Broadly speaking, the higher the compression ratio, the greater the engine’s thermal efficiency (that is, the more mpg you get). So why not run the highest compression ratio possible all the time?

The compression ratio isn’t just a number: it’s one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...

But too high a ratio causes knocking—premature detonation of fuel-air mixture during the engine's compression stroke caused by high cylinder temperatures.

Recently, when I went to the gas station, I hesitated for a long time while staring at the price tag on the pump. The price ...

The MCE-5 engine from MCE-5 Development in Lyon, France varies its compression ratio and uses a combined gear and rod-crank mechanism.

Read on as we list ways to figure and measure your compression ratio, total piston volume, and choosing the best pistons. Read on for more details along with photos only in Mopar Muscle Magazine ...

This lowers the compression ratio to 8.1, but because the turbocharger kicks in at the same time, the engine's power output increases.

A group of newer Nissan and Infiniti vehicle owners have presented a new class action lawsuit alleging that variable ...

Forget variable length intakes and variable valve timing, Infiniti is going all the way and introducing variable cylinder compression ratios. The new VC-T turbo engine automatically adjusts ...

Check out this engine compression test, leakdown, and bubble tests. Read more only at www.highperformancepontiac.com, the official website for High Performance Pontiac Magazine!

The world's first production continuously variable compression engine setup, dubbed VC-T, will be first used in the Infiniti Q50 in 2018.

An interesting patent has been filed by Toyota for an engine with variable compression.The patent is for an engine with variable length connecting rods.The connecting rod features two hydraulic ...