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Re: A4 Brakes in Rain



> > Brett Dikeman writes:
> >> I would be almost certain the a4 series do, especially this guy's,
> >> since it is a 1.8t :)
> >
> > No, A4 and A6 all have vacuum assist for brakes.  No more hydraulics.

Brett Dikeman writes:
> Umm, you can't have vacuum assist in a turbo car.  Think about that 
> one really hard.  Turbocharged cars spend a fair amount of time with 
> a manifold pressure that is NOT a vacuum.  You'd need some sort of 
> check valve system, and a very large reservoir, and if it runs out, 
> oh well, no brakes, eh?
> 
> Maybe your 2.8 a4 does, but I'll bet that the 1.8t certainly doesn't.

I'll let 1.8T listers answer this.  But in general, you can certainly have
turbocharged cars with vacuum assisted brakes.  The Audi type 44 cars and
UrQ are notable exceptions.

-Ti
96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
-- 
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Research Laboratories, Sunnyvale, CA. USA
  ///    ti@amb.org
 //////  http://metalab.unc.edu/tkan/
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