Basic car classing exists so drivers compete against those in similar cars and/or of a similar skill level. It is each competitor’s responsibility to class themselves correctly and to help class all other participants correctly.
Choose “Novice” (NOV) if you are a beginner or otherwise fairly new to this (less than 5 autocrosses, trackcrosses, HPDEs, or similar performance driving events in the last 2 years) regardless of car.
Choose “EXPO” (EXPO) if you don’t care about car classing and/or don’t want the chance to win stuff.
Street car classes-
Shall be for street legal production cars that are stock or have limited/basic bolt-on modifications like intakes or exhausts or springs/shocks, DOT 140+ treadwear street tires, full interiors, and little to no weight reduction:
SF1 = Street FWD under 2.5L naturally aspirated
SF2 = Street FWD over 2.5L NA + all forced induction, less than 400hp
SF3 = Street FWD over 2.5L NA + all forced induction, 400hp or more
SR1 = Street RWD under 2.5L naturally aspirated
SR2 = Street RWD over 2.5L NA + all forced induction, less than 400hp
SR3 = Street RWD over 2.5L NA + all forced induction, 400hp or more
SA1 = Street AWD under 2.5L naturally aspirated
SA2 = Street AWD over 2.5L NA + all forced induction, less than 400hp
SA3 = Street AWD over 2.5L NA + all forced induction, 400hp or more
Competition car classes-
Shall be for street legal or non street legal competition or racing prepared cars with more extensive modifications like engine swaps or added forced induction, DOT R-compound tires or full slicks or any tire with less than 140 treadwear, gutted interiors, and/or significant weight reduction:
CF1 = Competition FWD under 2.5L naturally aspirated
CF2 = Comp FWD over 2.5L NA + all forced induction, less than 400hp
CF3 = Comp FWD over 2.5L NA + all forced induction, 400hp or more
CR1 = Competition RWD under 2.5L naturally aspirated
CR2 = Comp RWD over 2.5L NA + all forced induction, less than 400hp
CR3 = Comp RWD over 2.5L NA + all forced induction, 400hp or more
CA1 = Competition AWD under 2.5L naturally aspirated
CA2 = Comp AWD over 2.5L NA + all forced induction, less than 400hp
CA3 = Comp AWD over 2.5L NA + all forced induction, 400hp or more
Horsepower ratings for consideration above are at the crank, from manufacturer specifications and/or via best calculation on a dynamometer.
If you swap your engine, add a supercharger/turbocharger, swap on a bigger turbo, run a very sticky tire, mount big aero, gut your interior, etc – your car goes to Competition class and probably bumps from 1 to 2 or 2 to 3 (even if it’s still a daily driver!)
If you have any questions about your power level or about which class to select, please contact Jon Felton before registering.
