Every car engine has quite a few details, ranging from cylinder count to compression ratios. How does changing the compression ratio affect the engine?

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 ...

You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an engine's fuel efficiency?

What makes a diesel engine different to a regular gas engine, and is one better than the other?

Mazda is first with plans for a compression (diesel) engine that burns gas. The SkyActiv-X 2019 Mazda will get 20 to 30 percent better fuel economy than a gasoline ignition engine. Share on Facebook ...