Previous Thread
Next Thread
Print Thread
Page 1 of 3 1 2 3
Muffler drone, Please recommend for ones that dont! #2298641
05/04/17 01:05 AM
05/04/17 01:05 AM
Joined: Jan 2006
Posts: 835
Alberta
4
4mulaS Offline OP
super stock
4mulaS  Offline OP
super stock
4

Joined: Jan 2006
Posts: 835
Alberta
Well, my Road Runner which I recently re-acquired certainly has a drone loud enough to annoy my wife and it does bother me somewhat too.

Im pretty sure they are stainless flomasters right now, and I will confirm this tomorrow,

So I am looking for recommends on descent sounding mufflers with no drone.

It's currently a fresh 383, somewhat Lopey comp cam, with 2 1/2 inch exhaust to the bumper.

Please help so my wife will actually want to cruise with me

Last edited by 4mulaS; 05/04/17 01:49 AM.

66Scar
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298650
05/04/17 01:24 AM
05/04/17 01:24 AM
Joined: Feb 2012
Posts: 4,443
Morristown Tn.
7
71birdJ68 Offline
master
71birdJ68  Offline
master
7

Joined: Feb 2012
Posts: 4,443
Morristown Tn.
Get a nice factory type muffler from Accrete Exhaust. I remember when my RR had the factory mufflers, and it was quite until you stepped on it, and it didn't drone.

Last edited by 71birdJ68; 05/04/17 01:25 AM.
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298658
05/04/17 01:37 AM
05/04/17 01:37 AM
Joined: Dec 2003
Posts: 4,951
northwest USA
N
NANKET Offline
master
NANKET  Offline
master
N

Joined: Dec 2003
Posts: 4,951
northwest USA
Accurate mufflers are nice sounding just like he says above. Prett quiet inside the car, mild rumble at the bumper at idle.

Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298684
05/04/17 02:35 AM
05/04/17 02:35 AM
Joined: Jan 2006
Posts: 835
Alberta
4
4mulaS Offline OP
super stock
4mulaS  Offline OP
super stock
4

Joined: Jan 2006
Posts: 835
Alberta
The stock aluminized ones or their magna (I think that's what it's called) hi po version? Pertaining to accurate stuff?

Last edited by 4mulaS; 05/04/17 11:54 AM.

66Scar
Re: Muffler drone, Please recommend for ones that dont! [Re: NANKET] #2298688
05/04/17 02:39 AM
05/04/17 02:39 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Keep what you have and add a pair of "cherry bomb" brand glasspacks alongside the rear leaf springs. O'reillys has em for cheap. the louvers are punched outward & the end nipples do not neck down where they are welded to the main case both of which are beneficial for good flow & they do work.


live every 24 hour block of time like it's your last day on earth
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298720
05/04/17 05:38 AM
05/04/17 05:38 AM
Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar Offline
master
451Mopar  Offline
master

Joined: May 2008
Posts: 5,399
Aurora, Colorado
I put Walker quiet flow SS mufflers on the convertible.

Walker 22154 Quiet-Flow Stainless Steel Muffler, but it really was too long to fit well (29").

The Walker #21498 quiet flow SS (fits a 2004-2006 Chrysler Pacifica) show s to be 2-1/2" in/out, and just $64 from summit racing, just have to cut off the welded on muffler hangers. These are smaller 13" long case mufflers 20" tip to tip. Says they are a turbo style muffler.

Looks like the outlet tube may be angle cut for the exhaust exit? It could be cut straight and swedged to connect to the tial pipes?

Re: Muffler drone, Please recommend for ones that dont! [Re: 451Mopar] #2298723
05/04/17 06:31 AM
05/04/17 06:31 AM
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi Offline
master
sthemi  Offline
master

Joined: Jun 2004
Posts: 3,319
Chicago Burbs
Dynomax Super turbo mufflers, nice sound around town, totally quiet above 50 MPH.. No drone at any speed.

Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298733
05/04/17 09:03 AM
05/04/17 09:03 AM
Joined: Feb 2005
Posts: 4,309
Prospect, PA
BSB67 Offline
master
BSB67  Offline
master

Joined: Feb 2005
Posts: 4,309
Prospect, PA
Originally Posted By 4mulaS
Well, my Road Runner which I recently re-acquired certainly has a drone loud enough to annoy my wife and it does bother me somewhat too.

Im pretty sure they are stainless flomasters right now, and I will confirm this tomorrow,

So I am looking for recommends on descent sounding mufflers with no drone.

It's currently a fresh 383, somewhat Lopey comp cam, with 2 1/2 inch exhaust to the bumper.

Please help so my wife will actually want to cruise with me


Headers or exhaust manifolds?

Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298761
05/04/17 10:48 AM
05/04/17 10:48 AM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
T
therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
T

Joined: Jan 2003
Posts: 21,050
Niles , Ohio
I run Summits stainless on my 440.They have a nice mellow sound pretty much straight thru but when crusing they are nice.Put them on at least 12 years ago and they still look pretty and shiny.That and no seams and were like 60 bucks each.Rocky


Chrysler Firepower
Re: Muffler drone, Please recommend for ones that dont! [Re: RapidRobert] #2298764
05/04/17 10:52 AM
05/04/17 10:52 AM
Joined: Jan 2003
Posts: 11,890
Benton, IL.
D
DaveRS23 Online rolleyes
Special needs idiot
DaveRS23  Online Rolleyes
Special needs idiot
D

Joined: Jan 2003
Posts: 11,890
Benton, IL.
Originally Posted By RapidRobert
Keep what you have and add a pair of "cherry bomb" brand glasspacks alongside the rear leaf springs. O'reillys has em for cheap. the louvers are punched outward & the end nipples do not neck down where they are welded to the main case both of which are beneficial for good flow & they do work.


iagree

Put any cheap bullet glass packs in the tail pipes to deal with the drone.


Master, again and still
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298765
05/04/17 10:56 AM
05/04/17 10:56 AM
Joined: Dec 2016
Posts: 381
Ottawa, Ontario
L.R Helbling Offline
enthusiast
L.R Helbling  Offline
enthusiast

Joined: Dec 2016
Posts: 381
Ottawa, Ontario
I've got a 383 Roadrunner with 2-1/2 inch exhaust with OE manifolds and mild lump cam. The exhaust system that I've been using now for about 10 years is Flowtech. Aluminized steel which is all weldable. Very happy with performance. No drone and no blowouts after 10 years.

Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298767
05/04/17 10:57 AM
05/04/17 10:57 AM
Joined: Dec 2016
Posts: 381
Ottawa, Ontario
L.R Helbling Offline
enthusiast
L.R Helbling  Offline
enthusiast

Joined: Dec 2016
Posts: 381
Ottawa, Ontario
Oooops. Mufflers are Terminators.

Re: Muffler drone, Please recommend for ones that dont! [Re: BSB67] #2298804
05/04/17 11:50 AM
05/04/17 11:50 AM
Joined: Jan 2006
Posts: 835
Alberta
4
4mulaS Offline OP
super stock
4mulaS  Offline OP
super stock
4

Joined: Jan 2006
Posts: 835
Alberta
Originally Posted By BSB67


Headers or exhaust manifolds?


Manifolds


66Scar
Re: Muffler drone, Please recommend for ones that dont! [Re: L.R Helbling] #2298806
05/04/17 11:52 AM
05/04/17 11:52 AM
Joined: Jan 2006
Posts: 835
Alberta
4
4mulaS Offline OP
super stock
4mulaS  Offline OP
super stock
4

Joined: Jan 2006
Posts: 835
Alberta
Originally Posted By L.R Helbling
Oooops. Mufflers are Terminators.


Who makes a terminator?

To the other two who recommended adding a cherry bomb (essentially a resonator) how will this prevent drone in the existing muffler?


66Scar
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298843
05/04/17 12:54 PM
05/04/17 12:54 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Quote:
To the other two who recommended adding a cherry bomb (essentially a resonator) how will this prevent drone in the existing muffler?
Just trust us, it WILL work (& it is cheap/easy to cut your pipes & add em in).


live every 24 hour block of time like it's your last day on earth
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298872
05/04/17 01:47 PM
05/04/17 01:47 PM
Joined: Jan 2003
Posts: 17,800
S.E. Michigan
ZIPPY Offline
I Live Here
ZIPPY  Offline
I Live Here

Joined: Jan 2003
Posts: 17,800
S.E. Michigan
Any of the dynomax super turbo mufflers that have a 20" long case will
do what you want.

https://www.summitracing.com/parts/wlk-17748
https://www.summitracing.com/parts/wlk-17749


Rich H.

Esse Quam Videri




Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298880
05/04/17 02:12 PM
05/04/17 02:12 PM
Joined: Dec 2016
Posts: 381
Ottawa, Ontario
L.R Helbling Offline
enthusiast
L.R Helbling  Offline
enthusiast

Joined: Dec 2016
Posts: 381
Ottawa, Ontario
Originally Posted By 4mulaS
Originally Posted By L.R Helbling
Oooops. Mufflers are Terminators.


Who makes a terminator?

To the other two who recommended adding a cherry bomb (essentially a resonator) how will this prevent drone in the existing muffler?


Terminator mufflers are made by Flowtech Inc. Do a Google search to see where the closest dealer is to your location.

Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298903
05/04/17 02:40 PM
05/04/17 02:40 PM
Joined: Jan 2003
Posts: 28,063
Irving, TX
feets Offline
Senior Management
feets  Offline
Senior Management

Joined: Jan 2003
Posts: 28,063
Irving, TX
Originally Posted By 4mulaS
Originally Posted By L.R Helbling
Oooops. Mufflers are Terminators.


Who makes a terminator?

To the other two who recommended adding a cherry bomb (essentially a resonator) how will this prevent drone in the existing muffler?


The exhaust pulses going through the pipes create an unpleasant resonance. That resonance is the drone you hear.

Adding resonators modifies the resonation and reduces the effect.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: Muffler drone, Please recommend for ones that dont! [Re: feets] #2298931
05/04/17 03:27 PM
05/04/17 03:27 PM
Joined: Jan 2006
Posts: 835
Alberta
4
4mulaS Offline OP
super stock
4mulaS  Offline OP
super stock
4

Joined: Jan 2006
Posts: 835
Alberta
Originally Posted By feets
Originally Posted By 4mulaS


To the other two who recommended adding a cherry bomb (essentially a resonator) how will this prevent drone in the existing muffler?


The exhaust pulses going through the pipes create an unpleasant resonance. That resonance is the drone you hear.

Adding resonators modifies the resonation and reduces the effect.


Is this achieved by increasing back pressure? I never knew that it was the resonance in the pipe that caused the drone, always thought it was the muffler?. I'm just the kind of guy who really likes to know what's going on before I spend cash.. (Read cheap! Lol)

As and UPDATE TO ALL: they are currently a Dynomax muffler 20" long body and about 24 1/2 to 25" long from tip to tip of the inlet & outlet. The inlet and outlet size mic'd to be close to 2.5". Do they use ID or OD for determining what size inlet and outlet are? From their web the best i can say is they are the 17513 model.

It is also a welded muffler. Does mean it's stainless?

I'm not adverse to adding a resonator, but I really don't want to butcher the exhaust further if this does not cure it..

All this input is great! Please continue!


Last edited by 4mulaS; 05/04/17 03:38 PM. Reason: add content

66Scar
Re: Muffler drone, Please recommend for ones that dont! [Re: 4mulaS] #2298984
05/04/17 04:32 PM
05/04/17 04:32 PM
Joined: Oct 2007
Posts: 733
New York
R/T1968R/T Offline
super stock
R/T1968R/T  Offline
super stock

Joined: Oct 2007
Posts: 733
New York
KEEP THE MUFFLERS, GET A NEW WIFE!! blah

Last edited by R/T1968R/T; 05/04/17 04:33 PM.
Page 1 of 3 1 2 3






Powered by UBB.threads™ PHP Forum Software 7.7.1