[s-cars] Stromung Exhaust Install Tips

Fri Mar 20 07:33:31 PDT 2009

That crossmember secondary purpose is chassis stiffening
.  It’s primary
purpose is to prevent the driveshaft from becoming a people-skewer if it
falls the ground and jambs on something that doesn’t move.  That
clearance over the crossmember is really tight, and production
tolerances of the Stromung exhaust jig vs Audis own, can make that a
tricky fitment.  The pipe really should be ovalled there, which I’ve had
done (my exhaust guy used a 4in mandrel to bend a 3in pipe = oval 3in).
I’m still convinced most of the fitment problems are motor mount
related.  I’ve also used ¼in washers to raise up the exhaust a bit
higher for the really torquey S cars.  IME k24 Stage II and III cars are
the most sensitive to Stromung fitment issues. 

HTH and my .02

SJ

-----Original Message-----
From: Brian Armstead [mailto:barmstea at VOANews.COM] 
Sent: Friday, March 20, 2009 9:18 AM
To: Scott Justusson
Cc: 'Doug Landaeta'; 'jeff postupack'; 'S-Cars'
Subject: Re: [s-cars] Stromung Exhaust Install Tips

Scott,

The guy that installed my Stromung did not reinstall the center
crossmember.  I cannot remember why, but I'm sure it was a fit issue.
I've had no problems thus far.  Am I asking for trouble without it?

Brian
93 S4

Scott Justusson wrote:

Just a reminder to all folks from lots of BTDT on Stromung installs...
The right side motor mount failure can cause excessive torque-over of
the engine, which leverages the turbo/DP connection against the first
hanger (at the trans).  After installing a dozen or so of these systems
on 91 200 and UrS cars, my suggestion is to replace the RS motor mount
when doing this install.  I have had no Stromung exahust come back for
rewelds with this routine PM and it's a habit from my type 44 days.
Secondly, when mounting the exhaust itself, you want the exhaust mounts
installed the slightly forward position to allow for expansion when hot.
This is especially important for proper hot-clearance of the center
crossmember.

I have two Gen 1 systems running in Chicago with no rewelds - from
Jeff's first GP a long time ago....

HTH and my .02

Scott J

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Doug Landaeta
Sent: Thursday, March 19, 2009 10:28 AM
To: jeff postupack
Cc: S-Cars
Subject: Re: [s-cars] exhausts

Jeff,

I too have a broken bracket. It's good to know that there's a solution  
out there. Next time I get up to NEA, I'll ask Tim to retrofit. Do you  
think there will be any issues with flex-pipe supply?

Doug

Sent from my mobile.

On Mar 19, 2009, at 10:57 AM, jeff postupack  
 <mailto:jeff.postupack at gmail.com> <jeff.postupack at gmail.com> wrote:

Hi JC:

Sorry my post came off that way, no excuses here. Will get some  
diplomacy
training.

What is puzzling to me is, I have never had anything break, brackets  
etc.
Some have had your experience and many others have not.. I've always  
tried
to keep the cost down.. but in the end that DP flex seems to make a  
lotta
sense.

The Flex pipe was added around Dec 08..Both Tim McLean and Marc
Swanson encouraged me for good reason, so Stromung added the flex.   
been
running one on my 93 S4 since test fitment Nov 08 timeframe, so it's  
recent
indeed. There's about 6 (with flex) out there in the field now.

more in production next week too.

Take care. Jeff Posto
On Wed, Mar 18, 2009 at 10:52 PM, JC  <mailto:jc at j2c3.com> <jc at j2c3.com>
wrote:

OK - calm down dudes. My interpretation of the original order- 
turnaround
question was not at all negative - just a factual question to the  
effect
isn't the group-buy route a bit slow and are there alternatives. In  
fact
the
actual words were "What is the deal-eo with the Ur//S car  
Stromungs? Isn't
it a slow accumulation of orders over a year or so then an order is
placed?"
Doesn't sound so critical to me at all...

It was somebody else whose panties were generally in a bunch  
yesterday that
started characterizing the Cheezeman as negative...

On to real content:

Posto -- Curiosity question -- when did the system add the flex- 
pipe? I got
mine courtesy of PO who I think installed it in late 07 early 08,  
but it
doesn't have the flex-pipe.  Should it have at that time or could  
he have
gotten it from 'old stock' or 2nd hand? I had to have NEA weld up  
improved
braces after broken welds and they've duly warned me to put the  
flex piece
in lest it happen again... Unfortunately it's not high on the  
budget list
right now for them to pull it apart again and do the
cut/insert/weld/re-assemble. Otherwise it's a beautiful item fer  
sure.

Actually I enjoy meeting great people who know a good product
and can afford it and the clowns trying to buy a turbo back
stainless system for $600 delivered.. who also want to
complain about slow service. Jees!

It's not a retail operation, I convinced the owner to supply
a turbo back 3:
system and sustain production for a bunch of years.
Originally TAP, yeah, that boomy droning Gen 1 system.. where
I got involved to make it sound right.

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