One of the keys to any engine development program, from Winston Cup to the Saturday- night racer, is the ability to effectively evaluate changes to the engine. The goal of any engine development ...

We're standing in the engine dyno room, watching through roughly a foot of safety glass as the Audi RS 7's 4.0-liter twin-turbo V-8 holds near redline. Its exhaust, from manifold to mufflers, glows a ...

Last month we built a mild street engine using a factory Chrysler 383 block, crankshaft, rods, and cylinder heads combined with some aftermarket goodies from Comp Cams and Summit Racing Equipment, and ...