A Note from Jim: The stated objective of this story is to introduce you to some notions that may be of imme-diate help to circle track engines operating under rules that allow non-OEM parts. It is ...

The second car that I ever owned was a 2002 Chevy Silverado 2500 with a 6.6L Duramax diesel engine under the hood. It wasn't my first choice, but it was a hand-me-down from my father after my 1993 ...

While everybody knows what the oil pump's job is and why it's there, few enthusiasts consider the lowly bubbler as a possible engine tuning resource. We've come to appreciate that it takes power to ...