualified. ***