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Old 08-08-2003, 10:26 AM   #1
tellravi
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Member#: 40409
Join Date: Jul 2003
Default Help with WRX Compression Numbers Translation

If a tech gives me WRX compression numbers on all cylinders at 65 a peice. I am assuming they are in metric. How can I translate into PSI.

Thanks
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Old 08-08-2003, 10:52 AM   #2
ride5000
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Member#: 32792
Join Date: Feb 2003
Chapter/Region: NESIC
Location: lincoln, ri
Vehicle:
2003 GGA MBP
12.9 / 105+

Default

from the FSM:

Quote:
Compression (350 rpm and fully open throttle):

Standard;
951- 1,147kPa(9.7- 11.7kgf/cm^2, 138-166 psi)

Limit;
834 kPa (8.5 kgf/cm^2, 121 psi)

Difference between cylinders;
49 kPa (0.5 kgf/cm^2, 7 psi)
in other words, i don't know what units your tech gave you. they don't seem to line up with any of the FSM numbers.

hth
ken
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Old 08-08-2003, 10:55 AM   #3
tellravi
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Member#: 40409
Join Date: Jul 2003
Default

I don't know. All I know is at 65 PSI the car would not be working.

I am thinking it may be Metric numbers. I don't know how to interpret it.
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