Join Date: Mar 2013
Location: Ontario, Canada
More is better but that reading seems high. JDM engines have more boost but not likely more static compression.
For the USDM EJ205 the compression test standards are (static compression 8:1):
Compression (350 rpm and fully open throttle):
981 -1,177 kPa (142 - 171 psi)
Limit (too low)
882 kPa (128 psi)
Difference between cylinders
Less than 49 kPa (7 psi)
Why don't you ask him to share the documented results of the compression test?
Laszlo - blue '04 WRX
Meet the turbocharged rally-bred Subaru WRX.