No cats = Poping
Thread Starter
Racer
Joined: Nov 2002
Posts: 320
Likes: 0
From: Bradenton Florida
No cats = Poping
My friends Z28 back fires like crazy since he got his cats off. If i take my cats
off i dont want it to back fire, some burbling is fine but i dont like the loud
poping his car does. Ive read it is because the LT1 goes rich when u let off
the gas?
How could I stop it from poping if i got my cats off??
[Modified by C4kid94, 6:12 PM 8/7/2003]
off i dont want it to back fire, some burbling is fine but i dont like the loud
poping his car does. Ive read it is because the LT1 goes rich when u let off
the gas?
How could I stop it from poping if i got my cats off??
[Modified by C4kid94, 6:12 PM 8/7/2003]
Drifting
Joined: Mar 2001
Posts: 1,351
Likes: 1
From: Kingwood TX
Re: No cats = Poping (C4kid94)
I don't think its actually back firing when you let off the gas on a car without cats. Cars ran without cats for years without severe backfiring problems. Maybe someone else can verify but my car makes burbling noises with no cats or mufflers on and its not backfiring.
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: No cats = Poping (Vette9d1)
If you friends is always popping, then he is either running way too rich or he has an exhaust leak causing the problem. Mine does pop every now and then, but it is not the norm.
Drifting
Joined: Oct 2001
Posts: 1,759
Likes: 0
From: Round Rock,Austin, Texas
Re: No cats = Poping (Vette92)
If you friends is always popping, then he is either running way too rich or he has an exhaust leak causing the problem. Mine does pop every now and then, but it is not the norm.
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: No cats = Poping (RadPolo96)
If you friends is always popping, then he is either running way too rich or he has an exhaust leak causing the problem. Mine does pop every now and then, but it is not the norm.
:iagree: mine just does the gurgling
:iagree: mine just does the gurgling
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From: This city NEVER sleeps! Frank's back yard!
Re: No cats = Poping (Joe90)
The popping is combustion of unburnt hydrocarbons occuring in the exhaust manifolds, or futher down the exhaust system, depending on where the mixture gets enough oxygen to support combustion - it is likely in the exhaust manifold though, as this is the hottest spot to initiate combustion. It doesn't necessarily mean that there is an exhaust leak, just means that on lift throttle, the current calibration is a little rich - a recal is needed. :seeya