How to Calculate Compression Ratio from Scratch As an example, let's calculate the CR for a popular big-block Chevy application.

We show you how to measure displacement and compression ratios to help you push engine compression limits without breaking the rules of your sanctioning bodies - Circle Track Magazine ...

Mods For Mods Part IV - Comparison Ratio On Ford Mustang GT 4.6L Engine Compression Ratio Comparison With Kenne Belle ...

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