Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you’re on your way to maximum performance.

This calculator is designed to show the different Compression Ratios for different sized engines.

Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine. Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want. Click …

This compression ratio calculator can be used to work out the compression ratio of your engine. How to use this calculator: Simply fill in all the boxes below with the requested figures and …

2 days ago · Input a positive number for valve reliefs/dish and/or piston below deck. Input a negative number if it has a dome and/or piston above deck.

Calculate the compression ratio of an engine using our calculator. Plus, learn the formulas to find the compression ratio.

This calculator will compute static compression ratio, commonly just called compression ratio. An engine's compressio ratio is the ratio of its cylinder volume at top of piston travel (Top Dead …