Pit Stop USA Spec Sprint Series Releases 2019 Rule Package
Petaluma, CA (Dec 12, 2018) Petaluma Speedway is proud to announce that for the eighth consecutive year the track’s Wingless Spec Sprint Division will feature Pit Stop USA as the title sponsor. The exciting class of open-wheelers will contest 11 events on Northern California’s fastest 3/8-mile oval. The 2019 technical rules have been updated and released. Specifically, the series will continue to compete with flat-tappet camshafts, on-board starters will be optional, and the combined minimum weight (car & driver) [...]