Ultimate Sprint Car Series Invades Petaluma Speedway Labor Day
Petaluma Speedway is please to announce a schedule change for our Labor Day, Sept 1st event. The Ultimate Sprint Car Series will replace the SRML Environmental Wingless Sprint Cars on this historical Monday Night show. The USCS Sprint Car Series pits 360 c.i. vs 410 c..i. non-wing sprint cars via equalizing fuel injection restrictors. Hosting this new, popular regional series has been on Petaluma Speedway’s radar all year and with the historic Louie Vermiel Classic at neighboring Calistoga [...]