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Guest Message by DevFuse

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compression 8.5,9,8.5,9 bar(1,2,3,4)..is a good/bad compression

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1 reply to this topic

#1 bella


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Posted 18 October 2005 - 01:18 PM

-this values whas read with hot engine....:cool:


#2 NoahDL88


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Posted 18 October 2005 - 01:32 PM

According to the FSM standard compression is 11.0-11.8 bar

The lower service limit is 9.0-9.8 depending on cranking speed

Subaru reccomends no more than 2 bar, or 28 PSI variation between cylinders

It does show an (other) category, which could be MPFI or Carby, i'm not sure, but if its MPFI the lower service limit is 8.5-9.3

Which means you should be fine, but like the rest of us, a new set of rings wouldn't hurt

* This is from the 89 XT FSM

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