[s-cars] Wastegate Spring

[Mark Strangways]

If you can see the Allen head of the screw that adjusts the spring seat thru
the un plugged hole at the top of the waste gate, then the screw has likely
been adjusted. No for sure, but my S4 had a thin steel plug covering the
hole.

Due to my software, and waste gate spring combo I was advised to back mine
out to 2 turns after it contacted the spring seat (done thru feel). But I
counted 13 turns to fully seated as a factory setting.

So what that means is, screw the Allen screw in till it bottoms then unscrew
it 13 complete turns.
I have no idea if this same setting applies to all year model combinations,
but it may be a start point for you.

As to if it's bad for the car !!! If the ECU cannot modulate the boost /
overboost of the turbo then I would say it's bad chipped or not. Anytime you
increase boost you increase power, provided you haven't superheated the air
and retarded the ignition timing due to the increased boost.

regards
Mark
----- Original Message -----
From: "Sean Douglas" <quattro20v at telus.net>
To: <s-car-list at audifans.com>
Sent: Friday, May 23, 2003 10:33 PM
Subject: [s-cars] Wastegate Spring


> I've heard that modifying or tightening the wastegate spring increases
> boost but does this actually do anything for power? I read somewhere
> that modifying the spring without software is bad.
>
> Since I'm the 3rd owner of my car, is there anyway to tell if the spring
> has been replaced or modified?
>
> Thanks,
>
> Sean
>
> Sean Douglas
> 1997 Audi S6
> 1990 Audi 90Q20V
> Surrey, BC
> Canada
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list