Sprint Car Rules

*** Please refer to General Section for rules and regulations applicable to all divisions***

1. Approved tires will be Hoosier 2045 Right Rear, M30 Left Rear, 2030 Right Front & 2010 Left Front. No Bleeders

2. Car Weight: 1,625lbs at all times

3. No cockpit adjusters permitted other than brake biased adjuster and wing adjuster

4. Engine Rules:

   1. 360cid unrestricted

   2. 410cid restricted to 1 7/8” ID with a maximum depth of 1 ½”

   3. Side board 30" tall 75" long max

   4. Sideboard cannot extend beyond outside edge of left rear tire

   5. Wicker bills no more than 2"

5. Wings:

   1. Nose wing: 2x3’ max

   2. Main wing: 5x5’ max

6. Tread width 78” max outside to outside

7. Offset measured from center of Input Shaft to outside of tire 44” max

8. Prerace: all cars will go to lineup early with air cleaners off in order to check restrictors; 360 cars will be subject to pump for cid post-race.

9. Postrace: The top 3 finishers will park on the back stretch and stay in cars; then be pushed across the scales in the infield. The top 3 finishers to pass scale tech will push to the front stretch for trophy presentation

10. CNS Will be the exclusive supplier of Tires for the event.

11. When registering online, please submit your tire request for the following models​​

    1. 2045 (RR)

    2. M30 (LR)

    3. 2030 (RF)

    4. 2010 (LF)​​​

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Questions or Comments?

Please Email us: 

tech@coloradospeedway.com