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Quick Muffler Mod Question - SC muffler
Can anyone clarify if there are any negative effects on performance or whatever if I shorten my standard SC muffler? What I mean to do is remove a 6-10" section out of the passenger side of it.
Thanks
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Shane - 1984 928S Last edited by SCWDP911; 07-27-2007 at 01:53 PM.. |
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07-27-2007, 01:04 PM
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Information Junky
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,189
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one thing you can bet on; the Porsche engine development team didn't add size and material to the muffler for no reason.
Many, of course, feel that they are out smarting that team of engineers, which stupidly made the muffler bigger, heavier and lower performing than it obviously could be. 
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Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong. Disclaimer: the above was 2¢ worth. More information is available as my professional opinion, which is provided for an exorbitant fee. 
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07-27-2007, 01:45 PM
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Quote:
I am just curious how light the stock muffler can be made and still retain enough muffler capabilities for the exahaust path, and have a better than stock sound. So far, it's a cheap mod and fun to goof around with.
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Shane - 1984 928S |
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07-27-2007, 01:56 PM
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Information Junky
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,189
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"better than stock sound" is very subjective. Lower tones resonate better in bigger tubes .... higher tones in smaller . You know, church organs, and all those sound relations... ...basic physics.
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Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong. Disclaimer: the above was 2¢ worth. More information is available as my professional opinion, which is provided for an exorbitant fee.
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07-27-2007, 02:13 PM
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drag racing the short bus
Join Date: May 2002
Location: Location, Location...
Posts: 21,983
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Take your car to the track a couple times, and you'll get a better sound from the muffler. After a few sessions, the tone of my muffler has become noticeably deeper. I really wouldn't do any internal messing around with the baffling. Like the good doctor says, outsmarting the OEM engineers might be a chump's game in this dept. Besides which, the OEM muffler provides a certain amount of back pressure that our engines seem to respond well to in most every driving condition.
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The Terror of Tiny Town |
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07-27-2007, 03:30 PM
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Join Date: Jan 2002
Location: Long Beach CA, the sewer by the sea.
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Quote:
The thing has expired on the operating table.  
Last edited by milt; 07-27-2007 at 05:11 PM.. |
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07-27-2007, 05:09 PM
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Dang.... it must have been the rat poison! No, really...
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Shane - 1984 928S |
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07-27-2007, 05:14 PM
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RETIRED
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Nope....what Jimmy Hoffa looks like after the meat grinder and THEN run through a CIS inection System......
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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07-27-2007, 10:38 PM
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Da cab
