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Author Topic: Best sounding Muffler for 383  (Read 4085 times)

Jason Medhurst

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Best sounding Muffler for 383
« Reply #15 on: April 24, 2008, 01:07:20 PM »

Its not just certain speeds, its related more to engine RPM and load.  I would guess between quarter and half throttle it resonates in the cabin at 1200 to 200 RPM (no tach to help me here).
 
Are there any tunable baffles or resonators that can be added?  It seems like if you can cancel out the standing wave that occurs, you can sell someone a muffler that wouldmake anyone happy.  You just sell its sound at WOT, right?
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1968 Chrysler Newport Convertible, 2002 Chevy Silverado Duramax 423RWHP, 1995 Fleetwood Brougham LT1, 2005 Ford Excursion 6.0 Diesel

Snotty

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Best sounding Muffler for 383
« Reply #16 on: May 12, 2008, 08:58:12 AM »

A friend of mine had Dynaflows installed on his '69 318 Charger.  It sounds great!  I don;t know if he used a crossover or not, sure does sound sweet though! 
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R. Dave Carr

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Best sounding Muffler for 383
« Reply #17 on: May 12, 2008, 01:48:40 PM »

The Walker Dynomax Super Turbos on my 300 sound awesome!
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Leaburn Patey

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Best sounding Muffler for 383
« Reply #18 on: May 12, 2008, 01:58:59 PM »

The drone-beleive it or not-depends on how the tailpipes exit the rear.
Too short of a tailpipe(s)will drone.
Straight pipe out? or turn downs?
Extending the tailpipes with some cheapo tips can help.
Make sure they do not extend the TOP edge of the bumper.2-1/2 -3" max.
I find turn downs are quieter. 
Plus installing sound deadening material in the car may help (Dynamat comes to mind.) This may be a bit expensive and also requires you removing the interior to install it.
 
Double check the hangers and muffs.The muffs should be clear from the floor pan.I had seen muffs tight against the floor causing drone--and interior fires...  Hangers should have some isolators in them to allow the exhaust to move with the engine and keep the vibrations/drone down.
CBarge2008-05-12 19:52:11
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1973 Satelitte wagon
1983 Dodge 400
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Leaburn Patey

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Best sounding Muffler for 383
« Reply #19 on: May 12, 2008, 02:48:37 PM »

From the factory,the tailpipes ended behind the bumper.
As shown,I left a little bit more pipe with the turndowns past the bumper to help quiet down the drone inside the car.
It works..
Note that they are not sticking out past the top of the bumper.Any longer it would look stupid.
CBarge2008-05-12 19:50:49
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1968 Newport Custom project BOAB
1973 Satelitte wagon
1983 Dodge 400
2006 300C HEMI!!

Steve

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Best sounding Muffler for 383
« Reply #20 on: May 12, 2008, 03:56:33 PM »

That's all fine and fancy.  My bumper doesn't go all the way down to the bottom of the car.  It would look stupid if I extended them.  They originally were extended on there and had him change them.  They are just behind the Valance.
 

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Snotty

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Best sounding Muffler for 383
« Reply #21 on: May 12, 2008, 06:20:56 PM »

Mine look like Steve's, but I don't think I have a picture of them. 
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steve fogel

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« Reply #22 on: May 12, 2008, 06:50:11 PM »

I have dual Flowmasters on the Belvedere, but it's a 318.......they're pretty tangy on the ears......the Hurst's rusted out pieces of crap exploded on the way home from Snotty's house.....I thought it was WWIII.........
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Jimmy

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Best sounding Muffler for 383
« Reply #23 on: May 13, 2008, 02:32:13 AM »

  383 in my 66 300, running dynomax ultra-flo mufflers and 2" pipe front to back. When I initially started the car with the mufflers it never had the tailpipes installed, it sounded horrible. After the tailpipes were installed it tamed down considerably but did drone a little. I initially nipped the pipes about 4" before the bumper with intentions of installing cheapy tips and when I finally installed them, extending about 1 1/2"- 2" past the top of the bumper, droning was gone completely.
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Snotty

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Best sounding Muffler for 383
« Reply #24 on: May 13, 2008, 10:41:40 AM »

Quote from: hurst1
I have dual Flowmasters on the Belvedere, but it's a 318.......they're pretty tangy on the ears......the Hurst's rusted out pieces of crap exploded on the way home from Snotty's house.....I thought it was WWIII.........
 
Yes, but your new ones look and sound nice!
 

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Stoga

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Best sounding Muffler for 383
« Reply #25 on: June 25, 2008, 10:19:37 PM »

I'm a fan of original style Imperial mufflers, quiet but large enough to flow well. I used to use them on my old 70 Roadrunner, you could still hear the carburetor coming open just fine!
I've got some wore out glasspacks that came on my 68 Imperial coupe, they get to droning real bad on a long cruise, so I plan to change them when I put that car back on the road.
If you mainly use your vehicle around town, loud pipes aren't such a problem, but they'll literally wear you down on a long cruise over several hours or more.



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