It started the way a lot of truck problems start: not with a dramatic breakdown, but with an annoying little vibe you can’t un-feel. At stoplights the engine would stumble, the RPM needle would wobble ...

Truckers have been looking for ways to reduce heavy-duty truck idling, with its wasted fuel and engine wear and tear, since the 1940s. Idle-reduction technology has advanced from engine block heaters ...

It's a big day. You've finally installed that lumpy cam in your big-block street-stormer, and you're ready for the testdrive. The cam's all broken in, the timing and ...