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600 Micro Sprint

(US6A Rules)

600 Wingless Micro Sprints

Must compete without a top wing or front wing


The maximum bumper length will be 8 inches from the front of the chassis.


Tire Rule:

Hoosier US6a, NMMA, ASCS2, or KS1 (Must run a Hoosier Tire to receive championship points)

American Racer NMMA or MD57B


Right Rear tire Must durometer 50 before and after race, 5 minute cool down period allowed.

CHARGER Rule update (6/15/2022)- Clarification

Original rule states
1-(One maximum 500 CFM Holley carb only. Carburetor spacers 1” MAX ALLOWED)
Clarification 1-Holley 4412 500cfm in stock form. Must pass gauge (top-bottom) no adjustable AIR BLEEDS must have choke horn. May add up 1 inch max carb spacer

2- (No aftermarket inline proportioning valves allowed. May disconnect right front brake)

Clarification All cars can have 4 wheel or 3 wheel brake system. If you choose to run 3 wheel brakes the right front brake will have a shut off valve located in the engine bay ONLY . No cockpit shut off valves.

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