NASCAR Cup engines live in a strange space: they are tightly regulated, largely hand built, and expected to survive hours at ...

NASCAR officials issued technical updates for the 2026 rule book on Friday, including specifics for the Cup Series’ rules configuration for 750-horsepower tracks and a mandate for A-post flaps at ...

The NASCAR offseason is in full swing, and that means an update to the rules package for the 2026 Cup Series season. Of course, there is an increase in horsepower at tracks less than 1.5 miles in ...