Compresson ratio VS Compression

seawalkersee

Registered User
I have asked this before on other boards but I am not sure I have asked here yet. Is there an equasion that will be relative for compression when the test is performed correctly that can give you a CLOSE compression ratio? Lets say an average with plugs out of 180 cranking PSI being like 10:1. Is there a formula that I could use?

Thanks

Chris
 
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