blackp7coupe Posted February 6, 2019 Report Share Posted February 6, 2019 I know the compression ratio, what should the compression be, in pounds? Thanks for your help. Quote Link to comment Share on other sites More sharing options...
DJ194950 Posted February 7, 2019 Report Share Posted February 7, 2019 In a new engine 115lb. and even across would be ideal. Never seems to be perfect but close. On a well used engine but still runs good anything above 70 lb. and even is OK for now. Some may say 90+ is much better which I also agree with. On the other hand a motor (flathead mopar) will still run OK if 50+ And even. Major unevenness PSI between cylinders is Not OK. So, what you got?? DJ Quote Link to comment Share on other sites More sharing options...
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