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how can i make the SC sound great?
what improvements can i make with out a full s/s exhust can i squeeze a little more out of her performance ![]()
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frz :> |
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I have a 1985 Carrera, I'm very happy with my stock muffler modified with a new exhaust pipe welded to the right side. It sounds good and there is a noticeable increase in power coming in at about 4000 rpm. On a USA Carrera, a modified twin pipe exhaust coupled with a a Euro pre-muffler gives about 12 -15 hp additional ( per B. Anderson). For details, see my earlier posts on this subject on this website. In the USA the muffler mod cost me $200, but some have had it done for less than $100. Cheap way to get some good sound and a bit more HP. I don't understand why so many people here in the US go to expensive aftermarket mufflers and SSI setup on a Carrera. You can achieve nearly the same HP increase with modified stock muffer (dual outlet) and Euro pre-muffler. On a SC the results may be a slightly different but I doubt if the aftermkt muffler + SSI is cost efficient. Lot of additional money for a bit more HP. Convert your stock muffler to a dual outlet and see what happens, you might be pleased.
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DANNOV |
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Knock the stuffing out of your cat and hang on a Bursh Carrera muffler.
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Robert Stoll 83 911 SC 83 944 Last edited by rstoll; 01-30-2002 at 03:39 AM.. |
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From all I've read, it sounds like the SSIs are necessary for power gain on an SC. On an SC, I doubt that the muffler change alone would increase power much.
I will agree that knocking the stuffing out of your CAT will improve the sound. It gave my car that deep, hollow 'big block' sound. Particularly at idle. Sounded pretty serious. It did not improve noise or volume at higher RPMs though.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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DANNOV |
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Oh come on, live a little. Get a set of Jerry Woods' headers and mate them up to a pair of megaphones!
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Buy them, sell them
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Well, I'm keen to make one of these up...
![]() I'm now just looking for a Euro pre-muffler to butcher and modify. Image courtesy of Emcon5. He had one previously installed on his SC and said it sounded mean. He even posted an MP3 of it on a recent thread.
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1931 Oakland Eight Special Saloon 1985 BMW E28 525e (Euro 528e) 1989 911 Carrera Sport 3.2 G50 Cabriolet |
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I'm going to be attempting the "Flowmaster Special" conversion when I get home.
The parts are all waiting for me... and I only spent $170 for the muffler, two J pipes and a set of SS Borla tips..... we'll see...
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-- Chief Architect and Mastermind, SCWDP |
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Black and Blue
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You can always put a SCWDP sticker on your car. I hear it makes your car go faster. Since im no longer a lurker...i can say stuff like that.
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Kemo 1978 911 SC Non-Sunroof Coupe, two tone Primer Black and SWEPCO Blue, Currently serving as a Track Whore 1981 911 SC Sunroof Coupe, Pacific Blue Project, Future Daily Driver |
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Whatever you do, don't gut your cat and use it. It'll knock off about 10 HP. Also, don't buy SSIs unless you hit the lottery. In spite of what people say who have them, they don't provide hardly any more HP than a bypass pipe and a low restriction muffler (Bruce Anderson himself only measured 1/2 HP advantage between SSIs and a 2 in/2 out muffler vs a test pipe and a Performance Products sport muffler on a .32 Carrera). |
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Adam
You don't happen to have a link for that MP3 file do you? |
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DANNOV |
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well i have to say you boys are chapter an verse
you are the bomb! ![]()
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frz :> |
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Does the "dual outlet" modification for the stock Carrera muffler require any internal changes? Or is it just cut and weld?
TIA Matt
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Matt Daniels 1975 911S |
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DANNOV |
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Thanks Dannov, for the info.
Also - Mikkel - here is the link to that MP3: http://www.pelicanparts.com/MotorCity/emcon5/911sc.MP3 Matt
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Matt Daniels 1975 911S |
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Hey Dannov,
Do you know where your mechanic ended up finding the pipe? Matt
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Matt Daniels 1975 911S |
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DANNOV |
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I have to go with Dannov on this one. I ordered and am still waiting for the stainless 2 1/4 j pipe I ordered from jegs.com to show up so I can cut a section from it and have a right side tip TIG welded on. Then I'll slip on a stock black Porsche exhaust tip over it for a identical look. The 2 1/4 end will have to be swaged up to 2 3/8 to accept the tip. Here's the chart section of the B. Anderson article Dannov scanned me showing the hp similarities of ssi/w dual outlet muffler vs stock/w extra tip on 88 Carrera. Bottom graph is stock hp.
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Too big to fail
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I have a dual-in/dual-out B&B muffler for sale, and I know someone who has the headers FS. That will get you some roar!
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"You go to the track with the Porsche you have, not the Porsche you wish you had." '03 E46 M3 '57 356A Various VWs |
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