With a single leading shoe setup I would just fit a VH44.

You know how people say that a booster just makes the brake pedal lighter and will not give you any more braking.
They say that the stopping distance is the same with and without a booster because the shortest stopping distance is just before the wheels lock up.
Well what happens when you can't physically lock the wheels? (like an 850 with single leading shoe brakes)
When you fit a booster to inferior brakes it will give a shorter stopping distance as you will be able to finally reach the point of lock up.

Twin leading shoes are a kind of booster in a way. The servo action of the shoes give the boost. (try braking with twin leading shoes when going backwards! I bet you can't lock the wheels.)

What the Minis really needed was a duo-servo drum brake setup like Holdens (and others) had. They kind of had twin leading shoes in both directions.

The reply from Minispeed UK;


The ones minispeed sell are solid now just have to save up to afford the £76.21 postage Thats more than a pair of drums

If all else fails perhaps you could try something like this:

It's on a Bugeye Sprite, but the same thing could be done to a Mini.
The outer surface of the drums were machined flat, then some alloy rings were machined up to be a very tight interference fit over the drum. The rings are then heated and pressed into place on the drum. They shrink as they cool and hold on tight acting as a heat sink for the brakes. There are cooling fins machined into the rings to disapate the heat and fresh air ducts directing air onto the brakes.
The difference in braking effeciency is amazing especially in competition events. Brake fade is now a thing of the past.

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Curly
'64 Cooper 'S' (Group Nb spec)
'67 Mini Marcos GT www.mm7056.wordpress.com

Hmmm , that looks tempting , will have to check how much room there is between the drum and wheel . Thank's for the pic .

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