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How many lbs of compression ???

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How many lbs of compression ???

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Old 09-03-2008 | 06:32 AM
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Just did a compression test and leak down test this week on my 540 9:1 with shaved heads, 147 to 152 lbs in all cylinders. Leak down showed 7 to 11%, this was a cold engine.
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Old 09-03-2008 | 08:00 AM
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From: Boca Raton, FL
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Originally Posted by fastedy
Just did a compression test and leak down test this week on my 540 9:1 with shaved heads, 147 to 152 lbs in all cylinders. Leak down showed 7 to 11%, this was a cold engine.
Sweet. Those are good numbers that will only get better with a warm engine. Often a survey customer wants a compression test with the survey. If I can get good numbers like yours cold, then the warmed-up numbers will be even better.
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