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Registered
Join Date: Jun 2002
Location: New Hampshire
Posts: 724
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Can a choice of muffler help cool engine
I put a 3.6 in and am running 993 heat exchangers with a two in one out muffler. Now, I have read somewhere that if I switched to a two in two out that it could help in keeping everything in the exhaust area a little less HOT. Is there any truth to this?
Tom
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Ice Green '77 Targa 3.6 w/ Steve Wong chip One Way To Get More Horsepower Is To Get A Bigger Horse! "I couldn't find the sports car of my dreams, so I built it myself" Ferdinand Porsche |
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11-25-2006, 03:52 AM
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theory says yes as the back pressure should be less. but that depends on the type of muffler
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Ben 89 944,85.5 944 914-6 2.4s GT tribute. 914-6werkshop.com |
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11-25-2006, 04:15 AM
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RETIRED
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I have a single outlet and a custom cat setup....stay cool.
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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11-25-2006, 08:34 AM
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Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Well, if you could fit a Titanium muffler or two [Z06 comes to mind] ... that would certainly minimize heat transfer to the air under a 911 engine!
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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11-25-2006, 07:10 PM
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drag racing the short bus
Join Date: May 2002
Location: Location, Location...
Posts: 21,983
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I ran a two in/two out aftermarket muffler, and now have on a two in/one out factory stock.
1) Engine temps are the same, regardless. 2) Revs are the same, regardless. 3) Perceivable horsepower increase - not perceived. 4) Noise is less - but not too much less. Beyond that, I'm going with an M&K dual in/one out. You can't beat a 13# muffler no matter what's out there. 
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The Terror of Tiny Town |
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11-26-2006, 01:36 AM
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Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
Posts: 10,040
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It should not be hard to make a muffler out of sheet Titanium... it would weigh about half what steel ones do, thus saving 8 lbs off the very end of the car.
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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11-26-2006, 11:46 AM
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Da cab
