Coupe GT rear disc conversion, pressure regulator

Ti Kan ti at
Mon Jan 27 13:57:26 EST 2003

auditude at writes:
> The cables are cheap, and I'm wondering about the pressure regulator.  One =
> theory is to take the regulator from the car the axle came from.  From what=
>  I know, the regulator from the '88 90 is the same as the one on my '86 CGT.
> The other theory, which I think is the more "right" way to do it, is to use=
>  the pressure regulator that came on the '87.5 CGT.  This makes the most se=
> nse since the regulator is probably most associated with the chassis and ve=
> hicle weight, and less so the axle.
> ...

The regulator is adjustable, so it shouldn't matter which unit you use
as long as it attaches to the axle correctly via the little spring.
You should adjust it such that the rear brakes do not lock up before
the fronts.

2003 A4 1.8T multitronic
2001 S4 biturbo 6-sp
1984 5000S turbo
1980 4000 2.0 5-sp
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