LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Power loss and backfires?? need help

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Old May 13, 2005 | 05:01 PM
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Unhappy Power loss and backfires?? need help

I am getting a spudder and backfire/popping when the car is about to shift gears at like 5000 rpms sometimes a little higher. Also if I rev really high it does the same thing and it pops/backfires like a ****. When the car does this backfire/popping thing it loses a ton of power. I just got a new distributor, Wires,Plugs,and catalatic converter because of this problem it fixed it for a little while(like 2 days at most) and then I started getting the backfire and power lose.
Also it is being very quiet (like the cut out is covered kind of quiet)

any suggestions would be great

Last edited by 94T/A; May 15, 2005 at 11:48 PM.
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Old May 15, 2005 | 11:49 PM
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I was reading some of the posts and was wonder if an optispark could be the issue?
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Old May 16, 2005 | 02:33 PM
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From: Skippack, PA
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do u have chamber mufflers? b/c a kid at my school has that problem with his stang and its because air and oil etc. is getting caught up in them but hes running a x pipe with no cats so the air is blowing through.
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Old May 16, 2005 | 03:14 PM
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I wonder if you have a bad coil? Maybe it works fine, until you demand a lot of current from it. Its a cheap fix, maybe worth a new one.
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Old May 16, 2005 | 03:56 PM
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You know what, mine did that too a while back, it was the timing set was worn out. But mine did it very bad, under full throttle, it missed like crazy.
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