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 ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

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 diesel engine is simultaneously incredibly simple and incredibly violent, using compression as a means of ignition. This is because of the properties of diesel fuel: Namely, diesel is less volatile ...

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

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

A couple of weeks ago, I wrote the autopsy report on the small-block Chevy that lived briefly within the engine compartment of Truck Norris, my 1967 Chevy C10. It ...