Well I checked the compression on my 92 SR20DE-T today and I got right at 135 all the way across the board. Is that good for this motor?

throttle open or closed? cold or hot?

even #'s across is a good sign.

hot, throttle closed.is 135 high or low

Low. Retest with the throttle all the way open.

What is the normal compression numbers for a healthy sr20 motor? I'm pretty positive that anything under 100psi is low, actually isn't the psi supposed to be around 150psi-190psi throughout all the cylinders? Please correct me if I'm wrong. Oh, TDC is essential to a compression test also correct? Sorry for semi hi-jacking this thread. :)

I think the range is 140ish-190ish is about the correct or safe range I believe. Not 100% positive. TDC, throttle open, and all the other necessary steps that u can find in a FSM or here on the forum. Please correct me if I'm wrong.

178psi is stock.

I think I did it wrong. I will try it again