[alfa] Re: hydraulic handbrakes

[Joe Elliott <jee@xxxxxxxxxxxxxx>]

I guess you could tee another master cylinder into the rear brake 
line.  You'd have to put check valves between that junction and each 
master cylinder.  They'd have to be some pretty serious check valves 
though--brake line pressures are on the order of 1000psi.  Although, 
depending on the design of the master cylinders, maybe you wouldn't 
need those check valves at all.  I'm not sure I'd trust the brakes 
without them though.

Joe Elliott
'82 GTV-6


At 9:04 PM +0000 10/16/04, alfa-digest wrote:

> Date: Sun, 17 Oct 2004 00:34:55 +0930
> From: "Benjamin Woenig" <budweiser@domain.elided>
> Subject: [alfa] hydraulic handbrakes
>
> It seems to be common practice for race-preped cars to have a hydraulic
> handbrake fitted. I know of someone that has installed one in a
> Alfasud Sprint race car using a girling master cylinder without a
> resovior,
> but he mentioned that he installed some other valve to make it only work
> on
> the rear wheels, but this wasn't a brake bias valve. It some how
> disconnected
> the front calipers and only operated the rears. Can anyone ellaborate on
> this?
>
> Also, are there any legalities with regard to using hydraulic handbrakes
> in Australia? It seems they are illegal in some countries, in particular
> the
> UK where it will definitely fail the MOT.
>
> ~Benjamin
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