Greetings, I know that theres a forumla for calculating brake master size when you have the piston sizes of the calipers

anyone know what it is?

and also the piston sizes of sierra rear calipers?

I am only braking the rears with this master, so Im guesstimating that somethign like 0.625 or 15/16mm would be about right??

however my MSVA tester wont really be happy with guesstimates, and I cant afford to be buying things twice

Everything you need to know about brakes?

flipping eck, information overload, might go have a cup of coffee before reading that LOL

thanks, some very good information there.

Blimey! That has to be the best brake info I have seen! I was going to say that I have an Excel spreadsheet which is quite handy for brake calculation. If you U2U me your email addy I will ping it to you.

Never mind - I found a link

http://www.main.experiencetherave.com:8080/subaru/techinfo/brakemath.xls

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Originally posted by minitici
Everything you need to know about brakes?

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Such as?