[DeTomaso] Quiet(er) mufflers?

Pantdino pantdino at aol.com
Mon Sep 3 16:19:51 EDT 2018


I think the drown comes mainly from the headers, whose fundamental frequency of vibration triggers a secondary drone in the interior. Might be why the factory used those short 4 into 1 exhaust manifolds. 

The loudness of the system is then determined by the Muffler’s or lack thereof. 

Sent from AOL Mobile Mail

On Monday, September 3, 2018, Jack DeRyke via DeTomaso <detomaso at server.detomasolist.com> wrote:

One Reno-Tahoe member successfully uses a pair of 'Turbo' 3-pass
mufflers originally meant for the turbo Corvair. They are short and fit
in the space available, 2-1/2" inlet/outlet, quiet and seem not to
restrict power as much as stock Ansas. But only a dyno-comparo will
positively answer this part. The resonance is caused by the WHOLE
exhaust system so changing only one piece may not fix this.

-----Original Message-----
From: Corey Price <coreyjprice at gmail.com>
To: Detomaso List <detomaso at server.detomasolist.com>
Sent: Mon, Sep 3, 2018 5:29 am
Subject: [DeTomaso] Quiet(er) mufflers?
All,
Is there a muffler out there that is quieter than the usual aftermarket
stuff and doesnat have a drone (resonance) at some engine RPM? I say
quieter since I realize Pantera mufflers are too short to be very
quiet. Iam asking on behalf of a local owner who said he doesnat mind
losing some power but is annoyed by noise level and drone from his
current setup. I admit I donat know what his current setup is and will
ask.
Corey
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-------------- next part --------------
   I think the drown comes mainly from the headers, whose fundamental
   frequency of vibration triggers a secondary drone in the interior.
   Might be why the factory used those short 4 into 1 exhaust manifolds.

   The loudness of the system is then determined by the Muffleras or lack
   thereof.
   Sent from AOL Mobile Mail
   On Monday, September 3, 2018, Jack DeRyke via
   DeTomaso <detomaso at server.detomasolist.com> wrote:

     One Reno-Tahoe member successfully uses a pair of 'Turbo' 3-pass
     mufflers originally meant for the turbo Corvair. They are short and
     fit
     in the space available, 2-1/2" inlet/outlet, quiet and seem not to
     restrict power as much as stock Ansas. But only a dyno-comparo will
     positively answer this part. The resonance is caused by the WHOLE
     exhaust system so changing only one piece may not fix this.
     -----Original Message-----
     From: Corey Price <[1]coreyjprice at gmail.com>
     To: Detomaso List <[2]detomaso at server.detomasolist.com>
     Sent: Mon, Sep 3, 2018 5:29 am
     Subject: [DeTomaso] Quiet(er) mufflers?
     All,
     Is there a muffler out there that is quieter than the usual
     aftermarket
     stuff and doesnat have a drone (resonance) at some engine RPM? I say
     quieter since I realize Pantera mufflers are too short to be very
     quiet. Iam asking on behalf of a local owner who said he doesnat
     mind
     losing some power but is annoyed by noise level and drone from his
     current setup. I admit I donat know what his current setup is and
     will
     ask.
     Corey
     _______________________________________________
     Detomaso Email List is not managed by POCA
     Posted emails must not exceed 1.5 Megabytes
     DeTomaso mailing list
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     [2][4]http://server.detomasolist.com/mailman/listinfo/detomaso
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     etc.)
     use the links above.
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     any
     message posted here to all past, current, or future members of the
     list. They also grant the list owner permission to maintain an
     archive
     or approve the archiving of list messages.
     References
     1. [5]mailto:DeTomaso at server.detomasolist.com
     2. [6]http://server.detomasolist.com/mailman/listinfo/detomaso
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References

   1. mailto:coreyjprice at gmail.com
   2. mailto:detomaso at server.detomasolist.com
   3. mailto:DeTomaso at server.detomasolist.com
   4. http://server.detomasolist.com/mailman/listinfo/detomaso
   5. mailto:DeTomaso at server.detomasolist.com?
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   7. mailto:DeTomaso at server.detomasolist.com
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