bullet mufflers as resonators
#2241844
01/26/17 08:13 PM
01/26/17 08:13 PM
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Joined: Aug 2003
Posts: 501 Easton, PA
68DART360
OP
mopar
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OP
mopar
Joined: Aug 2003
Posts: 501
Easton, PA
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My 3" exhaust with dynomax round race mufflers is a bit loud. Thinking about adding dynomax bullet mufflers as resonators. Anyone else do this? Also would dynomax ultra flo mufflers make much difference in sound to the race magnums?
Last edited by 68DART360; 01/26/17 08:21 PM.
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Re: bullet mufflers as resonators
[Re: 68DART360]
#2241866
01/26/17 08:47 PM
01/26/17 08:47 PM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Posts: 36,040
Lincoln Nebraska
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yes some glasspacks alongside the rear leafs will quiet it significantly. I use cheap parts house cherry bombs, the louvers are punched outward and the end nipples do not neck down where they are welded to the main body case, both plusses. It'd very likely be much cheaper than dynomax bullet muffs
live every 24 hour block of time like it's your last day on earth
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Re: bullet mufflers as resonators
[Re: 68DART360]
#2242258
01/27/17 02:05 PM
01/27/17 02:05 PM
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Joined: Jan 2005
Posts: 4,366 Michigan
MarkZ
Worthy
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Worthy
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Posts: 4,366
Michigan
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What about 2.5" tail pipes from the mufflers to the bumper?
1987 Fifth Avenue - 512/518/D60
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Re: bullet mufflers as resonators
[Re: BradH]
#2242333
01/27/17 04:24 PM
01/27/17 04:24 PM
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Joined: Jan 2004
Posts: 4,539 Motor City
6PKRTSE
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Motor City
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Yes, I had,to install a pair on my Charger. It was just too loud for me for as much as I drive it. I must be getting old. My ears used to ring after driving for hours. Much quieter now and my ears don't ring anymore.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: bullet mufflers as resonators
[Re: 68DART360]
#2243438
01/29/17 04:36 PM
01/29/17 04:36 PM
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Joined: Oct 2004
Posts: 16,452 Canada
CrAzYMoPaRGuY
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I Live Here
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I have a Jensen Interceptor. 440 2x4bbl with a 270H comp cam. 9.5 to 1. I put on Delta S&S headers which are like a block hugger header with a longer collector and slightly longer primaries. I made my own 2 1/2" mandrel bent exhaust straight out the rear, no crossover. I have very large Walker mufflers each side in the original muffler hangers. 2 1/2" in and 2 1/2" out. I built 2 1/2" Dynomax Bullets into my exhaust tips.
I love the sound of the car. It's very loud bass tone honestly. It's not quiet. But I love the exhaust note - would love it if any of my other MoPars had the same sound. Maybe a touch of drone at certain speeds and rpms but it's the exact sound I like. And I've owned quite a few performance 440s.....
CrAzYMoPaRGuY
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Re: bullet mufflers as resonators
[Re: Rob C]
#2459168
03/01/18 12:02 AM
03/01/18 12:02 AM
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Joined: Oct 2004
Posts: 16,452 Canada
CrAzYMoPaRGuY
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I Live Here
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I used Dyno Max Super Turbos behind a 5.9 Magnum w/Hooker Super Comp headers. (1-3/4) into a 2-1/2 exhaust. Pretty good on its own. The Magna Flows take a few more decibels out.
Strange delayed question!! How do you like the sound? I just bought 2 1/2" Dynomax Super Turbos and I have Hooker 5115 SuperComps. Pretty quiet?
CrAzYMoPaRGuY
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Re: bullet mufflers as resonators
[Re: 68DART360]
#2459309
03/01/18 11:19 AM
03/01/18 11:19 AM
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Joined: Jan 2003
Posts: 13,319 Marion, South Carolina [><]
an8sec70cuda
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Heard of a lot of people using the Bullets as resonators and seems to work real well. Guess I'm not old enough for it to bother me yet. Bullets are cheap, but parts store glasspacks are cheaper...as long as you can find them in 3". Most are 2.25" or 2.5".
Changing to 2.5" tailpipes won't make a difference.
Someone mentioned earlier about experimenting w/ a PVC reducer at the tailpipe...it'll melt quick. Had a friend try to make a "stack" on his little 4 cyl. pickup truck out of a piece of 4" dia. PVC pipe. It started melting before he got out of his driveway and fell over in the bed 1/4 mile down the road, lol.
Super Turbos are much quieter and don't drone, but they WILL hurt the power noticeably.
Went through this w/ my dad's 440-6 road runner w/ 3" exhaust. Ultraflows droned too much for him. Replaced w/ Super Turbos...sounded good, no drone, but very noticeable drop in power. Replaced them w/ Hooker Aerochamber mufflers and now he's happy. Got the power back, sounds great w/ very little, if any, drone.
And BTW...Those welded X Dynomax mufflers can't flow very well. Look at how the "X" is constructed inside them compared to a well built X pipe crossover. The "X" in the muffler basically restricts down to the size of one pipe.
Last edited by an8sec70cuda; 03/01/18 11:32 AM.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: bullet mufflers as resonators
[Re: an8sec70cuda]
#2459516
03/01/18 06:34 PM
03/01/18 06:34 PM
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Joined: Jan 2004
Posts: 4,539 Motor City
6PKRTSE
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I must be getting old also. I added the bullet mufflers as resonators on my Charger since I drive it so many miles during the summer & it made a world of difference for the drone on my home built X pipe 3" full dual exhaust with Flowbastard mufflers that has been on their since the late 80's early 90's. Much quieter at all speeds now & still sounds great at idle. No good pictures of them under the car though, sorry. I have them tucked up under both sides of the gas tank going thru the stock tips modified for the 3" exhaust. You can't even see them unless you really look for them.
Last edited by 6PKRTSE; 03/01/18 06:36 PM.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: bullet mufflers as resonators
[Re: 68DART360]
#2460579
03/03/18 07:00 PM
03/03/18 07:00 PM
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Joined: Oct 2004
Posts: 16,452 Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
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I have 2 1/2" Dynomax bullets as resonators on my Jensen Interceptor, its VERY loud and very bassy. I bought 2 1/2"Super Turbos for my Cordoba. Fairly stock 318. I'm pretty sure it ain't gonna suffer toooooo much power wise....? It's a 318! Dual 2 1/2" mandrel bent exhaust pipes!
CrAzYMoPaRGuY
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Re: bullet mufflers as resonators
[Re: 360view]
#2460713
03/04/18 02:03 AM
03/04/18 02:03 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Lincoln Nebraska
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my cheapie cherry bombs did work but like most glasspacks they do get louder over time. the louvers were punched outward & the end nipples did not neck down where welded to the main case, big plusses & they could easily be replaced as the noise got objectionable.
live every 24 hour block of time like it's your last day on earth
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