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Re: Coupe going to rear disc brakes

I installed rear discs from a 1985 VW GTI (to keep my 4x100 wheels).
There was no need to get a different master cylinder.  Little 
adjustment on the proportioning valve on the rear axle and in no time 
I had the rear tires locking up before the fronts.
It made a night and day difference.  The brake pedal got harder and 
less pressure was required to stop the car.  Also this was before I 
went in for the 10.1" discs in front, so fade that was noticed before 
(under heavy play) was gone with rear discs.  

> One thing I would be extremely cautious about is the brake master
> cylinder; i would doubt if the orig. used on drum brakes would be proper
> for discs.  I believe discs require significantly higher pressures; could
> fiind that the fronts are doing all the braking.
> If you know this already, well, goo!
> Ray Calvo (porsray@aol.com)
> In a message dated 96-12-15 00:33:25 EST, you write:
>  Heh, heh, heh.  Bought myself a little birthday present:  the rear axle
>  & brake setup from an early Audi 90.  This is the solid beam with rear
>  disc brakes, and should be a drop in replacement for the existing drum
>  brakes on my Coupe GT.  Not that the drum brakes are bad or anything,
>  I am just doing this because it _can_ be done.  :)
>  Later,
>  Eric
>  '85 Coupe GT, goin' fer that '87 GT look
>  - ---
>  Eric J. Fluhr                                Email:  ejfluhr@austin.ibm.com
>  630FP Logic/Circuit Design                   Phone:  (512) 838-7589
>  IBM Microelectronics Div.                    Austin, TX
>   >>
Martin Pajak

1982 Coupe (430,000 km)
1984 4000s quattro (320,000 km under the wrench)
1970 Porsche 911E Targa (also under the wrench)

Who put my tools in the dishwasher?