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Registered
Join Date: Jun 1999
Location: North Georgia
Posts: 420
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Rarly, Rattle, Turbo Owners, Advice taken see photo $0 investment !
Boys,
I've taken the advise you recommended. Today I completed the re-routing of the wastegate exhaust. I took the existing pipe from the wastegate to the muffler, cut about 1.5 inches off the end, mig welded a cap on the end and clamped with the original factory clamp. This left enough remaining pipe to heat up and shape in the the back/downwards direction. I'm anxious to test the results but my wife keeps saying there's some Holiday coming up,....women. Tortured by Porsche. Enjoy the Holidays !!!
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2014 911 GT3 1979 930 Turbo 1970 911T 2016 Cayman 2019 Macan Last edited by rboylan; 12-20-2001 at 02:26 PM.. |
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12-20-2001, 01:38 PM
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What holiday? Ferdinand Porsche's birthday isn't until September 3. Your new wastegate exhaust looks similar to what the racing 911's have used over the years, if I recall correctly. What is the purpose of this mod? Free horsepower is hard to get, so I'm always interested!
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12-20-2001, 01:52 PM
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Registered
Join Date: Jun 1999
Location: North Georgia
Posts: 420
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Rob,
I'm told this allows a more free flow of exhaust by not comingling wastegate exhaust with normal engine exhaust thru the muffler. That's what I've been told.
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2014 911 GT3 1979 930 Turbo 1970 911T 2016 Cayman 2019 Macan |
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12-20-2001, 02:09 PM
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Moderator
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Isn't is also the all-important mod required to create flame-burps to scare little children when you lift off the accelerator.
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1975 911S (in bits) 1969 911T (goes, but need fettling) 1973 BMW 2002tii (in bits, now with turbo) |
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12-20-2001, 02:48 PM
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Registered
Join Date: Jun 2001
Location: Sweden
Posts: 5,911
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Yeah man!
I have it the same way...it makes no difference until you hit full boost, then all hell breaks loose!
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Thank you for your time, |
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12-20-2001, 03:30 PM
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Anything that shoots flames from the rear of your car is a good thing!
So I'm thinking...The wastegate exhaust has "seen" the turbo's turbine, so it is at a lower velocity and temperature than the engine's exhaust (where the wastegate exhaust came from in the first place, of course). Maybe this messes with the engine exhaust's flow. In any case, you did a good job on the mod. I wish I had a mig welder and a 930 to play with! |
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12-20-2001, 03:30 PM
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Registered
Join Date: Dec 2001
Location: MA USA
Posts: 2,938
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That mod would be too loud for me
Dean |
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12-20-2001, 03:46 PM
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Registered
Join Date: Jun 2001
Location: Sweden
Posts: 5,911
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Sorry mate, no flames are going to shoot from that pipe...
When you lift of the throttle wastegate will close and no exhaust fumes are going to escape from there. On the other hand, it will allow engine to breathe easier on full boost. It's also notoriously loud at full chatt... It sounds like a ordinary 930 until full boost and then *rooooaaarr* ... great for scaring pedestrians. You can get flames by removing the muffler and tweaking deccel-valve...
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Thank you for your time, |
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12-20-2001, 03:55 PM
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Ooooops, shows what I know. Flames would be sooooo cool though
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1975 911S (in bits) 1969 911T (goes, but need fettling) 1973 BMW 2002tii (in bits, now with turbo) |
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12-20-2001, 04:15 PM
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Registered
Join Date: Jan 1999
Location: Roseville, CA
Posts: 393
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Flames are easy to achieve, on almost any car! No need to go to all that work...
Just install another spark plug near the end of the tail pipe, and wire it to any one of the normal spark plug wires. Be sure to install a push button (you probably don't want it on ALL the time) and a suitable relay inline for on/off purposes. Then crank it wide open and order up some fire! Just think, it's environmentally conscious by burning off those last remnants of unused gas. Oh, best carry a fire extinguisher too... -Boyo Last edited by boyo; 12-20-2001 at 04:23 PM.. |
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12-20-2001, 04:20 PM
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Crotchety Old Bastard
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Nice job Rich.
They make a short muffler for the wastegate if it proves too loud for you. I brought back your fuel distributor post earlier today - take a look.
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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 |
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12-20-2001, 05:43 PM
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1975, 1969 Porsche 911S, 911T 2.7S CIS, 2.0T ca
78 Porsche 911SC 3.0L, 3.3Turbo soon. 
