Re: Cylinder compression specs

Posted by Fish'n Jim On 2022/6/3 20:43:00

The engine should be at operating temperature also. You're good to go with even unwet compression at this point. Unless something was done wrong, like the ring gap, valves, etc.
I generally recommend to run rebuilds on the dyno or engine stand before installing, because if there's a problem, you don't want to discover it on the car and have to yank it out again. A common malady - cheap insurance. I had them dyno the Cad motor and break it in that way. That way I didn't have to worry about if it was right.
ps: you should subtract 14.7 (at sea level) from the total to get it to "gauge" pressure. 14.7 psia = 0 psig(auge) Don't over think it.