[200q20v] Question (wastegate)

Gary Martin motogo1 at home.com
Fri Nov 16 11:10:29 EST 2001

There is all kinds of info at Scott's site, http://www.sjmautotechnik.com/
I haven't studied it, but I believe  the WGFV controls boost by bleeding off
pressure from the waste gate control. Pinch the hose=> no bleeding=> max
boost. Remove hose=> no pressure => no boost (or minimal boost).  This is
what I remember from previous discussions. I could be wrong, but I'm sure
SJM's site will explain it in detail.

91 200TQA
94 UrS4

----- Original Message -----
From: "Mike Miller" <MikeMilr at blackfoot.net>
To: <Dmohlemacher at aol.com>; <200q20v at audifans.com>; "Brett Dikeman"
<brett at cloud9.net>
Sent: Friday, November 16, 2001 12:11 AM
Subject: Re: [200q20v] Question

> ----- Original Message -----
> From: "Brett Dikeman" <brett at cloud9.net>
> > At 11:56 AM -0500 11/15/01, Dmohlemacher at aol.com wrote:
> > >There is a 1/2" (or there abouts) hose that runs from the Turbo via
> > >a banjo bolt, what does it do?  It was disconnected when I bought
> > >the car - it has run fine, I connected it, it still runs fine - ?
> >
> > Errr...That's the wastegate control hose...without it, the wastegate
> > won't open, at all...and you'll get 1.3bar of boost only.
> Correct me if I am wrong here, but if you pinch off the hose from the WGFV
> to the WG, you will get a LOT more than 1.3 bar.  BTDT. The WG opening is
> controlled by the pressure from the WGFV valve to the bottom of the WG -
> pressure - no open.
> mike
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