Operation CHARM
: Car repair manuals for everyone.
Home
>>
Subaru
>>
2005
>>
Impreza WRX F4-2.0L DOHC Turbo
>>
Repair and Diagnosis
>>
Engine, Cooling and Exhaust
>>
Engine
>>
Tune-up and Engine Performance Checks
>>
Compression Check
>>
Specifications
Compression Check: Specifications
Compression (350 rpm and fully open throttle):
Standard
1,108 - 1,304 kPa (11 - 13 kgf/cm2, 161 - 189 psi)
Limit
951 kPa (10 kgf/cm2, 138 psi)
Difference between cylinders
Less than 49 kPa (0.5 kgf/cm2, 7 psi)