RULES - NATIONAL COMPETITION RULES - UNLIMITED CATEGORY - UNLMITED CATEGORY - FULL RULES
Unlimited Category is for production-based vehicles prepared beyond Sport, Tuner Prepped and Max which means any vehicle on DOT tires with less than 200 treadwear or on non-DOT tires. We do not expect these vehicles to be streetable. This is where you will find Time Attack monsters, Tube Frame GT cars and race cars that don't fit with the street-driven philosophies of the other categories.
1. Unlimited Category - Vehicle Eligibility
2. Unlimited Category Safety
2. Unlimited Category Authorized Modifications
As with Max, Unlimited Category vehicles may only be driven, stopped and steered through the wheels and tires. When the word “unrestricted” is used in these rules, it is under the assumption that the modifications and controls are within this parameter.
Unlimited Category vehicles may do any modification listed in Sport, Tuner and Max Categories, plus allowances listed below.
3. Aerodynamic Aids
4. Tires and Wheels
6. Steering and Suspension
8. Engine and Drivetrain
Unlimited is divided into two categories: Unlimited 1 (U1) and Unlimited 2 (U2). There is absolutely no guarantee of competitiveness for any vehicle in Unlimited Category, even though there will absolutely be a wide range of vehicle performance.
1. Unlimited 1
2. Unlimited 2
3. Displacement Modifiers
4. Suggested Sports Racer/Formula Car Classing (Regional Events Only)