Plymouth Speedway - 2013 Modifieds Rules

Starting Saturday May 25. 2013, all Modifieds must run muffler inserts (to approx. 100dbl) to compete at Plymouth Speedway. Failure to have muffler inserts may lead to disqualification.

Modifieds will follow UMP rules**
Use the link to review 2012 Rules. Once 2013 Rules are posted, we will update ours as well.

http://www.dirtcarump.com/rules/modified-rules/

**GM Crate Engine #88958604 (commonly known as 604) will receive a 100lb weight break. These engines must remain as delivered by GM with no modifications.
Plymouth Speedway reserves the right to change, delete or add to rules throughout the racing season. The management reserves the right of interpretation of all rules and the right to inspect and reject any car and/or driver, crew member, etc. during the racing program.

For any questions on the Plymouth Speedway rules, please call Tech Director Mike Zielinski 1-(574) 532-7969

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Visa, MasterCard, Discover, and American Express are accepted at the front gate, the pit gate and to purchase tires and fuel.