How To Class Your Car
It's really pretty easy.
The DVEN Rally4Vets Top Dog Championships are all about fun and helping the disabled veteran community. It seems there is an infinite number of ways to modify a car and many of our drivers will be bringing their stock daily drivers. With that in mind, we have adopted the car classing model developed and used by Jon Felton in his successful trackcross programs.
Before you register, please review the car classes below.
Street and Competition Classes
If you have participated in one of Jon Felton's TrackCross events you are familiar with the classing structure below. If you are accustomed to SCCA time trial classes, you will find this structure simpler.
We class cars so drivers compete against those in similar cars and of a similar skill level.
We use the honor system, so it is each competitor’s responsibility to class themselves and their cars correctly.
We also put drivers in Novice and Experiences classes to level the playing field.
Choose “Novice” (NOV), if you are a beginner or otherwise fairly new to TrackCross (less than 5 autocrosses, trackcrosses, HPDEs, or similar performance driving events in the last 2 years), regardless of the type of car.
Note: Novice drivers compete only against other novice drivers for points and medals in your car class. When you register on Motorsportreg.com, you need to select Novice and then choose your car class.
Street Car Classes . . .
Below are the classes 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 (naturally aspirated) + 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 NA
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 NA
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 . . .
These classes are 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 NA
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 NA
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 NA
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
*NA = naturally aspirated
Horsepower ratings 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 into 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 email TopDog @ rally4vets.com before registering.
See you in October!