> I think it is just a matter of procuring a dual circuit MC
> and one of the
> distribution blocks (with pressure differential warning
> switch), as well as
> the lines to do the conversion. A used PDWS should be easy
> to come by, but
> be wary of used MCs, they don't lend themselves to kitting as
> well as some
> other styles so probably spring for new here.
>
When changing the single master to a 68-74 dual master, it does get a bit
more involved. To make the job easier, the brake master frame and clutch
master should be changed. The hole for the brake master is a lot bigger
(kind of a pain to file out) and the clutch master is mounted at an angle to
clear the larger brake reservoir.
This is a pretty common conversion on the vintage race scene, for those that
don't want to go all the way to a Tilton frame assembly. For comparison,
the Tilton 3 master alloy frame with hanging pedal runs about $400.00. This
gives you adjustable brake bias, but does require some fabrication work to
install.
I installed the 68-74 brake assembly in my 1980 MGB and don't plan on using
the PDWS. Given some free time, I'll come up with the brake lines required
to bypass the unit.
Kelvin.
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