[DeTomaso] Muffler Opinions

[John Taphorn]

Bill

That is funny and helpful.  It is humorous because many of the pics were 
taken in my driveway.  It is also helpful because it shows the perforated 
pipes welded to a central ring and reinforced with the unpatented Taphorn 
GTS turbo splitter.  :^)

Sometimes what you need is right under your nose.

The bad news is that those welds to the central ring needed to be 
compromised while the mufflers were cut open.  I can't see how to break them 
loose otherwise.  It also appears that simply cutting off the tips and 
replacing with larger would not be an ideal solution unless you reopened the 
muffler to get the perforated pipe extracted.  Otherwise, it will always be 
present as an obstacle.  Oh, if I had only known about the resonator 
constriction issue before the previous GTS muffler surgeries.

All said and done, if you are willing to gut the muffler, it seems that one 
could remove the perforated pipe in the resonator to achieve the required 
diameter without requiring an investment in new mufflers.

JT

----- Original Message ----- 
From: "bill gaino" <gaino at earthlink.net>
To: "John Taphorn" <jtaphorn at kingwoodcable.com>; <MikeLDrew at aol.com>; 
<pantdino at aol.com>; <shawkins777 at comcast.net>; <michael at michaelshortt.com>; 
<wkooiman at earthlink.net>
Cc: <DeTomaso at realbig.com>
Sent: Saturday, August 07, 2010 12:33 PM
Subject: Re: [DeTomaso] Muffler Opinions


>
> Try this link for an internal view 
> http://www.spacecitypanteras.com/Technical/Gutting_the_GTS_Exhaust.htm
> -----Original Message-----
>>From: John Taphorn <jtaphorn at kingwoodcable.com>
>>Sent: Aug 7, 2010 10:00 AM
>>To: MikeLDrew at aol.com, pantdino at aol.com, shawkins777 at comcast.net, 
>>michael at michaelshortt.com, wkooiman at earthlink.net
>>Cc: DeTomaso at realbig.com
>>Subject: Re: [DeTomaso] Muffler Opinions
>>
>>Mike and others
>>
>>The construction of the resonator tip is different than I thought.  I 
>>assumed that the ceramic(?) material in the tip's end continued through 
>>the resonator.  You are correct that it only positions the metal pipe 
>>inside the resonator tip to the center.  The perforated metal pipe is 
>>exposed the rest of the length.
>>
>>However, now the perforated pipe extraction task is potentially easier.  A 
>>hole saw could be used to drill out the ceramic material that holds the 
>>perforated pipe in place at the resonator's opening.  That done, could the 
>>perforated pipe within the resonator then be extracted?
>>
>>I gutted many of these mufflers and therefore cut those perforated pipes 
>>where they extend into the muffler; however, The perforated pipes were 
>>welded to baffles within the muffler. The gutting process removes those 
>>baffles with the portion of perforated pipe that extended in the muffler 
>>body.  However, I do not recall what is left holding the perforated pipe 
>>in place on the muffler end of the resonator.  This certainly seems to be 
>>an easy method to pick up the additional diameter to go from 1.5" to 1.75" 
>>that is required with a 2.5" exhaust pipe.  Area of 2.5" pipe is ~ 4.9". 
>>Area of two 1.5" pipes (stock size) is 3.52"; 1.75" pipes is 4.8".
>>
>>So, if I use a hole saw to drill out the perforated pipe in the resonator 
>>on the outlet side, will the perforated pipe then pull out of the 
>>resonator?  Anyone have a set of GTS mufflers that are cut open for 
>>inspection?
>>
>>This seems to easy - although, I wish I understood the dilemma when I had 
>>the mufflers cut open; then I certainly could have removed the complete 
>>perforated pipe.
>>
>>JT
>>  ----- Original Message ----- 
>>  From: MikeLDrew at aol.com
>>  To: jtaphorn at kingwoodcable.com ; pantdino at aol.com ; 
>> shawkins777 at comcast.net ; michael at michaelshortt.com ; 
>> wkooiman at earthlink.net
>>  Cc: DeTomaso at realbig.com
>>  Sent: Friday, August 06, 2010 9:50 PM
>>  Subject: Re: [DeTomaso] Muffler Opinions
>>
>>
>>
>>  In a message dated 8/1/10 17 35 26, jtaphorn at kingwoodcable.com writes:
>>
>>
>>
>>    I would think it possible to drill the resonators to an acceptable ID.
>>
>>
>>
>>  You can't drill a resonator.  Resonators have an inside steel piece of 
>> pipe with holes in it, and rings at each end, which fit the ID of the 
>> chrome tip.  The only thing you can do is remove and replace the 
>> resonator with one of a larger diameter--or remove it entirely.
>>
>>  Mike
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>
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