FW: [s-cars] Stebro vs. Stromung exhaust

[Joseph Pizzimenti]

Rusty?  Nope.
Black from soot?  Hell, yeah.

I clean them off every week, but they still get black
from running without a cat.  But when they're clean,
they're downright sexy.  ;-)

Like Scott said, if you're going to go aftermarket
bolton, get a Stromung.  I don't give 2 sh!ts about
what anyone says about empirical data, backpressure,
flow, dual pipes or what their handy dandy internet
calculator told em, when the system went on my car
(only chipped at the time), it smoothed out the
powerband a lot, brought the boost threshold down
considerably and it sure as hell felt faster.

For the money, you can't beat the Stromung as a bolt
on solution.

Now, a 3.5 inch downpipe into 2 2.5 inch pipes, that's
a whole other story, but I won't go there.  ;-)

Joe
--- Mark Strangways <strangconst at rogers.com> wrote:
> All that doesn't boad well for you system's
> justification does it now.
> My only issues with tthe Stromung is that fact my
> tips seem to be rusty
> after not even  months of use.
> Poor stainless ?
>
> Mark S
> ----- Original Message -----
> From: <QSHIPQ at aol.com>
> To: <mlped at qwest.net>; <jpostup at yahoo.com>
> Cc: <FAmoroso at svbank.com>; <brian at atomicham.com>;
> <s-car-list at audifans.com>
> Sent: Wednesday, May 28, 2003 7:43 AM
> Subject: Re: FW: [s-cars] Stebro vs. Stromung
> exhaust
>
>
> > --
> > [ Picked text/plain from multipart/alternative ]
> > 3 psi backpressure is about as low as you are
> going to see with any system
> > with mufflers attached to it.  IME, you address
> 6psi and above to realize
> gains.
> >  IMEII, a set of high flow cats onto the stock
> audi S car pipes will all
> but
> > negate actual performance measure differences
> between mongo and stromung.
> > The key is to measure backpressure just prior to
> the cat/cats.  My
> measures
> > indicated that to realize a performance gain over
> that juice can, two of
> em is
> > bettern one.
> >
> > Bottom Line:  Audi builds darn nice turbo exhausts
> from the factory.  You
> can
> > go "bigger", but really tough to equate that to
> "better"
> >
> > HTH and my .02 arbitraged thru the peso
> >
> > Scott Justusson
> > In a message dated 5/27/2003 7:32:10 PM Central
> Daylight Time,
> > mlped at qwest.net writes:
> >
> > Jeff, as Brian points out, it looks like the Don,
> Frank Amoroso, once put
> > together some similar data.  Compare what you find
> in the article &its
> > conjecture and conclusions with Frank's info
> below.
> >
> > I'd say that by comparison to the 94 WRX in
> Knowlton's article, it looks
> to
> > me like Audi already did a pretty good job with
> the UrS4/6's stock system.
> > 3.25 psi of back pressure at 16 psi of manifold
> boost at ???? (rpms not
> > given but I'd be guessing at least 6K) vs. the
> WRX's 8.7 psi of back
> > pressure to make @ 10 - 11 psi of intake manifold
> boost at 7,000 rpm.
> > Roughly half the back pressure, twice the boost in
> Stock system vs. stock.
> > Using Frank's figures for a "slightly" modified
> stock system, i.e. "Euro
> > Resonators", no measureable back pressure (?
> perhaps outside the
> > "sophisticate" VDO test gauge range of
> sensitivity) at 16 psi of manifold
> > pressure, and still less than 4 psi, i.e. a
> vibrating needle guess at 3.25
> > psi back pressure, at up to 30 psi of boost, ....
> still all on the stock
> > pipes.
> >
> > Now, if some one can (a) come up with some
> comparable data for the single
> > turbo back 3" system; and (b) produce a simple,
> elegant formula, something
> > like E=mc^2 or equivalent, to apply to how, if at
> all, this might affect
> or
> > determine PR's in Turbo maps &/or power potential
> realized or lost,... why
> > what a wonderful world this would be.
> >
> > Mike "just reinventing the wheel" Pederson
> >
> > -----Original Message-----
> > From: Brian Powell [mailto:brian at atomicham.com]
> > Sent: Tuesday, May 27, 2003 1:27 PM
> > To: mlped at qwest.net
> > Subject: RE: [s-cars] Stebro vs. Stromung exhaust
> >
> >
> > Mike,
> >
> > Frank has some of this pressure data up on the
> urs4 site (about
> > half-way down):
> >
> >
> <http://urs4.com/technical/engine/UrS4_exhaust.html>
> >
> > He measured 3.251 psig of back-pressure at 16 psig
> of boost on a stock
> > setup.
> >
> > Cheers,
> > Brian
> >
> >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> >
> http://www.audifans.com/mailman/listinfo/s-car-list
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list


=====
-------------------------------------
The following statement is false.
The preceding statement is true.
-------------------------------------

__________________________________
Do you Yahoo!?
Yahoo! Calendar - Free online calendar with sync to Outlook(TM).
http://calendar.yahoo.com