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Crotchety Old Bastard
 
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930 SSI Exhaust Nearing Completion

Thought I'd share a picture of tonights work with you all.
Ben and I have been working with SSI on a production bolt-on system using thier heat exchanger design. After a bit of work using the Evil Engine as a test mule we have a pretty nice looking final product. This weekend I hope to get a couple of oil tanks made up for customers and I'll shoot some final pics of the entire setup.




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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 10-30-2007, 08:26 PM
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New SSI exhaust system....

Brian:

Is the set you're making up for me going to have serial number 1 on it? These look great and I'm eagerly awaiting the arrival of this setup.....I'll be happy to report the results to the forum along with the usual pictures of course..

Chuck
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1987 factory Slantnosed 930 Cabriolet/Guard's red
2002 Midnight Blue 996TT X50
1999 Iris Blue 996 (Dash fire burned and totalled 9/07)
Old 10-30-2007, 09:07 PM
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Adrenaline Junkie
 
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Beautiful work, Brian! I knew John had something good up his sleeve!

Last edited by Hayabusa; 10-30-2007 at 10:23 PM..
Old 10-30-2007, 10:01 PM
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Crotchety Old Bastard
 
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No serial numbers Chuck but I believe the Y-junction is patented in some manner and has a couple of different numbers on it. That Y-junction is a work of art. Ben may post some good pictures of it alone.
I'm real happy with this and want a set for my car, trouble is my car is a terminal muffler test fit mule and I don't have time to work on it anymore!

Can you tell that the top picture and the bottom picture are two different sets?
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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

Last edited by RarlyL8; 10-31-2007 at 05:47 AM..
Old 10-31-2007, 05:44 AM
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Quote:
Originally Posted by RarlyL8 View Post
No serial numbers Chuck but I believe the Y-junction is patented in some manner and has a couple of different numbers on it. That Y-junction is a work of art. Ben may post some good pictures of it alone.
I'm real happy with this and want a set for my car, trouble is my car is a terminal muffler test fit mule and I don't have time to work on it anymore!

Can you tell that the top picture and the bottom picture are two different sets?

Yup! Sure can
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Ben

Current project 73 914-6 Gt project rusteration 2.4
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Old 10-31-2007, 06:58 AM
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does that drip-can location eliminate the use of the stock muffler, or is there a ssi specific unit that will come with the set up?
compatable with the 3.0 L cars?
pricing will be well below B&B I hope?
Bill K
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Old 10-31-2007, 07:06 AM
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does that drip-can location eliminate the use of the stock muffler, or is there a ssi specific unit that will come with the set up?
compatable with the 3.0 L cars?
pricing will be well below B&B I hope?
Bill K

Not sure how much cheaper the quality difference is huge though
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Ben

Current project 73 914-6 Gt project rusteration 2.4
Reproduction 914-6 oil tanks, 1-5/8" 914-6 heat exchangers source call 2623647426 or email mbconsulting21 @gmail.com
Old 10-31-2007, 08:03 AM
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Brian:

Yes....I can see that you changed the way the wastegate pipe comes in and around. Looks like you're fine tuning the routing.

You know that your excuse about using the engine for a jig can be rectified by simply buying another engine for your car...or using this one and buying a junker engine just for the jig..
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Old 10-31-2007, 08:26 AM
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Brian - thanks again for the greatly appreciated flange - your support is awesome!!

It's nice to see what you're working on here. Tough challenge considering exhaust systems for non-race applications are always a mix of compromises.

a. 1.625" or ?
b. What's the plan for wastegate support?
c. 321SS or ?
d. do you know what spool-up time is between the various popular header designs? My prior experience was only with N/A and now that I've been researching turbo header design criteria (i.e. flow distance, equal length, gas velocity/diameter sizes and stepping, scavenging, etc.) I'm finding boosted and N/A are effected differently.
e. being in the industrial compressor business I know that incoming flow characteristics are critical to achieving maximum compressor efficiency (i.e. optimum velocity & laminar flow) and wondering how this is being addressed.


Cheers!
Old 10-31-2007, 09:22 AM
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Crotchety Old Bastard
 
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You don't wanna know how much money I have in the engine in my car. It makes my colon spasm.
The Evil Engine pictured is my mule motor. It was built out of spare parts and free-bees from Pelican members.

From what I understand there are slight differences in the turbo positioning in the various types of 930s. These exchangers should fit a 3.0L but the Y-pipe may have to be tweek to fit the stock turbo location/bracket. I'll check into that further.
The mock up you see above is based on the stock Euro style exchangers used from '78-'89 and found on US cars from '86-on.
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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 10-31-2007, 09:25 AM
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Crotchety Old Bastard
 
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Waste gate tube will have a support bracket.
347 stailess heat exchangers and 321 stainless Y-pipe.
Spool up time and other turbo-specific qualities are dependant upon way too many things to make a general statement. What works for one turbo or application will not work for another.
The SSI exchangers with equal length primaries were designed to optimise torque during off-boost events which will enhance driveability. The Y-pipe is a compromise due to space constraints.
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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 10-31-2007, 10:00 AM
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Another plus that I found about the SSI's is it makes it a breeze to remove the piping, turbo, wastegate, muffler, etc. just by loosening the Y-pipe to SSI clamps and removing the Y-pipe all in one go.

This made getting the engine in and out a simple task as well, since the muffler and Y-pipe didn't get in the way of the jack.

Brian, definitely interested in pricing for just the Y-Pipe, as yours looks a bit more sturdier than mine. Let me know when you get it figured out.
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1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.)
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Old 10-31-2007, 11:19 AM
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Brian and Ben: I do believe you've peaked some interest here. This is going to be a project that quite a few folks will be following.....I wish you all the success possible in this venture. Hopefully, you guys can come up with something that is not only new, but, as ANGM said, has some big plusses for working on the engine in terms of ease of removal and re-installation.
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1987 factory Slantnosed 930 Cabriolet/Guard's red
2002 Midnight Blue 996TT X50
1999 Iris Blue 996 (Dash fire burned and totalled 9/07)
Old 10-31-2007, 03:14 PM
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Crotchety Old Bastard
 
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You are right about the partial disassembly, that is a HUGE plus for many different reasons. I love those v-band clamps and the machined flanges that couple the assembly. These things really are a work of art. There is nothing even close to that quality on the market today.

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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 10-31-2007, 06:51 PM
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