You did a compression test and have 195lbs what is the compression of the pistions?

Cars & Vehicles

There is no possible way to answer that question based on just PSI.

Try googling compression ratio calculator. Once opening the first result you will need to enter your engine specifications to find out the answer. You will need to know the bore, stroke, gasket thickness, size of the combustion chamber and specs of the piston head to get an accurate answer.

If you have a unmodified engine then it may be easier to search google and wikipedia for your specific engine to find the results.

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