Despite the steadily rising popularity of turbochargers and superchargers for hopping up early- and late-model hot rods, nitrous oxide, better known as “throttle in a bottle,” has never lost its ...

Turbos and superchargers have made extra power almost easy to come by. Thanks to them, even tiny four-cylinders can make the type of numbers that used to be reserved for big-displacement engines. That ...

Discover how to build a simple DIY Stirling engine powered by heat from candles using an empty spray can and pen components.

The use of a dyno to measure horsepower and torque is a valuable tool for the racer. If you use the dyno just to see what kind of torque and horsepower numbers your engine is developing, that may be ...

Language is an imperfect medium, but it's what we've got, so let's go with it. Determining the swept volume of inventor Felix Wankel's rotary engine can generate more arguments than claiming what a GT ...