[s-cars] Stromung Exhaust Install Tips

Fri Mar 20 08:42:09 PDT 2009

Thanks Scott!

Brian

Scott Justusson wrote:

> 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>
>
>[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  
>
><jeff.postupack at gmail.com> <mailto: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 <jc at j2c3.com> <mailto: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.
>>>>
>>>> 
>>>>
>>>>        
>>>>
>>> 
>>>
>>> 
>>>
>>>__________ Information from ESET NOD32 Antivirus, version of virus
>>>
>>>signature
>>>
>>>database 3946 (20090318) __________
>>>
>>> 
>>>
>>>The message was checked by ESET NOD32 Antivirus.
>>>
>>> 
>>>
>>>http://www.eset.com
>>>
>>> 
>>>
>>> 
>>>
>>> 
>>>
>>> 
>>>
>>>      
>>>
>>_______________________________________________
>>
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>>
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>>
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>>
>>    
>>
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