NASCAR teams must make minimal modifications to get their Next Gen cars ready to race on Bristol Motor Speedway’s dirt track. The primary changes are a stronger underbody, a diffuser modification, and ...

Track Configuration The shape of the track for both dirt and asphalt can influence the available traction in several different ways. As we apply power, we need to know a little about how the track is ...

Bristol Motor Speedway trades in asphalt for dirt in its third annual Food City Dirt Race. Cup Series drivers will navigate the Tennessee clay in hopes of securing bragging rights in the specialty ...

The World of Outlaws sprint cars return to the local ovals this week, and tires are becoming a big concern. As has been noted before, there is a shortage of tires for dirt-track racing. The combined ...

PHOENIX — For Kenda Rubber Co. Ltd., there isn't a much better durability test for an off-road tire than watching it land a 100-foot jump — or several — during a race. As Kenda Tire USA Inc. has ...

CONCORD, N.C. — A top NASCAR official in charge of the Next Gen car’s development said that Goodyear tire tests are planned for two short tracks — historic Bowman Gray Stadium and Wythe Raceway’s half ...