[urq] Brake Booster Rebuild Kit

[Justin]

All this talk about brake boosters has motivated me to give some
input/questions.  I'm currently doing a turbo conversion on my 4kq with an
WR engine.  Since I know of many who have done this without an external
vacuum pump, I have assumed that turbo engines produce enough manifold
vacuum to supply the brake booster.  Does anyone know this to be true?
Also, I've have thought of using a Idle stablizer valve to work in
(parallel) and in place of a cam driven vacuum pump..(like on the 4kq's)..
Has anyone else tried this, or is this even necessary on high vacuum turbo
engines?
Justin
----- Original Message -----
From: "Buchholz, Steven" <Steven.Buchholz at kla-tencor.com>
To: <urq at audifans.com>
Sent: Monday, February 23, 2004 6:17 PM
Subject: RE: [urq] Brake Booster Rebuild Kit


> ... while it is not likely I would end up doing the mod myself, I can see
> the motivation to do so on the cars that were imported to the USA.  Parts
> are getting more and more difficult to come by and considerably more
> expensive too!
>
> In effect what you would be doing is simplifying the hydraulic system so
> that it becomes a simple power steering setup ... like the GT Coupe, with
> the vacuum boosted brakes like the Coupe too.  The reason Audi installed
the
> hydraulic brake assist is because you can't always count on a supply of
> vacuum on a boosted engine, but you can solve that problem with an
auxiliary
> vacuum pump (as other marques did to for turbocharged engines).  Think
about
> it ... no more valve body ... no more bomb and no more pressure switches
to
> leak ...
>
> As I write this post I am starting to wonder if I shouldn't go ahead and
do
> this too ... I know my brake booster is seeping into the passenger
> compartment ... anyone have any recommendations for vacuum pumps?
>
> Steve B
> San Jose, Kaleefohnia (USA)
> >
> > ...  I've considered doing the same but would shy away from it in
> > the case of anything short of an engine replacement.
> _______________________________________________
> Audifans urq mailing list
> Send posts to: mailto:urq at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/urq
> Have an urq question?  Check the Audifans Knowledgebase!
> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/UrQuattro
> Have an urq answer? ... Please help others by adding to the KB ... all
contributions welcome!