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08 Boxster Compression Numbers

vza
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vza Member

vza

Posted
Posted (edited)

Hi,I have some results from a compression test :   4 263     1 260

                                                                                    5 269     2 265

                                                                                    6 270     3 260

 

From what I've read these numbers seem high...but they are less than 10% apart. Thanks V

Edited by vza
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JFP in PA Member

JFP in PA

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Posted

They are a touch high, but not by that much.  It could be a testing system accuracy issue, but meanwhile be happy they are high...........

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JFP in PA Member

JFP in PA

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Posted

Porsche uses a leak down value rather than compression testing, but any Boxster worth its salt would have compression test values north of 200-210 PSIG (throttle blade locked open during the test).

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