Almost all gasoline engines, whether they're efficient-yet-less-refined four-cylinders, high-horsepower V6s, or growly and torque-rich V8s, use much the same process to create power. The "Otto cycle" ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

A detailed test of a compact 4-stroke OHV gasoline engine converted into a functional generator for experimental projects.

The story of how Honda developed an oval-piston race engine that ultimately failed but still made history along the way. Honda pioneered oval piston technology in the 1970s for four-stroke racing ...

Much like discussing religion and politics at a backyard BBQ, bringing up the debate of whether a 2-stroke dirt bike is faster than a 4-stroke is like asking if Ford is better than Chevy. Fortunately, ...