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The Terminator
Terminator Talk
OK I'm stumped
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<blockquote data-quote="Nightmare302" data-source="post: 15392545" data-attributes="member: 14127"><p>Car was making ~24psi with a whipple 3.4 stock lower and 3.25 upper. I changed my tensioner and installed a nations alternator after the old alternator died. After the install my manifold pressure is only around 4 and the car taps out at 15psi exactly. It hits it and instantly stops building any more boost, no bleed off like a slipping belt it is perfect then just flat lines. I've checked for vacuum leaks but can't find any even with a smoke test. The boost bypass is functioning as it should and I do not see any signs of belt slip. I'm totally stumped. The car randomly started completely random issues starting and stumbles on a quick tap of the throttle. If you stand on it, it does fine but if you just blip it and it stumbles. Datalogs show my AFR bouncing around at idle which I assumed was the cause of a vacuum leak. I'm lost.</p></blockquote><p></p>
[QUOTE="Nightmare302, post: 15392545, member: 14127"] Car was making ~24psi with a whipple 3.4 stock lower and 3.25 upper. I changed my tensioner and installed a nations alternator after the old alternator died. After the install my manifold pressure is only around 4 and the car taps out at 15psi exactly. It hits it and instantly stops building any more boost, no bleed off like a slipping belt it is perfect then just flat lines. I've checked for vacuum leaks but can't find any even with a smoke test. The boost bypass is functioning as it should and I do not see any signs of belt slip. I'm totally stumped. The car randomly started completely random issues starting and stumbles on a quick tap of the throttle. If you stand on it, it does fine but if you just blip it and it stumbles. Datalogs show my AFR bouncing around at idle which I assumed was the cause of a vacuum leak. I'm lost. [/QUOTE]
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OK I'm stumped
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