blomman Posted October 18, 2010 Share Posted October 18, 2010 Here is my 911 Super Carrera from 1978 Lindgreen metallic, never resprayed 85000km SSI with a modified -74 muffler Fuchs 7+8x16" with 205/55/16, 225/50/16 Michelin Cup Front: Camber -1.2 toe 0 Rear: Camber -2.4 toe in 1.4mm Link to comment Share on other sites More sharing options...
Aldo Posted October 18, 2010 Share Posted October 18, 2010 Love the colour. I like all of those 70's metallics and almost bought a targa once just for the metallic blue it was painted in. VERY COOL CAR. Link to comment Share on other sites More sharing options...
GaryH Posted October 18, 2010 Share Posted October 18, 2010 Welcome. Nice setup Jonas Does it have a sunroof ? What suspension/brakes are you running ? Link to comment Share on other sites More sharing options...
Fred Posted October 18, 2010 Share Posted October 18, 2010 very nice! that a rock star interior! Link to comment Share on other sites More sharing options...
Al_W Posted October 18, 2010 Share Posted October 18, 2010 Hi Jonas and welcome! Great looking car, but that's one seriously deep steering wheel boss you have Link to comment Share on other sites More sharing options...
blomman Posted October 18, 2010 Author Share Posted October 18, 2010 (edited) Welcome. Nice setup Jonas Does it have a sunroof ? What suspension/brakes are you running ? Thanks! Yes it has a sunroof, unfortunately. I´m very tall but with a recaro apex racing seat it works really well. I have the Bilstein clubsport shocks, standard brake calipers with vented/drilled discs and ferodo race pads. Works good, no heating problems. /jonas Edited October 18, 2010 by blomman Link to comment Share on other sites More sharing options...
blomman Posted October 18, 2010 Author Share Posted October 18, 2010 Hi Jonas and welcome!Great looking car, but that's one seriously deep steering wheel boss you have Yep, because of my length I need a deep boss to get the steering wheel at the right place. It´s actually two who is bolted together and then a momo impact hub in the bottom. jonas Link to comment Share on other sites More sharing options...
GaryH Posted October 19, 2010 Share Posted October 19, 2010 (edited) Yep, because of my length I need a deep boss to get the steering wheel at the right place. It´s actually two who is bolted together and then a momo impact hub in the bottom. The Prototipo is very flat (hence the need for a deep boss). I'm thinking of changing mine to a deeper dished Momo 07. I have the Bilstein clubsport shocks, standard brake calipers with vented/drilled discs and ferodo race pads. Works good, no heating problems. I have the Clubsport Billies on mine too. Have you upgraded the torsion bars ? Edited October 19, 2010 by GaryH Link to comment Share on other sites More sharing options...
Fred Posted October 19, 2010 Share Posted October 19, 2010 I see that you are driving with an Apex seat. Proper... Link to comment Share on other sites More sharing options...
blomman Posted October 19, 2010 Author Share Posted October 19, 2010 The Prototipo is very flat (hence the need for a deep boss). I'm thinking of changing mine to a deeper dished Momo 07. I have the Clubsport Billies on mine too. Have you upgraded the torsion bars ? I really like the looks/feel of the flat prototipo, don´t want to change it so I had to fabricte this boss. I´ve upgraded the rear torsion bars to 26mm, the fronts are still stock. /jonas Link to comment Share on other sites More sharing options...
GaryH Posted October 19, 2010 Share Posted October 19, 2010 I´ve upgraded the rear torsion bars to 26mm, the fronts are still stock. 19/26 TB's is a good balance for an SC. I have them on mine Did you upgrade the ARB's too ? Link to comment Share on other sites More sharing options...
blomman Posted October 19, 2010 Author Share Posted October 19, 2010 19/26 TB's is a good balance for an SC. I have them on mine Did you upgrade the ARB's too ? What´s the dimension of the standard TB front of an sc, is it 18? What is "ARB"? jonas Link to comment Share on other sites More sharing options...
Dr Rock Posted October 19, 2010 Share Posted October 19, 2010 What is "ARB"? Anti Roll Bar Link to comment Share on other sites More sharing options...
GaryH Posted October 19, 2010 Share Posted October 19, 2010 What´s the dimension of the standard TB front of an sc, is it 18?What is "ARB"? I 'thought' it was 19mm. Did it vary from early SC's (like your '78) to late ones (like my '82) ? ARB is Anti-Roll Bar (as the good Dr says). Link to comment Share on other sites More sharing options...
blomman Posted October 19, 2010 Author Share Posted October 19, 2010 I 'thought' it was 19mm. Did it vary from early SC's (like your '78) to late ones (like my '82) ? ARB is Anti-Roll Bar (as the good Dr says). Have to check that up, I thought it was 18. My anti roll bars are standard. jonas Link to comment Share on other sites More sharing options...
jannek Posted October 22, 2010 Share Posted October 22, 2010 Nice car! I love the color combination. Did you modify the muffler yourself? Stainless or mild steel? Link to comment Share on other sites More sharing options...
blomman Posted October 22, 2010 Author Share Posted October 22, 2010 Nice car! I love the color combination. Did you modify the muffler yourself? Stainless or mild steel? Thanks! Yes I did it my self, it´s mild steel. jonas Link to comment Share on other sites More sharing options...
Kroggers Posted October 22, 2010 Share Posted October 22, 2010 Great, another ib.com member from Scandinavia - welcome Jonas Oh and, niece car... Link to comment Share on other sites More sharing options...
jannek Posted October 22, 2010 Share Posted October 22, 2010 (edited) So you basically added those two pipes in the same chamber where the SSIs connect on the other side of the muffler? Or was there some other mofidication needed aswell? This would be a cool mod, but I guess a bit more challenging with stainless steel. I wonder if it affects the AF mixture when you change the caps in different position? Edited October 22, 2010 by jannek Link to comment Share on other sites More sharing options...
Kroggers Posted October 22, 2010 Share Posted October 22, 2010 These were posted on the Swedish Porsche Club web page some days back... Link to comment Share on other sites More sharing options...
jannek Posted October 22, 2010 Share Posted October 22, 2010 (edited) . Edited October 22, 2010 by jannek Link to comment Share on other sites More sharing options...
blomman Posted October 22, 2010 Author Share Posted October 22, 2010 (edited) First you have to backdate the entire exhaust system to older model with SSI heat exchangers with two outs to the muffler. Then I got hold of an extra lower part of the bumper, and made two openings with a hole saw. I started from a -74 years of muffler. They have two entrances but one tailpipe to fit the G-model. It was cut open. Then modified it like the first picture but without modification of the right end of the tube. Then installed the new pipes like in the picture underneath. With all three open the CO is too low to run, it loses power, and very much resonance up to 3000rpm. With only the original pipe open it sound nice with a raspy type of sound. The original pipe stuffed it sounds more at idle but not very high. From 4000rpm it sounds wonderful! It does not sound to much of banmötena. If you put this muffler on a car with carburetors it sounds much higher. A funny little thing is that this system I built after seeing old pictures of cars with this system. When I had the car at Perry my mechanic, who have worked with björn Waldegård and others from the -60th til today, he says: - I see you have that type of muffler, you know it was me, we started with these, we experimented with the two piped rally mufflers that sounded to much between the special stages in rallies in the 70's so we took an original muffler and scored three pipes out and plugged the middle ones between special stages. He also explained that the effect was weaker with all open and around 10hk more with the original barrel plugged. The difference in CO content between the various options were as follows: All open: 1.2 middle ones open: 2.5 Original pipe open: 3.5 jonas Edited October 22, 2010 by blomman Link to comment Share on other sites More sharing options...
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