[s-cars] Keeping turbo spooled up

[Mihnea Cotet]

Yup, depending on the software version, it can take up to 2 secs for the 
ECU to react to a closed brake pedal switch, but on some euro TT's, S3s and 
S4tt's you have nothing, the ECU will shut the throttle instantly, the 
reaction time is programmed to 0.02 seconds from the factory.

HTH,

M.- decoding and reprogramming ME7 ECUs even when I'm sleeping- C.

At 16:58 13/09/2004 -0400, Bruce Mendel wrote:

>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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