Phantom Posted March 16, 2004 Share Posted March 16, 2004 For what it is worth, Lanes Wholesale Tire & Wheel in Irving, TX, http://www.lanesperformance.com does a lot more than just wheels & tires. They also will fabricate and install exhaust systems up to 4" in diameter. Not cheap, but I'm looking at a 3.5" on my 280Z28. Quote Link to comment Share on other sites More sharing options...
Sumo Posted March 17, 2004 Share Posted March 17, 2004 That's good to know to have one close by, let us know the quality of the install. Quote Link to comment Share on other sites More sharing options...
RPMS Posted April 5, 2004 Share Posted April 5, 2004 Heya! Are you SURE you want pipes that diameter? Seems like you're begging for resonance. And would it scavenge well? Seems like your exhaust velocity would be reduced quite a bit with all that volume in the pipes. You know, I still need to see your car in person. You're so close, we should get together for lunch some weekend and you can show me your toy! Scott Quote Link to comment Share on other sites More sharing options...
Phantom Posted April 5, 2004 Author Share Posted April 5, 2004 Scott - read Dual 2 1/2" - Y'd into SINGLE 3 1/2". Quote Link to comment Share on other sites More sharing options...
Phantom Posted April 8, 2004 Author Share Posted April 8, 2004 Forget the idea of a 3 1/2" from the current 'Y' pipe back. I dragged my 2 1/2" exhaust slightly leaving a Uhaul parking lot Tuesday evening. Fortunately I saw the problem and went over it very slowly so no damage. I'm going to have to find a way to run 2 1/2" to aft of the R200 and then either find a dual inlet muffler or transition to the single 3 1/2 or 4 inch there and turn straight into the muffler. Quote Link to comment Share on other sites More sharing options...
Sumo Posted April 8, 2004 Share Posted April 8, 2004 The topic of square of rectangular pipes was once discussed here, have you ever considered it? Quote Link to comment Share on other sites More sharing options...
Phantom Posted April 8, 2004 Author Share Posted April 8, 2004 Actually I've looked at "squashing the 3 1/2" down to 2 1/2" high by about 4 3/8" wide. Would work better from a flow area to do that with a 4" though. Finding someone that is that talented and can fabricate elbows and round to oval transitions is the challenge - not to mention the cost. Rectangular is another option but the flow characteristics are not as good as oval. It would be a bit easier to weld up though. That all leads back to putting a 'X' pipe where the current 'Y' pipe is and running parallel 2 1/2" to behind the R200. Easy size for any muffler shop to work with and maybe just one funky transition to get to the muffler. It is a very close fit (what isn't on these cars) but there might be room for a magnaflow muffler, a sharp 3 1/2" 90° elbow to a dual 2 1/2" to single 3 1/2" Y pipe. I just need a muffler Arteest that will rise to the challenge. Quote Link to comment Share on other sites More sharing options...
Sumo Posted April 8, 2004 Share Posted April 8, 2004 Yeah, i hear you on the transition. I've seen nice setups only to see ugly kinks or choked transitions points even with mutilated modified mandrel bends. Good luck on finding the "arteest" Quote Link to comment Share on other sites More sharing options...
RPMS Posted April 19, 2004 Share Posted April 19, 2004 Finding someone that is that talented and can fabricate elbows and round to oval transitions is the challenge Have you looked at SpinTech's website? They offer oval tubing and transitions. Perhaps they have stock pieces that you can adapt? Quote Link to comment Share on other sites More sharing options...
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