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Admiral Obvious...
 
sand_man's Avatar
 
Join Date: Oct 2005
Location: Cooterville, Carolina
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sand_man's quest for an "under bumper" wastegate pipe

Pipe welders, fabricators, and/or exhaust specialists please subscribe! I currently have a Fabspeed "Zork" tube that exists under the center of my rear bumper. I've also removed my lower rear valence. What I'm after is a wastegate pipe that exits under the rear bumper.

I currently have B&B headers and a Tial 46MM wastegate. Right now, the shorty B&B wastegate "dump tube" is serving as my WG (wastegate) exhaust.

I've always loved the look of the 934 exhausts, which employed the "zork" exiting near the center (no valence) with a much smaller diameter wastegate exhaust pipe usually running next to it. I realize that the exhaust plumbing in 934s have very little common with my 930, but there still must be a way to achieve this look.

To be honest, I'm a pretty darn good wrench, but I'm terrible at figuring out measurements for pipe elbows, angles, and radius' and such.

What should be my plan to realize my goals? Is this something that the most basic of muffler shops could fab for me? Any ideas are welcome.

Some pictures:

This is "Shockm's" engine, but the wastegate has been oriented in a different location, so it was easier to achive the look:

Taken from the Fabspeed website. The pipe on the left attaches to the wastegate and exits at the rear driver side (made to look like a "dual" exhaust):
__________________
-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 05:01 AM
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Crotchety Old Bastard
 
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Garage
Post a picture of your engine/bumber from the rear.
What heat exchangers are you using?

Best thing to do is have Ben (M&K) sell you a wastegate flange with a 1" length of pipe welded to it. Take that and your car to a muffler shop and have them add a tailpipe exactly where you want it.
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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 03-01-2007, 05:15 AM
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Admiral Obvious...
 
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Join Date: Oct 2005
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Quote:
Originally posted by RarlyL8
Post a picture of your engine/bumber from the rear.
What heat exchangers are you using?

Best thing to do is have Ben (M&K) sell you a wastegate flange with a 1" length of pipe welded to it. Take that and your car to a muffler shop and have them add a tailpipe exactly where you want it.
Thanks, Brian! I'll post some pictures of my engine and rear-end tonight if I get a chance. Currently running B&B headers with heat. That's a good idea in obtaining the flange and taking it to a muffler shop...I've never been to one and wasn't sure if they did "custom" work....I guess the yellow pages will be my friend.
__________________
-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 05:19 AM
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here is an underside shot of what is probably the same car displayed at Amelia FWIW.

Old 03-01-2007, 06:24 AM
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Admiral Obvious...
 
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Thanks, Jim! Great shot! GREAT CAR! One thing I haven't decided is if I want the wastegate to exit next to the "zork" (in the center of the car, or off to the driver's side, ala, Fabspeed style. At some point I might decide to use a small muffler, which would move my exhaust closer to the passenger side.
__________________
-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 06:29 AM
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I am with you! I think it would be great ot have one that ultimately pairs nicely with the Zork tube in a 935 type style. Would make the most sense to have it designed to fit B&B / GHL headers, stock wastegate and mate up with a zork.

I'd LOVE to have one of those!
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'88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running
Old 03-01-2007, 07:15 AM
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Admiral Obvious...
 
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Quote:
Originally posted by 930LDR
I am with you! I think it would be great ot have one that ultimately pairs nicely with the Zork tube in a 935 type style. Would make the most sense to have it designed to fit B&B / GHL headers, stock wastegate and mate up with a zork.

I'd LOVE to have one of those!
I agree, and that's one reason I posted here instead of running off to have a custom thing done. Maybe we can get an "expert" to recognize a need (demand) and fabricate something that would/could fit most "standard" B&B and GHL turbo headers.

I think it would be easiest to just run the pipe out towards the driver's side.
__________________
-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 07:25 AM
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Admiral Obvious...
 
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I'm not sure if Fabspeed would just sell the wastegate pipe (that comes with their "dual" setup) without the tip???
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-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 07:28 AM
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Mine exits out the car and it's LOUD. I'll try run through a tunnel on Sunday and post my video
Old 03-01-2007, 11:46 AM
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Admiral Obvious...
 
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Actually, with my "zork" and wastegate shorty pipe, I'm pretty well used to the loud noise! I set off about two or three car alarms every morning in my company parking garage.

So I already have the noise, what I want is just to extend the wastegate pipe. Can you please post a picture of your setup? That looks perfect!
__________________
-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 12:16 PM
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short video of it

http://www.youtube.com/watch?v=kz7MzPVYB6M
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Old 03-01-2007, 01:38 PM
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Quote:
Originally posted by RarlyL8
Best thing to do is have Ben (M&K) sell you a wastegate flange with a 1" length of pipe welded to it. Take that and your car to a muffler shop and have them add a tailpipe exactly where you want it.

Hey, I'll take one of these from Ben also!!!


Thanks,

P
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Old 03-01-2007, 03:21 PM
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Admiral Obvious...
 
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Join Date: Oct 2005
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Thanks for the video, 'Wolf!
__________________
-jeff
back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 03-01-2007, 03:34 PM
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I too am interested in a Zork tube for my '89 930 and want to have the wastegate dump pipe to exit through the old stock exhaust location like the Fabspeed dual exhaust one does. I contacted Fabspeed and they would not sell the dump pipe alone. I would be interested in purchasing a Zork tube and a dump pipe as described.
Old 03-03-2007, 10:30 AM
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