Low- And High-Compression Fuel Economy Engines: The Techniques Are About The Same, But The Approach To Each Is Somewhat Different. A.Most stock cylinder heads have factory-cut undercuts of the type ...

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

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 ...

Apart from the very curious, not many people ask why diesel engines, compared to gasoline, run higher compression ratios. The argument is reasonably straightforward and starts with fuel ...

Running everything from NASCAR races to moonshine smuggling, the Oldsmobile Rocket 88 engine became (in)famous for its ...

As we face the end of the internal-combustion era, the straight-six has made an unlikely comeback. Well, unlikely might not be the right word for an engine configuration of such fundamental rightness.

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

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