[urq] Brake Booster Rebuild Kit

Martin Pajak Martin at quattro.ca
Tue Feb 24 07:18:30 EST 2004

I've been running vacuum assist on my Ur-q for almost 5 years now... without any vacuum pump or a vacuum accumulator... and it works great.
The booster holds 2-3 pump fulls anyway and I never find myself without any assist...  even when left foot braking.

Not to mention the way better pedal feel... nice rock solid.
Only problem is, if you want to keep the Ur-q MC, you need to use the early brake booster from 1980-84 cars... the newer '85 and up booster will not work with the Ur-q booster.

Martin Pajak

---------- Original Message ----------------------------------
From: "Buchholz, Steven" <Steven.Buchholz at kla-tencor.com>
Date:  Mon, 23 Feb 2004 18:17:17 -0800

>... 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.
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