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

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 ...

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 ...

‘It’s a big difference’ — Collins questions whether the FIA test reflects real engine heat.