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Update. Exhaust drone, how to get it to go away!!!!
#67701
06/04/08 08:45 PM
06/04/08 08:45 PM
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Joined: Jan 2005
Posts: 279
Pacific Northwest
Weldtech
OP
enthusiast
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OP
enthusiast
Joined: Jan 2005
Posts: 279
Pacific Northwest
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I finally installed the Magnaflows, if anything was going to cure the drone I thought they would do it as they are packed tight with insulation and the exhaust does not actually bounce around inside the empty body of the mufflers.... While it is definitely better the drone is still there, not nearly as bad but.... I give up.... almost! If I can't get used to it I guess a stock type system is next, either that or try Flowmasters, but how many mufflers do I try...  I hope somebody out there can help.... 70 Challenger drop top, healthy 440, 3.55 gears. 1st - Headers and 3" exhaust with Dynomax Super Turbos and X pipe, very loud, pulsing drone/noise and did not like the sound of the X, had trouble with the ceramic coating on the headers twice and decided to ditch the whole system. 2nd - Manifolds and 2 1/2" pipe with crossover, cheap Thrush Turbos, very bad drone. 3rd - changed mufflers to Dynomax Super turbos, no change. 4th - Added 4" dia resonators before the tips, outside sound changed but no reduction in the drone. 5th - Plugged the crossover, slight reduction, the car is still quite loud (vibrates and shakes overhead covers in gas stations) but not bad when driving except at 40 to 45 MPH of course, AHHHHHHH. Anybody have this type of thing happen to them? Any ideas or suggestions? I am thinking of changing to a quiet type of muffler, any good quieter performance mufflers available? Cheerio, Rob
Last edited by Weldtech; 06/28/08 06:50 PM.
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Re: Exhaust drone, how to get it to go away!!!!
[Re: Weldtech]
#67702
06/04/08 08:52 PM
06/04/08 08:52 PM
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Joined: Jun 2006
Posts: 824
NH
72challorange
He's Game
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He's Game
Joined: Jun 2006
Posts: 824
NH
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Re: Exhaust drone, how to get it to go away!!!!
[Re: 72challorange]
#67704
06/04/08 08:57 PM
06/04/08 08:57 PM
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Joined: Jan 2005
Posts: 279
Pacific Northwest
Weldtech
OP
enthusiast
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OP
enthusiast
Joined: Jan 2005
Posts: 279
Pacific Northwest
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Yeah......
What gets me is that I have sold the identical systems to others and they have no drone!!!
Why my car?????
www.weldtechstainless.com
Where NOTHING is made in China!
70 Challenger drop top 440 4 speed R/T clone (Re-creation, Tribute, Fake, whatever...)
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Re: Exhaust drone, how to get it to go away!!!!
[Re: Weldtech]
#67706
06/04/08 08:59 PM
06/04/08 08:59 PM
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Joined: Jun 2006
Posts: 824
NH
72challorange
He's Game
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He's Game
Joined: Jun 2006
Posts: 824
NH
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Just messin with ya! Maybe a different muffler will do you. I have 40 series and enjoy the drone.LOL Tom 
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Re: Exhaust drone, how to get it to go away!!!!
[Re: Weldtech]
#67710
06/04/08 09:15 PM
06/04/08 09:15 PM
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Joined: Jun 2006
Posts: 824
NH
72challorange
He's Game
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He's Game
Joined: Jun 2006
Posts: 824
NH
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I use this to drown out the drone.LOL Tom  By tdavist, shot with DSC-P72 at 2008-04-06
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Re: Exhaust drone, how to get it to go away!!!!
[Re: Weldtech]
#67713
06/04/08 09:29 PM
06/04/08 09:29 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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just a thought
how is your ca finished
just paint on bottom of car or undercoating
how about floor padding to custion the sound resinating through the body
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Re: Exhaust drone, how to get it to go away!!!!
[Re: Weldtech]
#67714
06/04/08 09:37 PM
06/04/08 09:37 PM
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Joined: Jan 2003
Posts: 8,144
Arkansas
340727dart
master
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master
Joined: Jan 2003
Posts: 8,144
Arkansas
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My DynoMax super turbos had a slight drone around 40 mph. I put some Ultra Flows on the car and they have no drone. Plus, they sound so much better than the turbos.
Your life is not my fault.
My life is none of your business.
Speech is free only if you agree with those in control.
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Overall car is probably a little louder with headers, but that annoying drone is gone and I can now cruise in comfort and listen to music if I want to.
