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Old 05-25-2004, 10:31 PM
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Smile knock under load

Well I finally woke up and purchased the enhanced atap. Ltrims are slightly negative and zero out at WOT. My problem is I get knock if I punch it at a low RPM, say 1500 in 3rd, like 5.5degrees. Also I get knock at about 4500 rpm at WOT, but not as severe, usually 2-3 degrees. I am just looking for a few pointers to get me rolling in the right direction.
Old 05-26-2004, 06:47 PM
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Also the o2's read B1 - .920-.930 and B2 - .940-.950 at WOT.
Old 05-28-2004, 02:23 PM
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what year car do you have?

do you have headers? other mods? maf ported? screen!?

give me some more details and i might beable to help.
Old 05-29-2004, 01:02 AM
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Lid, catch can, long tubes, dual exhaust w/ xpipe, 4.10's, I had milled my heads .30 after hydrolocking the motor a couple years ago (long story), vacuum ref.fuel pressure regulator, 38lb injectors and a fuel pump, EDIT. I use to have a turbo. (even longer story)

Jeremy
Old 05-29-2004, 01:03 AM
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Stock maf, and its a 1999 Trans Am




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