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post #1 of (permalink) Old 01-30-2009, 03:07 PM Thread Starter
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ext compression

have a ac ext580 compression pressure is around 70psi each cylinder, does anybody know what the pressure should be or is this good.
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post #2 of (permalink) Old 02-02-2009, 09:45 PM
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compression

i have a 1995 580 EXT and the compression seems really low on yours, it should be around 110 and 120 psi for each side. mine is an EFI if that has any affect on compression.
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