Uncover the fascinating story of the saab variable compression engine, a groundbreaking design that never made it to ...

A computer generated power stroke of an internal combustion engine, following ignition - Pathompong Thongsan/Getty Images When comparing engine specs for nearly any combustion engine automobile, we ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using ...

As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, higher-compression engines tend to make more power while offering better fuel ...

Taking an engine compression test is sort of like checking your car's blood pressure. It's a quick and painless procedure that can reveal hidden issues.

At the time, it was anybody's guess how durable and long-lasting the yet-unproven hybrid car, with its hybrid engine, would ...

1.Strive to achieve the highest levels of cylinder pressure short of detonation. 3.Treat multi-cylinder engines as a combination of several single-cylinder engines, inasmuch as the optimization of ...

Compression is only one thing Hyundai wants to be able to adjust.

Direct-drive fans waste energy and over-cool gas, reducing efficiency and throughput. Horton’s Gas Thermal Control Clutch ...

Formula 1 cars have some excellent thermal efficiency, with even the best mainstream cars just scraping under their potential ...