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Open Comp

Open Comp – Updated 2017

This class caters to no box bracket and street cars running 10.00 and slower. You get 2 qualifying attempts per race. Rules are pretty simple and are as follows:

Class Description:

– The Open Comp class was designed for all vehicles and trucks that run 10.00 and slower in the 1/4 mile. Open exhaust and vehicle lettering/decals permitted.  Motorcycles are not permitted. The “Open Comp” class will be run on an Open Comp format with a 1-tenth (1/10th) breakout. What this means is, you get 2 rounds of qualifying. Your dial in will be your choice and a 1/10th of a second breakout allowance is permitted. This time will be yours throughout eliminations (IT DOES NOT CHANGE).


Racers will be put on a Sportsman ladder for eliminations based on their elapsed time. All racers successfully qualifying will receive 5 championship points.

Class Guidelines

Rules & Regulations:

–Open Comp is based on an Open Comp format, which uses a ”5/10ths Pro Tree” start system. Any “door slammer-type” vehicle is permitted.  Any modifications, any tires, any vehicle weight, or power adders are permitted. Trans-brakes and 2-steps are permitted. Delay boxes, Throttle-stop, crossover boxes, or any “reaction-time related” electronic aids strictly prohibited.

E.T. Limits: 

– The fastest qualifying ET permitted in the Open Comp class is 10.00. Any qualifying pass faster than 10.00 will be disqualified and will not count. Competitor will be permitted to requalify (if additional qualifying rounds are left) slower than 10.00. Competition will be regulated under standard NHRA “First or Worst” competition policy during qualifying and eliminations.

Deep Staging:

– Deep staging is permitted, however not advocated. If you plan to Deep Stage it is strongly recommended that you boldly display the words DEEP on all four windows, in plain view of the starter. It is always the driver’s responsibility to stage the vehicle prior to the tree being activated. In any event, the driver must be prepared to leave as soon as the final stage light is lit.

– A competitor with the words DEEP displayed on the window is not necessarily obligated to deep stage. As well, the starter is not necessarily obligated to wait on a driver to deep stage, even if the words DEEP are displayed on the vehicle. All drivers must be prepared to leave as soon as the final stage light is lit.

Tow Vehicles:

– Open Comp does not allow tow vehicles of any sort in the staging lanes. You can tow your vehicle back to the pits at the conclusion of your run after exiting the racing surface.

Race Format:

-.500 Pro tree handicapped start with a sportsman ladder

If you are building a race car and you are unclear about rules concerning your class, please contact us.

The OSCA reserves the right to impose penalties for rule infractions and on items which do not represent the intent of the class entered.

Rules subject to change without notice. If in doubt as to rule interpretation please contact us for final ruling.