76 Exhaust question
Thread Starter
Le Mans Master
Joined: Sep 2004
Posts: 7,978
Likes: 1,844
From: North/Central NJ - a.k.a. Gotti in the CFNE section
St. Jude Donor '05
76 Exhaust question
Hi all,
My uncle has a 76 L-48 and the car is 100% stock. He is looking to add sound to the exhaust. Can he just replace the mufflers with flowmasters and then have it welded to the stock pipes?
He doesn't care to replace the whole exhaust if he doesn't have to.
Appreciate all insight, thanks.
-Mike
My uncle has a 76 L-48 and the car is 100% stock. He is looking to add sound to the exhaust. Can he just replace the mufflers with flowmasters and then have it welded to the stock pipes?
He doesn't care to replace the whole exhaust if he doesn't have to.
Appreciate all insight, thanks.
-Mike
Last edited by Z0Sick6; Dec 13, 2015 at 02:06 PM.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
It might help...but if he still has the large catalytic converter installed...replacing it with a new design high flow catalytic will also change the way the car sounds and the decibels when it is idling. I KNOW this for a fact.
Before you go an weld the mufflers on...crank it with NO mufflers....then set the new mufflers up to the original 'Y' pipe and crank it and listen and see if that sound pleases everyone.
The PROBLEM can be...for some people...when the engine is idling at a specific RPM...OR cruising at a specific RPM...the tone coming out of the exhaust can be disturbing to the inner ear and make the car sound obnoxious. I have dealt with this issue a lot also.
DUB
Before you go an weld the mufflers on...crank it with NO mufflers....then set the new mufflers up to the original 'Y' pipe and crank it and listen and see if that sound pleases everyone.
The PROBLEM can be...for some people...when the engine is idling at a specific RPM...OR cruising at a specific RPM...the tone coming out of the exhaust can be disturbing to the inner ear and make the car sound obnoxious. I have dealt with this issue a lot also.
DUB
Melting Slicks
Joined: Jan 2014
Posts: 2,478
Likes: 254
From: Downers Grove Illinois
It might help...but if he still has the large catalytic converter installed...replacing it with a new design high flow catalytic will also change the way the car sounds and the decibels when it is idling. I KNOW this for a fact.
Before you go an weld the mufflers on...crank it with NO mufflers....then set the new mufflers up to the original 'Y' pipe and crank it and listen and see if that sound pleases everyone.
The PROBLEM can be...for some people...when the engine is idling at a specific RPM...OR cruising at a specific RPM...the tone coming out of the exhaust can be disturbing to the inner ear and make the car sound obnoxious. I have dealt with this issue a lot also.
DUB
Before you go an weld the mufflers on...crank it with NO mufflers....then set the new mufflers up to the original 'Y' pipe and crank it and listen and see if that sound pleases everyone.
The PROBLEM can be...for some people...when the engine is idling at a specific RPM...OR cruising at a specific RPM...the tone coming out of the exhaust can be disturbing to the inner ear and make the car sound obnoxious. I have dealt with this issue a lot also.
DUB
The dual exhaust I put in my '77 would resonate at around 1700 RPM (normal around town cruising speed). Surprisingly when I advanced the base timing from 8 BTDC to 14 BTDC the resonance is almost completely gone.
Last edited by JimLentz; Dec 14, 2015 at 11:20 AM. Reason: Spelling error
