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

Popping on deaccel?

Old 08-06-2006, 03:28 PM
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Default Popping on deaccel?

Everyonce and a while on deacceleration, I will get a pop or a small back fire, is that normal for a header, ory, open borla car?
Old 08-06-2006, 03:34 PM
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I think it's normal for some LT1 setups. Mine did it also but it was fixed through the tune. I was told what tables to adjust. Forgot now.
Old 08-06-2006, 03:35 PM
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DFCO I think it is.
Old 08-06-2006, 03:50 PM
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it's a rich burn pop. Excess fuel is just igniting. Nothing to worry about but a good tune will help it.
Old 08-06-2006, 03:56 PM
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Yeah that's normal for a lot of lt1 exhausts.
Old 08-06-2006, 03:58 PM
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mine's done it for 3 different exhaust setups, stock/shorties & catback/longtubes & true duals. it's in the tune, not the exhaust.
Old 08-06-2006, 07:34 PM
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Mine does it, bad!! Extremely rich, buddies say twin flames(large flames) out the true duals at night. Not cool.
Old 08-06-2006, 11:51 PM
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I have a 96 ws6 with edelbrock headers and a magnaflow catback and it pops pretty good. My car does it under deacceleration and when shifting sometimes. I actually think it sounds cool, kind of like a race car.
Old 08-07-2006, 12:16 AM
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mine does it with open headers..
Old 08-07-2006, 05:13 AM
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lt1's always do that as far as I know, even stock
Old 08-07-2006, 11:09 PM
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Schweet. I was told it was one of two things, excess fuel, or a hole somewhere in one of the welds on my exhaust letting air get into the exhaust, which didn't make sence. Im glad you all think its excess fuel, as I was thinking I was possibly haveing a fuel pressure problem.


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