We spent a couple of days at JMS Racing Engines, in El Monte, California, talking with owner Mike Johnson and his machinists and builders to get the scoop on what makes a successful, budget ...

As a certified shadetree motorcycle mechanic, I've seen some pretty wild field expedient repairs attempted by previous owners. Typically these are hack jobs so embarrassing — we're talking things like ...

Cummins diesel engines are highly regarded as being tough and reliable. However, the 5.9L Cummins 24-valve engines produced from 1999 to 2002 used engine blocks that are prone to cracking. While any ...

The pressure builds. The drive to perform efficiently ramps up. Failure of one aspect could be devastating. It's a lot to ask of an engine. You're asking the same from your engine builder, who's ...