Originally posted by crxrocks
The compression readings should be slightly higher than those listed above. The big thing is that there isn't a huge variance between cylinders. I think that the difference between cylinders should be less than 10% or something like that.
a better test than compression are leakdown tests where < 10% for a production car, < 7% for a daily drivable race car, < 3% for an professionally built race car engine