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[GMCnet] Re: Exhaust bang bang bang [message #366778 is a reply to message #366776]

Tue, 14 September 2021 16:38

Keith V

Messages: 2337
Registered: March 2008
Location: Mounds View,MN

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Senior Member

Mine has never done that with or without a carb with headers and 3" exhaust with a single rumbly flowmaster 80 in the back
Popping would seem to indicate unburned fuel in the exhaust. How is that happening?
________________________________
From: John R.Lebetski
Sent: Tuesday, September 14, 2021 3:27 PM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Re: Exhaust bang bang bang

Mine will “burble” during long engine braking, but I have my exact GM copy exhaust system installed so it is barely noticeable.
I suspect your idle mixture may be adding extra fuel causing this to be more pronounced. If you have 3” stainless this may exaggerate it. Correct
mixture is balanced best idle just at the lean drop edge. “Emissions” setting would be 25 RPM lean drop per side to get 50 RPM lean drop.
--
John Lebetski
Woodstock, IL
77 Eleganza II
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Keith Vasilakes
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[Message index]

		Exhaust bang bang bang By: boybach on Tue, 14 September 2021 11:18
		Re: Exhaust bang bang bang By: JohnL455 on Tue, 14 September 2021 15:27
		[GMCnet] Re: Exhaust bang bang bang By: Keith V on Tue, 14 September 2021 16:38
		Re: [GMCnet] Re: Exhaust bang bang bang By: Bill Van Vlack on Tue, 14 September 2021 17:57
		[GMCnet] Re: Exhaust bang bang bang By: James Hupy on Tue, 14 September 2021 19:21
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Tue, 14 September 2021 21:17
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Tue, 14 September 2021 19:11
		Re: Exhaust bang bang bang By: boybach on Tue, 14 September 2021 19:18
		Re: Exhaust bang bang bang By: Matt Colie on Wed, 15 September 2021 08:49
		[GMCnet] Re: Exhaust bang bang bang By: James Hupy on Wed, 15 September 2021 09:13
		Re: Exhaust bang bang bang By: JohnL455 on Wed, 15 September 2021 08:18
		Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 11:20
		[GMCnet] Re: Exhaust bang bang bang By: sgltrac on Wed, 15 September 2021 11:32
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 12:35
		Re: [GMCnet] Re: Exhaust bang bang bang By: mghamms on Wed, 15 September 2021 15:17
		Re: [GMCnet] Re: Exhaust bang bang bang By: Matt Colie on Wed, 15 September 2021 19:03
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 21:29
		[GMCnet] Re: Exhaust bang bang bang By: sgltrac on Wed, 15 September 2021 16:08
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 17:07
		[GMCnet] Re: Exhaust bang bang bang By: Rob on Wed, 15 September 2021 17:13
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 21:32
		[GMCnet] Re: Exhaust bang bang bang By: Rob on Wed, 15 September 2021 21:38
		Re: Exhaust bang bang bang By: JohnL455 on Wed, 15 September 2021 15:56
		Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 17:03
		Re: Exhaust bang bang bang By: boybach on Wed, 15 September 2021 17:17
		Re: Exhaust bang bang bang By: boybach on Thu, 16 September 2021 14:54
		[GMCnet] Re: Exhaust bang bang bang By: Ken Henderson on Thu, 16 September 2021 15:01
		[GMCnet] Re: Exhaust bang bang bang By: larry.schaffer on Thu, 16 September 2021 16:25
		[GMCnet] Re: Exhaust bang bang bang By: Ken Henderson on Thu, 16 September 2021 16:36
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Thu, 16 September 2021 21:11
		[GMCnet] Re: Exhaust bang bang bang By: Ken Henderson on Fri, 17 September 2021 05:02
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Fri, 17 September 2021 09:28
		[GMCnet] Re: Exhaust bang bang bang By: jimk on Fri, 17 September 2021 09:47
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Fri, 17 September 2021 10:40
		[GMCnet] Re: Exhaust bang bang bang By: Rob on Fri, 17 September 2021 11:22
		Re: [GMCnet] Re: Exhaust bang bang bang By: boybach on Fri, 17 September 2021 11:39

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