hey guys, i tried the search but can't get a difinitive value, and my shop manual is missing these pages... so here goes. what are reasonable values for a compression test on a 1989 crx Si, all stock. I did it textbook, and repeatedly get 130,146,150,150. these are well within 75% of eachother, so the span is good, but they seem pretty low... ANY help?!

 

mmm..I don't know what the stock values for that motor are off the top of my head, but that seems about right.
What's the CR on those things? 9.x:1 or something?

 

156 psi

Si-156 psi
dx/std-185 psi
maximum variation between cylinders 28 psi

straight out the manual.

Si compression is about 9:1
dx/std is about 9.6:1

 

hey phatrick2332, thanks! out of curiousity, which manual. I can't find this stuff anywhere in the chiltons... i think i went crosseyed looking for it yesterday.