Weird Compression test results....

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05-16-2004, 02:43 PM

Phil99vette

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Weird Compression test results....

When I previously tested my engine all of the cylinders were between 225-235psi. This time when I did the test the results were 80-90psi. I had all of the plugs out, injectors unhooked, and cranking 4-5 times. What could be the difference?
Phillip

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05-16-2004, 02:47 PM

66ImpalaLT1

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Did you force the TB open?

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05-16-2004, 02:50 PM

Phil99vette

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Yeah, I propped the TB open with a wrench.
Phillip

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05-16-2004, 04:20 PM

Phil99vette

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I just tested another corvette and it read 75-80....maybe its the guage

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05-16-2004, 05:00 PM

Scalpel

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Quote:

Originally Posted by Phil99vette

I just tested another corvette and it read 75-80....maybe its the guage

Probably the gauge since it's reading similarly on another LS1

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