So. What are the basic differences in the GTS exhaust as compared to non? (I've looked in my books but just dont see much there)
thanks........bob
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Both std & GTS are made by ANSA of Italy, but the std exhaust has a 1.75" OD inlet tube and a 'final baffle' on the outlet of each chrome pipe, while the GTS muffler has a 2.25" OD inlet pipe and no final baffle. This of course matches the much higher exhaust flow from the semi-equal-length GTS headers. And even the GTS muffler is restrictive when you're dealing with a street-modified 351C, not even a racer. See the tech article in the Dec 2003 POCA news on gutting and modifying the internal baffles in GTS mufflers to allow an extra 500 rpms in the upper gears, without making excessive noise.
Jack........You are da man! As always thanks alot for that input.
Jack, I've got 4into1 headers with 2" diameter opening at collector, triangular flange. Can I make this work with ANSA GTS mufflers or would I be forced to make a header change?
jack,
Where could I find this article ?
I would like to read it.
Thanks
Jim
Where could I find this article ?
I would like to read it.
Thanks
Jim
quote:
Originally posted by jack deryke:
Both std & GTS are made by ANSA of Italy, but the std exhaust has a 1.75" OD inlet tube and a 'final baffle' on the outlet of each chrome pipe, while the GTS muffler has a 2.25" OD inlet pipe and no final baffle. This of course matches the much higher exhaust flow from the semi-equal-length GTS headers. And even the GTS muffler is restrictive when you're dealing with a street-modified 351C, not even a racer. See the tech article in the Dec 2003 POCA news on gutting and modifying the internal baffles in GTS mufflers to allow an extra 500 rpms in the upper gears, without making excessive noise.
Jim, Its in the Dec POCA newsletter. Or you can visit http://www.spacecitypanteras.com/Technical/Gutting_the_GTS_Exhaust.htm
Gene
Gene
Thank you so very much....
quote:
Originally posted by Cousteau:
Jim, Its in the Dec POCA newsletter. Or you can visit http://www.spacecitypanteras.com/Technical/Gutting_the_GTS_Exhaust.htm
Gene
Got a question for you.
I have baffles in my exhaust tips too, would removing these do anything performance wise ?
I have baffles in my exhaust tips too, would removing these do anything performance wise ?
quote:
Originally posted by Cousteau:
Jim, Its in the Dec POCA newsletter. Or you can visit http://www.spacecitypanteras.com/Technical/Gutting_the_GTS_Exhaust.htm
Gene
quote:
Originally posted by Cozman:
Got a question for you.
I have baffles in my exhaust tips too, would removing these do anything performance wise ?
Jim,
Here is an earlier posting from Jack that may answer your question.. but not sure if you're referring to this final baffle.
"There is a "final baffle" installed in most stock Ansa mufflers that can, with a little care, be cheaply removed to increase noise & gas flow about equally. Stick a long pipe into each chrome tailpipe; inside, it will run into a common steel washer tack-welded onto the perforated baffle. By judiciously whacking the end of the pipe, the washer can be broken loose or bent out of the way of exhaust gas flow. This happens automatically on some Panteras. If the washer breaks loose, it will 'jingle' at idle but be covered by engine noise at driving speeds. If the jingle bothers you, you'll have to slice open the muffler body & extract the loose washer. On my '72, two of the 4 washers were broken when I received the car with 13,000 miles. Note this baffle-washer is not there on real 'GTS' mufflers, which your 'Euro' Pantera may have as-stock."
thx,Gene
That answers it Gene.
Thank you Sir.
Appreciate the response.
Thank you Sir.
Appreciate the response.
quote:
Originally posted by Cousteau:
Jim,
Here is an earlier posting from Jack that may answer your question.. but not sure if you're referring to this final baffle.
"There is a "final baffle" installed in most stock Ansa mufflers that can, with a little care, be cheaply removed to increase noise & gas flow about equally. Stick a long pipe into each chrome tailpipe; inside, it will run into a common steel washer tack-welded onto the perforated baffle. By judiciously whacking the end of the pipe, the washer can be broken loose or bent out of the way of exhaust gas flow. This happens automatically on some Panteras. If the washer breaks loose, it will 'jingle' at idle but be covered by engine noise at driving speeds. If the jingle bothers you, you'll have to slice open the muffler body & extract the loose washer. On my '72, two of the 4 washers were broken when I received the car with 13,000 miles. Note this baffle-washer is not there on real 'GTS' mufflers, which your 'Euro' Pantera may have as-stock."
thx,Gene