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low psi on compression test

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Old 10-14-2003, 03:30 PM
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Default low psi on compression test

I just did a compression test on my car. The motor was warm almost 1 hour after driving it. I let it turn over 5x on each. This is on a d15b7 with 87k and i have been running 7.5 psi of boost for about 6 weeks. This is what i got.

4 3 2 1
149 146 148 150

Looks good but low psi.

"EDIT retest at WOT"
4 3 2 1
200 190 202 197
does this look good?


Modified by civic dx at 6:57 PM 10/14/2003
Old 10-14-2003, 04:51 PM
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awesome
the one low cyl could be a tight valve so you could heck you valve adjustment but its not bad at all for a stock d15 being boosted


Modified by solo2slocivic at 2:04 AM 10/15/2003
Old 10-14-2003, 04:56 PM
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Default Re: low psi on compression test (civic dx)

thats not bad.. as long as it is within 10% of the OEM specs then its "good". but your not bad at all! IMO
Old 10-14-2003, 05:46 PM
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Default Re: low psi on compression test (davken1102)

i have not done a valve adjustment in a wile
Old 10-18-2003, 11:57 PM
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Default Re: low psi on compression test (civic dx)

check your valve adj, it cant hurt and if you have the time go for it!
Old 10-19-2003, 12:20 AM
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Default Re: low psi on compression test (civic dx)

nice #'s.
Old 10-19-2003, 12:51 AM
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Default Re: low psi on compression test (Typesi2nv)

I gained 12 psi in one cylinder by valve adjustment one time
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