Your engine feels calm at a stoplight because a hidden idle system keeps fuel, air, and spark in balance. That quiet ...

'Somewhere in automotive never-never land, there's a place called TPI Gulch. Walk to the edge, look down, and you'll see heaps of brand-new throttle-position sensors, mass airflow meters, ...

I remember sitting in auto shop listening to Mr. Curtis explain the virtues of fuel injection, circa early '80s. Even then, the term was far from new, and yet fuel injection was all but unobtainable ...

Putting the finishing touches on Lethal Weapons' 383 engine build with a set of AFR cylinder heads and an Edelbrock High-Flo TPI intake Building any engine from scratch requires a significant ...

A quick look around is all you need to think the two-stroke engine is dead. Exhaust smokers no longer brapp their way past outdoor cafés or over twisty mountain passes. You don't even see two-strokes ...