[s-cars] Keeping turbo spooled up

Bruce Mendel brucem105 at comcast.net
Mon Sep 13 16:58:30 EDT 2004


You have two seconds of left foot braking in a stock S4tt before the DBW
shuts off the throttle. If you time it right, you can pulse it and get
through the braking zone, but it'll make a passenger seasick.

B
----- Original Message ----- 
From: "Mihnea Cotet" <mihnea.cotet at easynet.be>
To: <s-car-list at audifans.com>
Sent: Monday, September 13, 2004 4:55 PM
Subject: RE:[s-cars] Keeping turbo spooled up


> Indeed, left foot braking doesn't work with the way the DBW features are
> programmed in the stock S4tt ECU. These features can though be
reprogrammed
> so you can do left foot braking, I've done this for a couple of customers
> with TTs, S3s and S4tt's already.  The ECU actually shuts the throttle
> plate when you apply the brakes above a certain engine speed, vehicle
speed
> and a certain pedal setting.
>
> So it's not it :-)
>
> I still dunno what it is but I'd sure be interested in finding out what
> this method is, other than injecting fuel in the exhaust or any other form
> of anti-lag system :-)
>
> Mihnea
>
>
>
> is that a part off the newer S4s?  :)
>
> in fact, i thought you couldn't do it with the drive-by-wire system
> found on the biturbo S4.  when you hit the brakes, the ECU cuts engine
> power.
>
> -t.
>
> --- Joe Pizzimenti
> <<http://www.audifans.com/mailman/listinfo/s-car-list>joe.pizzimenti at
> gmail.com> wrote:
>
>  > Left foot braking.
>  >
>  >
>  > On Mon, 13 Sep 2004 08:43:04 -0700 (PDT), chris chambers
>  > <<http://www.audifans.com/mailman/listinfo/s-car-list>fastscirocco_2000
> at yahoo.com> wrote:
>  > > Fellow S-car nuts,
>  > >
>  > > During my Scar hose adventure I stopped by Victory Audi/VW in
>  > > Harrisburg PA  (they didn't have a hose). While there I met an
>  > > experienced Audi service Tech (25 years there) by the name of Wes
>  > > Green.
>  > >
>  > > While talking with him he told me about a method he has employed on
>  > > other UrS4's to keep the turbo spinning so it spools up quicker when
>  > > you hit the gas. It evidently involves some parts off of the newer
>  > > S4's.
>  > >
>  > > Has anyone heard anything like this? Hopefully he will be emailing me
>  > > some detailed information soon.
>  > >
>  > > Chris
>
>
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