Post by
InsanityInc »
https://forums.nicoclub.com/insanityinc-u19073.html
Mon Jul 18, 2005 10:51 am
well, you can't really fail a compression test. I guess if you got 0's across the board it would be a failure, but your car wouldn't run if it did that.
Stock compression is 179psi. As long as you're in that general vicinity on all cylinders your compression is fine.
If it's bad, it could be a number of things, either a bad valve, bad headgasket or bad rings usually.