Running a little funny
Thread Starter
Joined: Mar 2003
Posts: 1,149
Likes: 1
From: Gladstone, Missouri
Car: 91 Camaro RS
Engine: 5.0L TBI (ebl inside)
Transmission: T-5
Axle/Gears: 3.42 lsd 10 bolt
Running a little funny
Ever since we put a complete exhaust (headers, y-pipe, muffler, ect.) on my friends' 91 305 tbi 700r4, you can basically hear it bank fire at idle while in gear. When you put it in neutral this goes away and the idle goes up just a tad. I believe this is something simple, but I can think of it.
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iTrader: (2)
Joined: Jan 2002
Posts: 9,962
Likes: 5
From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Is it more of a pop, or is it really backfiring? I wouldnt worry if its just popping a little. Ive had cars do that before. Probably the idle is a bit on the lean side.
Thread Starter
Joined: Mar 2003
Posts: 1,149
Likes: 1
From: Gladstone, Missouri
Car: 91 Camaro RS
Engine: 5.0L TBI (ebl inside)
Transmission: T-5
Axle/Gears: 3.42 lsd 10 bolt
More like you can hear/ feel every cylinder fire. Its not back firing though.
Joined: Feb 2001
Posts: 13,758
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
It is common to hear various new ticking soudns with headers. The thin walls of the exhaust primaries do not dampen out sounds like the stock cast manifolds do. You can sometimes hear the fire as well as valve trian noise.
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