redoing a 66-s with new masters.
after talking with pal of mine who used to race classics
about the install of the masters he said when i do it ,to dump
the servo,there would not much difference.
any thoughts /
thanks,doug

 

I assume you have 10" wheels and Cooper S discs. I've heard the servo helps, and I've heard people say it makes relatively little difference. I have a '67 with 10x6 wheels and Cooper S discs, and I've thought about adding a servo. Graham at Heritage Garage suggested I might want to do it, since the car stops well but you can't really "stand it on its nose" (as Graham put it).

If you're trying to do a resto that really is a resto (i.e., keep it an authentic Cooper S), then I'd keep it in just for that reason.

 

I have two classic Minis, both with 1275 S Engines (woody wagon and sedan), both running 10 X4.5 inch wheels, using S disk brakes. The wagon is my autocross and rally car. It does not have a servo and I have EBC pads in it. The sedan is a genuine 67 Austin Cooper S and has the servo and I run EBC green pads in it as well. Both cars stop fine, the sedan with its servo requires less pedal pressure. I would have to say that the stopping power is the same in both cars, it just takes more (but not an exccess of) pedal pressure without the servo.

I echo the comment that if the car you are restoring is a genuine S then by all means include the servo, otherwise you can live without it. A Mark I car has a unique servo that can be hard to find to be "original", but MiniSpares used to sell a substitute servo that looked correct for the Mark I's. That said, I have driven cars with servos installed that the servo was not working properly and almost tossed me through the windscreen with very gentle pressure on brake pedal. My S with servo is like I imagine they must have been originally, it gives a very progressive pedal feel that just requires less pedal pressure than the non-servo cars. One good thing if you have a Mk I servo is that last time I checked you could still find the rebuild kits for them.

cheers,

Paul
67 Austin Cooper S, 68 Morris Mini Traveller, 2003 MCS, (soon to be 2006 MCS), all BRG

 

thanks all for the replys.
my 66 s is stock but tired. disc on front,2 su, 10 ect. 77,000 m
it has been maintaned pretty good though the years &customized
slightly. my plan is to go to the ralley car look 4 lights on front,numbers,
stripes ect. car is red with black roof , rool bar. will post pictures as
i go along.
doug

 

ps. i"m lucky--no rust or bondo