[alfa] re: Milano Brake Master Cylinder replacement?

[Joe Elliott <jee@xxxxxxxxxxxxxx>]

I don't know about the 164 part, but the only problem that a bigger 
MC would cause with stock calipers would be increased pedal effort, 
which you probably wouldn't mind if it's not extreme.  Right now you 
probably have to apply ~30lbs. of force to the pedals to lock the 
wheels.  I believe the stock master cylinder has a 22mm bore, giving 
an area of 3.8 square centimeters.  The increase in required pedal 
effort will be proportional to the increase in cross-sectional area 
of the bore of the larger master cylinder.  The pis and twos actually 
cancel out and you can divide the square of the bore diameter of the 
larger cylinder by the square of the bore diameter of the smaller 
cylinder, and the result will be the factor by which the pedal effort 
will be increased (until you fit larger calipers).

Hope that helps,
Joe

At 5:46 PM +0000 1/23/04, alfa-digest wrote:

> Date: Fri, 23 Jan 2004 11:41:08 EST
> From: RThefarm@domain.elided
> Subject: [alfa] Milano Brake Master Cylinder replacement?
>
> Here's another one for the group -          
>        I have ended up having to replace my clutch master cylinder on my
> project Milano - what a PITA!  Well since I have that pedal box out - I was
> thinking about other modifications that I might want to make in that area.  I
> remember hearing that if you want to run bigger brake callipers it 
> is nessicary to
> run a bigger brake master cylinder and that one from a 164 will bolt right up
> and provide the necesary increased volume.  My first question is, has anyone
> done this and is it true that it will bolt right up?  My secound 
> question is: I
> have not yet changed the brake calipers from stock and probably will not do so
> for awhile - will the bigger master cylinder cause problems with my stock
> brake calipers?
>
> Thanks for any help with this question!
>
> Chris Rundlett
> 1982 Spider Veloce
> 1987 Milano Project
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided