Today a lot of street-legal vehicles and off-road rigs run modern coil spring suspensions. Coil springs in their various formats have a number of advantages over traditional leaf springs and torsion ...

"Coil bind" occurs when a spring's coils stack solid at or before full camshaft lift. This develops an infinite load on the valvetrain, causing its weakest link to fail. If you're lucky, the result is ...

Automotive design has come a long way since Karl Benz designed the Patent Motorwagen in the late 1800s, and Henry Ford brought the T-4 powered Model T to the masses in 1908. Those early cars were ...

For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...

If you’re in the market for a full-size pickup that off-roads like a champ, you have plenty of choices in this segment. None, however, can match the F-150 Raptor unless Ram surprises us with the TRX ...