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AFD660's Avatar
 
Join Date: Sep 2008
Location: NM
Posts: 164
RarlyL8 wastegate muffler

Just finished installing Brians (rarlyL8) wastegate muffler. After snapping all 4 studs then having to get them drilled out and replaced and then replacing the wastegate spring from a 1 bar to a .7bar, a 1 day project turned into a 1 week project. Damn life gets in the way.. lol..

Finally got to take it for a test drive after it sitting for a while. Well you know when the wastegate opens up now. Its not much louder over the zork tube, but adds a nice "extra" to it. LOL.. thanks again Brian for the excellent piece of engineering and welding.





I did a hasty job in painting the housing. I know i should have painted it while it was off the wastegate but my friend that helped me had to leave so we had to reattach it before he left. lol..
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1984 930... Andial intercooler, GT35R, Zork tube, RarlyL8 wastegate pipe
Old 07-05-2010, 10:24 PM
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Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
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Not much of a "muffler", ha!
Sounds like you had about every obstical possible. You should hear these with a stock muffler; pretty cool Jeckle/Hyde.
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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 07-05-2010, 11:25 PM
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beancounter
 
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I've got the same dump pipe. It sounds good and it seemed to flow a lot better than the factory set up (on my '79 the wastegate was plumbed into the muffler).

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Jacob
Current: 1983 911 GT4 Race Car / 1999 Spec Miata / 2000 MB SL500 / 1998 MB E300TD / 1998 BMW R1100RT / 2016 KTM Duke 690
Past: 2009 997 Turbo Cab / 1979 930
Old 07-06-2010, 10:44 AM
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Join Date: Jun 2010
Location: beaux arts, wa
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Great photo. What kind/year exhaust is that?

Can someone annotate these letters for me with the correct names?



Here are my guesses:

A: Muffler
B: Exhaust pipe (why is it so long and go across the back of the car?)
C: Turbo peeking through
D: ? Turbo drip tank? If so who makes this one?
E, F: Heat exchangers
G: Wastegate "muffler"
H: Wastegate: factor? What year? Otherwise who makes it?
I: Heat exchanger outlet not connected yet, goes to passenger compartment?

Thanks!
Old 07-06-2010, 11:39 AM
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Metal Guru
 
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Join Date: May 2001
Location: Michigan
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Quote:
Originally Posted by zakthor View Post
Here are my guesses:

A: Muffler
B: Exhaust pipe (why is it so long and go across the back of the car?)
C: Turbo peeking through
D: ? Turbo drip tank? If so who makes this one?
E, F: Heat exchangers
G: Wastegate "muffler"
H: Wastegate: factor? What year? Otherwise who makes it?
I: Heat exchanger outlet not connected yet, goes to passenger compartment?
You scored 100%.
The drip tank looks like a GoingSuperFast one. I think I paid $80 for mine.
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Paul B.
'91 964 Turbo
Port matched, SC cams, K27/K29 turbo, Roush Performance custom headers w/Tial MV-S dual wastegates, Rarlyl8 muffler, LWFW, GT2 clutch & PP, BL wur, factory RS shifter, RS mounts, FVD timing mod, Big Reds, - 210 lb
Old 07-06-2010, 04:43 PM
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Crotchety Old Bastard
 
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Join Date: Jan 2000
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That system is one of mine.

The headers/exchangers are SSI,
Y-pipe is custom, RarlyL8,
Muffler is mine, RarlyL8, and exits the stock location,
Waste gate is OEM Porsche,
Dump pipe is mine, RarlyL8,
Oil sump tank is Asian.
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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 07-06-2010, 08:16 PM
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