[s-cars] Overboost

[Mark Strangways]

Speaking of overboost...
I was wondering if any one out there knows if there is any output from the
ECU that goes active in overboost only ?
It's likely a slim chance but there seems to be some knowledge of the ECU
internals on the list.
The idea behind it would be to enable a water injection device during
overboost only.

Just a thought anyways,

Mark
----- Original Message -----
From: "Kirby Smith" <kirby.a.smith at verizon.net>
To: "Eyvind Spangen" <eyvind.spangen at c2i.net>
Cc: <s-car-list at audifans.com>
Sent: Sunday, March 30, 2003 1:41 PM
Subject: Re: [s-cars] Overboost


> Before I shifted boost control to my A'pexi boost controller I used the
> A'pexi to monitor boost, both for the stock ECU and the replacement
> Hoppen Stage 1 ECU.  Stock could reach 1.1 kg/cm^2 and the Stage 1 could
> reach 1.3 kg/cm^2.  These units of measure are close to but not exactly
> equivalent to bar, and are overpressures relative to atmospheric
> pressure.  So 2.1 should be your overboost in action.  Whether you get
> overboost is determined by your ECU, which Scott J. asserts operates
> within one of 160 available boost pressure vs. rpm maps selected by the
> ECU based on various factors.
>
> kirby, 95 S6
>
>
> Eyvind Spangen wrote:
> >
> > A friend of mine just bought a '96 S6. It goes right up to 1.9 on the
> > dash gauge, but how and when should the overboost kick in? We've seen
> > 2.1 on the gauge about two times, but don't know if it should be more
> > often..
> >
> > --
> > MVH
> > Eyvind Spangen
> >
> > _______________________________________________
> > 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