got two master cylinders to apply in my Locost, the typical 0.750" and 0.625". some doubts: some people say the front one is .75, others say that larger cylinder is for the rear.
someone can tell me the right choice?

I would think small one to the front as the law of hydraulics goes.Not as much movement to calliper piston but greater pressure

small to front.

Do a search -- normally unless you are running 8" drums on the rear small to the front

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Originally posted by britishtrident
Do a search -- normally unless you are running 8" drums on the rear small to the front

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Originally posted by xico_ze54

quote:

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Originally posted by britishtrident
Do a search -- normally unless you are running 8" drums on the rear small to the front

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In fact my rear drums are Ø200mm (almost 8" ) from old Toyota Corolla 1200 and front traditional Cortina callipers.

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quote:

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Originally posted by britishtrident

quote:

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Originally posted by xico_ze54

quote:

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Originally posted by britishtrident
Do a search -- normally unless you are running 8" drums on the rear small to the front

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In fact my rear drums are Ø200mm (almost 8" ) from old Toyota Corolla 1200 and front traditional Cortina callipers.

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Then balance bar pedal box won't do much good, but as you already have one to make it work the the balance bar somewhere near the centre I suspect you would be best to use 2 equal sized cylinders.

With small diameter drum brakes increasing the line pressure only works up to a point after which the mechanical stiffness of the drums and brakes shoes limmits the braking torque the drum brake will produce.

[Edited on 14/4/06 by britishtrident]

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