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i think i popped #7, leakdown results inside

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Old 05-20-2008, 09:39 PM
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Default i think i popped #7, leakdown results inside

well, i started out on 1,6,8,5 then got to #7 and over 50-60% loss. if i plug up the breather air comes out the intake. slightly bumping the crank back and forth really has no effect.

i went 1,6 turned crank 90 degrees, then 8,5 turned crank 90 degrees then 7. is that the right order?

possible piston, ring damage hurt the intake valve?

damn 8psi !!!!!
Old 05-20-2008, 09:46 PM
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you popped it at 8 psi? On what engine?
Old 05-20-2008, 09:54 PM
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stock long block 15-17000 miles

Last edited by ZDOG; 05-20-2008 at 09:55 PM. Reason: info
Old 05-21-2008, 12:49 AM
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This is why I am shooting for 5psi with a cam. No less than 500rwhp and no more than 550rwhp IMO.
Old 05-21-2008, 04:30 AM
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We run ProChargers all the time at 8 psi of boost without any problems. What kind of power adder do you have, and what kind of tune do you have? Bob
Old 05-21-2008, 04:50 AM
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If it is coming out of the intake, it sounds like an intake valve, not rings. Are you sure you were on the right stroke and she wasn't on the cam lobe?
Old 05-21-2008, 03:12 PM
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im running the d1sc tuner kit.

its bleeding out through the crankcase pretty good. if i put my hand over the oil fill then it leaks out the intake. the tune was pretty rich. maybe i floated the valve and they made contact?
Old 05-21-2008, 04:57 PM
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Sounds like a top piece of the ringland came off and also did some valve damage.



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