Hi,
I'm sure this has been covered but I can't seem to find anything after searching,

What should the compression be from a brand new oem Evo 8 engine?

What is the tolerance limit to know if a rebuild is nessary?

Thanks in advance

Dan

 

Standard value: 163 psi
Minimum limit: 138 psi
Pressure differences between cylinders should be below 14 psi.