im doing a compression test on a 1987 iroc z-28. what should the P.s.i. be a on a compression test of one of the cylinders on this engine be.
Mar 21, 2010 at 7:56 AM
compression tests
LKSTENGER
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anywhere from 125-150p.s.i. would be good. they all should be within 20% of each other though. to do this correctly, disconnect the coil wire and open the carb up all the way. If you have one that is low then put oil in the cylinderand test it to see if it coms up.
Mar 23, 2010 at 11:51 AM
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