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-   -   compression / leakdown results? (http://forums.pelicanparts.com/porsche-911-technical-forum/486840-compression-leakdown-results.html)

nineball 07-21-2009 03:28 PM
compression / leakdown results?
 
the next possible 911 i am after is going in for a ppi on thursday. what are considered "good" and "bad" numbers for the results of these tests? car in question is a 1980 sc targa.

LWJ 07-21-2009 03:40 PM
I got 180 psi on my compression test. 1980 SC - US version. I have records from birth that show this to be consistent over time. This seems to be about as good as it gets. Correct me if wrong.

Larry

Hladun 07-21-2009 05:48 PM
The numbers and some bigotry

http://forums.pelicanparts.com/porsche-911-technical-forum/428453-compression-test-pressures.html?highlight=compression


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