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David's Avatar
 
Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 9,165
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RT, I do everything but the welding and I have that done at work. Unfortunately I can't sell anything I make at work.

I can provide drawings for the flange so you could have a machine shop fab it, but all the tubing is fit one piece at a time. There are probably a few race shops in town who could do it, but considering material is over $500, it wouldn't be cheap.

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2014 Cayman S
2011 Cayenne Turbo
1979 930 (475 rwhp at 0.95 bar)
Old 03-15-2009, 05:40 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #21 (permalink)
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
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Good materials and design come at a premium.

While the conical muffler inlet is optimal I cannot say there is a noticeable difference (on a mild engine) when using a slightly oversized exit pipe that quickly joins an expansion chamber. That transition does need to be close to the turbine outlet size to prevent a flat spot or lag when the turbo hits.

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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 03-15-2009, 06:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #22 (permalink)
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