[200q20v] 200q20v] Boost?.was: ECU upgrade question..now exhaust question

Claus Vegener vegener at post7.tele.dk
Thu Oct 25 21:46:51 EDT 2001

I have a dual cat back from BN-Pipes, Germany, slightly
narrow' than 3".
The silencer is a blow through and not so restrictive
(and heavy) as the original.
It is installed in order to handle 400 HP.
The exhaust is more pronounced at low frequencies.

I happens to come to Copenhagen now and then 
but live near Aarhus
and my 200 q Avant is brown.
Look at the audifans registry - the only from DK.
There is also a link to my old homepage with pictures
of the car.

----- Original Message ----- 
From: "Brian Link" <brianl at starsys.com>
To: <200q20v at audifans.com>
Cc: <vegener at post7.tele.dk>
Sent: Thursday, October 25, 2001 5:20 PM
Subject: [200q20v] 200q20v] Boost?.was: ECU upgrade question..now exhaust question

> Im interested in knowing what exhausts are you considering?   I have been 
> contemplating what to do about my stock exhaust.
> Keep it? seems pretty good dual ~2.25"   pros and cons?  heavy?
> custom 3" galvanized steel?  it would be the cheapest route..
> make my own 3" 304 stainless downpipe cat back,  still fairly expensive 
> $500 - $600 depending on if I have the pipes bent or buy pre bent tubes and 
> cut.
> I would be interested in hearing what others have done and what true or 
> seat of the pants performance gains they get.
> ---Claus, by chance do you have a pearl white avant in Copenhagen with 
> darkened taillights?  I was there a few weeks ago in Frederiksberg on 
> Falkoner Alle
> Brian Link
> Boulder, Co
> Message: 3
> From: "Claus Vegener" <vegener at post7.tele.dk>
> To: "Gene Caldwell" <gene.ghc at verizon.net>
> Cc: "audifan20v" <200q20v at audifans.com>
> Subject: Re: [200q20v] Boost?    ....  was: ECU upgrade question
> Date: Thu, 25 Oct 2001 13:10:33 +0200
> When the needle is fluctuating expect to find
> a leak at the pressure side.
> I at the moment use IA V, but with a spring and no
> WG-control - and my original kkk24.
> Max boost set by spring to 1.4 Bar = 20.5 PSI
> and this is falling to 16 PSI at 3. gear WOT @7000 rpm.
> I think, the kkk24 is not able to suspend more than 300 HP.
> But my back pressure from cat's and exhaust is raising to 2 PSI,
> so that's half of the culprit.
> Claus
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