Classes/Rules

IDRC PRO Heads-Up Classes

Heads up means you line up and drop the hammer.

Pro FWD

Open to import and domestic FWD platforms powered by an I4- or V6-cylinder engine, the class is limited to a single 72mm turbo or twin 51mm turbochargers. While all of the vehicles in this class are dedicated racecars, the retention of the unibody chassis is mandatory except for nitrous-only vehicles which may be ¾ chassis tube frame.

Pro Turbo 10.5

A class for the popular 10.5-inch racing slick or 345mm DOT radial tire race car. Unibody AWD, back-half RWD and full-tube frame FWD vehicles are all permitted. To encourage participation in the new class, there are no turbo size or vehicle weight limits. V8 engines are restricted to a single power adder, while V6 and 4-cylinder engines may have multiple.

Pro-Am All Motor

No turbo, no nitrous, no problem! The IDRC PRO-AM ALL-MOTOR class features the nation's top unibody max-efforts racecars. High-tech, four cylinder, venerable air cooled and wild rotary engines are all welcome.

IDRC Competition Index Classes

The organization that introduced the first national import drag racing series is now the first to introduce a complete set of index racing classes. We noticed that a number of new racers are already focused on building cars to meet NHRA safety guidelines for a specific elapsed time and trap speed. It only made sense to introduce these racers to index classes that matched the same performance levels set by NHRA guidelines. Since 10.0-seconds, 11.5-seconds and 14.0-seconds are specific performance limits set by the NHRA guidelines, the IDRC Competition index classes set these performance levels as the maximum performance level the vehicles are allowed to run.

Competition Eliminator (10.00 index)

Index class racing offers the excitement of heads-up racing in a class that is truly “run what you’ve brung.” There are no restrictions on turbo sizes, power adders or any modifications. For Competition Eliminator, the quickest elapsed times allowed are 10.00 seconds. This corresponds to the fastest time allowed by NHRA safety rules for drivers without NHRA Competition Licenses or NHRA certified roll cages.

Modified Eliminator (11.50 index)

Index class racing offers the excitement of heads-up racing in a class that is truly “run what you’ve brung.” There are no restrictions on turbo sizes, power adders or any modifications. For Modified Eliminator, the quickest elapsed times allowed are 11.50 seconds. This corresponds to the quickest times allowed before requiring a roll bar.

Street Eliminator (12.50 index)

Index class racing offers the excitement of heads-up racing in a class that is truly “run what you’ve brung.” There are no restrictions on turbo sizes, power adders or any modifications. For Street Eliminator, the quickest elapsed times allowed are 12.50 seconds. For most cars on street tires, only a helmet and sometimes and SFI-approved racing jacket (for aftermarket supercharged, turbocharged or nitrous-oxide vehicles) will be needed.

IDRC E.T. Bracket Classes

Are you ready to run what you brung? It doesn't matter how fast your car is or isn't. There's a bracket class for you to win within the IDRC's bracket classes. Open to all import and "high-tech" domestics, the bracket classes feature the best foot brake (no delay box) racing action. Vehicles can be mild to wild, full race or full street. Bring mom's car, it's time to have fun.

S/C SUPER COMP

7.50-to-12.99 dial (7.50-to-13.99 dial Bandimere Speedway)

S/M SUPER MOD

13.00-and-up dial (14.00-and-up dial Bandimere Speedway)