Infiniti has revealed an engine concept this year, and it is of the variable compression kind. While not the first of its type as a concept, this motor might bring a new line of internal ...

N issan’s original variable-compression powerplant is an absolute marvel of engineering. This little four-cylinder wonder is ...

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?

Nissan’s new Variable Compression-Turbo (VC-T) gasoline engine design varies the engine’s displacement and therefore its compression ratio.

Infiniti is likely the first carmaker to put a variable-compression engine into production.

Infiniti is putting the pressure on its competitors. The automaker has revealed plans to introduce the first production-ready engine with a variable compression ratio that promises to improve ...

Here's a fascinating example: Infiniti is about to unveil the world's first production-ready variable compression ratio engine at this year's Paris Motor Show.

Why variable compression ratio matters Today's gasoline-engine cars compress the outside air to about a tenth its original volume, a 10:1 ratio, inside each cylinder.

Now Porsche is working on just such an engine, revealed in the form of a newly-published patent, which will be able to alter its compression ratio.

After many years of research and development, the world’s first production-ready variable compression ratio engine is ready.

Around 2001, Saab Automobile introduced a bold new engine concept that used a hinged, two-part engine block to vary the compression ratio automatically.

SEE ALSO: Infiniti Introduces World’s First Production-Ready Variable Compression Ratio Engine Such a design helps to prove the best of both worlds when it comes to engine performance.