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

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 ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...

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 ...

After decades of development, Nissan's VC-Turbo promised to revolutionize engines. But can it compete with Toyota's hybrids?

Nissan's innovative variable compression engines were a fascinating innovation when they were first revealed, but the jury is still out on whether or not the combustion technology will stick around. A ...

Reliability takes a while to gauge accurately in the automotive world, and when it comes to engines, they must prove ...

Car and truck engines have evolved considerably since the early 20th century, and today's cars have stricter tolerances than ...