Felpro Permatorque MLS Gaskets
06-09-2009, 07:48 AM
#14
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06-09-2009, 01:32 PM
#15
The gasket is not the problem. Keep looking. And get studs to hold the heads on.
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06-09-2009, 06:27 PM
#16
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Dynoed at 760hp, fuel to air mixture i believe he said was 13:1? Bolts not studs, did not use new head bolts? 6.5 lbs boost, 871 bds, too much? 9 psi fuel pressure at idle, mechanical pump, did not change, weak? use 93 octane, not enough?
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06-10-2009, 01:36 AM
#18
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I would say your AF needs to be under 12.0 to make the engines live long and happy.
What is the static comp ratio????? It needs to be less than about 8.75 with 6.5-7# of boost to safely run 93 octane fuel.
What is the static comp ratio????? It needs to be less than about 8.75 with 6.5-7# of boost to safely run 93 octane fuel.
06-10-2009, 08:47 AM
#19
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Intercooler? Fuel pressure needs to be measured at carb at wide open. 6-7lbs. wot is ok. Do some searches here on detonation and supercharged engines, lots of info available.
Last edited by PatriYacht; 06-10-2009 at 08:51 AM.
06-12-2009, 01:31 PM
#20
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the MLS gaskets have a very touchy torque sequence . as well as needing to be retorqued after break in . I sold and ren fel pro performance gasket for 15 years and had no problems and the MLS gaskets are top notch . I chose to run the standard marine/performance series gaskets and im seeing around 7.5 lbs of boost with no problems yet . sounds like a lean burn or possibly failure if they didn't get retorqued after running
