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In need of a muffler

Anybody got one that they might be willing to part with? My zork got destroyed last night while pulling into a steep drive.

Thanks in advance.
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1996 Porsche 911
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Past: 1988 Venetian Blue 911 Targa, 1983 Black 930, 1984 Black 911 Coupe
Old 05-27-2010, 06:28 AM
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Crotchety Old Bastard
 
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I've got a rebuilt scratch & dent that I can sell at a good discount if you are interested. Lots of tailpipe options.
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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 05-27-2010, 06:31 AM
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Brian, IM sent.
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1996 Porsche 911
2013 BMW 335xi - Wifes car
2007 4Runner - 4x4 for Colorado snow
Past: 1988 Venetian Blue 911 Targa, 1983 Black 930, 1984 Black 911 Coupe
Old 05-27-2010, 06:36 AM
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I have a dual out B&B.
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Old 05-27-2010, 06:46 AM
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Quote:
Originally Posted by David View Post
I have a dual out B&B.
I've got one also.
Old 05-28-2010, 01:26 AM
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Guys, I have found a solution local to me and am going to pick it up today. Just a short term solution until I can get the zork fixed at a local exhaust shop.
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1996 Porsche 911
2013 BMW 335xi - Wifes car
2007 4Runner - 4x4 for Colorado snow
Past: 1988 Venetian Blue 911 Targa, 1983 Black 930, 1984 Black 911 Coupe
Old 05-28-2010, 06:03 AM
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restarting this thread as I am in need once again...looking for a single out
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1996 Porsche 911
2013 BMW 335xi - Wifes car
2007 4Runner - 4x4 for Colorado snow
Past: 1988 Venetian Blue 911 Targa, 1983 Black 930, 1984 Black 911 Coupe
Old 07-16-2010, 09:58 AM
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Porsche Crest

Taking orders here. Krafted in USA!



Exhaust : TurboKraft : Catalog Home
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Chris Carroll
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Old 07-16-2010, 11:18 AM
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Chris, looks like a nice piece but I am searching for something used.
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1996 Porsche 911
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Past: 1988 Venetian Blue 911 Targa, 1983 Black 930, 1984 Black 911 Coupe
Old 07-16-2010, 11:38 AM
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Chris,

What type of muffler is that? Chambered, straignt through.

Is the tube off the turbo, to the can, bent or is it mitered to a degree?

Thx.
Old 07-17-2010, 06:33 AM
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Quote:
Originally Posted by 911st View Post
Chris,
What type of muffler is that? Chambered, straignt through.
Is the tube off the turbo, to the can, bent or is it mitered to a degree?
Thx.
It is a straight-through type. No resonance. We mostly make "medium" sound versions (not as loud as B&B or GHL) but also have made them as quiet as stock for those wanting performance but not noise.
The tube off the turbocharger is bent, not cheat cut.
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Old 07-17-2010, 12:52 PM
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Chris,

Sounds excellent!!!

The stock style fit and modular turbo conection are nice.

I just am not a fan of using a cheat cut right at the turbine exit if possable. I am not saying I would not do it myself, just not the 'best practices' soulition.

Do you transition or have the abality to do so from the turbine exit size to the tube size?

I suspect to do so would require a CNC'd part as it would probably have to be a compound bend / transition.

It seems flow at the turbine exit can impact turbo response and performance from my studies to date.
Old 07-18-2010, 07:59 AM
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Quote:
Originally Posted by 911st View Post
Chris,
Sounds excellent!!!
The stock style fit and modular turbo conection are nice.
I just am not a fan of using a cheat cut right at the turbine exit if possable. I am not saying I would not do it myself, just not the 'best practices' soulition.
Do you transition or have the abality to do so from the turbine exit size to the tube size?
I suspect to do so would require a CNC'd part as it would probably have to be a compound bend / transition.
It seems flow at the turbine exit can impact turbo response and performance from my studies to date.
No cheat cuts.
Currently, we're making different muffler inlet pipes for these different turbine housings:
-3LDZ/K27
-Garrett GT with 3" outlet
-Garrett T31 with 2.5" outlet
And currently building a fixture for the Garrett T04 4-bolt and v-band (ex: GT40R).
Yes, flow at the turbine exit can greatly impact turbo response and performance.
Most of these are 3" discharge from the turbocharger already, and doing the transition from 2.5" up to 3.0" for the T31 is not difficult.
(FWIW, the 2.5" flows just fine -- tested at 595rwhp on 100-octane on 3.5L.)
Mufflers are currently built to order. 2x O2 ports are for Lambda sensors -- upper port is for a permanently installed sensor, lower port is for dyno testing.
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Old 07-19-2010, 08:52 AM
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Chris,

Thx.

I would just guess as long as we keep the wast gate exhaust separated and are running modest sized hot side turbo's, 2.5" could be just fine. I have wondered about that.

Did the 3.5 motor have a single standard sized WG or twin WG's?

It some point it would seem over-boost might become more an issue before the turbo muffler's tube size becomes an issue. Depending on the turbo but that is just a guess on my part.

Expecially with the small K27-7200 based turbo's that have the larger compressor wheels fitted.

The best.
Old 07-19-2010, 10:17 AM
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Quote:
Originally Posted by 911st View Post
I would just guess as long as we keep the wast gate exhaust separated and are running modest sized hot side turbo's, 2.5" could be just fine. I have wondered about that.
Did the 3.5 motor have a single standard sized WG or twin WG's?
Actually, I would have no problem routing the wastegate back into the muffler inlet on an engine with a 2.5" outlet turbocharger. All our mufflers are 3"throughout, and that flows plenty.
That 595rwhp was a single OEM wastegate. 100-octane, 1.4bar.
On 91-octane is was 515rwhp @ 1.0bar, 560rwhp @ 1.25bar.
3.5L, 38mm ported heads, 964 cams, 930 flat manifold, B&B headers, Garrett BB turbocharger, 3" muffler, B&B "full width" (C2T-style) intercooler, Motec M600 engine management, twin-plug inductive ignition. The B&B intercooler was the limiting factor on that engine, it just would let us cross 600rwhp.
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Old 07-19-2010, 10:33 AM
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Thx Chris,

I bow to your experance but you would probably have a tough time selling me on running a WG and turbo through a single 3" muffler on a 650hp motor. Turbo or NA. Just seems sub optimal. Even with our short exhaust runs.

Great stock style exit muffler.





Just a guess.
Old 07-19-2010, 04:37 PM
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Muffler

In the event you may wish to "make something" I suggest you take a look at my 930 Flowmaster project. Pretty straightforward and sounds quite good in my opinion.

EP Slick - Tucsom
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Old 07-20-2010, 05:43 AM
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I like that slick!!!
Old 07-20-2010, 04:19 PM
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