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 ...

What is compression ignition? Compression ignition basically is the term that is used for describing the manner in which diesel engines function.

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 ...

Curious to learn just how healthy or unhealthy your engine is? Get yourself a compression tester and find out. See the best compression testers here.

You know what variable valve timing is. You're quite familiar with Honda's VTEC system. Now Infiniti has something new for you dive into, and it's all about changing an engine's compression ratio ...

About those hurdles: Gasoline engines do some things better and diesels are better at others. With compression ratio, diesels have the edge; specific heat ratio, diesels again; combustion period ...

Last year, Infiniti announced plans to build a Variable Compression Turbo engine, the first of its kind in a production vehicle. Parent company Nissan says it’s been in development for 20 years ...

If your car is getting older or you feel like you may be losing some engine power, a compression tester can help sort out the problem.

The compression ratio describes the volume of an engine cylinder when the piston is at the top versus the bottom of its travel.

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

Other than the fact it can adjust its compression ratio between 8:1 for high performance and 14:1 for maximum efficiency, the Infiniti VC-T can adjust its displacement.

The engine, dubbed the VC-T (Variable Compression-Turbo), has the ability to alter the compression ratio, i.e. the volume of the combustion chamber when a piston is at the bottom of the stroke ...