Originally Posted by chi town brat
I broke a compression guage ... but that was because we did it after i ran the car thru the autox several times ... don't do a compression test when your engine is hot. you break things and of course you don't get the correct reading
My static compression is at 270 on my sohc. We used the compression calculator to find my ratio.
you're supposed to compression test the motor warm/hot. if not, the rings not being expanded can cause inaccuracies.