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Front or Rear M/Cylinder?
kendo - 16/2/09 at 09:18 PM

I've got twin wilwood master cylinders which I purchased fron Stuart taylor ages ago. My brain is fading and so can't remember which is which.

One has a 0.625 bore and the other is 0.75. The question is: which one for the front and which is the rear?

Thanks


eddie99 - 16/2/09 at 09:24 PM

i did 0.625 front and 0.7 rear when i put them in earlier


blakep82 - 16/2/09 at 09:39 PM

you'd normally have the bigger cylinder on the front, smaller on the rear


kendo - 16/2/09 at 10:04 PM

quote:
Originally posted by blakep82
you'd normally have the bigger cylinder on the front, smaller on the rear


That's what I thought but had this nagging doubt about the smaller bore giving a higher pressure for the same pedal effort. Just a bit confused.


MkII - 16/2/09 at 10:43 PM

your right . smaller cylinder wil give higher pressure with same pedal effort. m.


nitram38 - 17/2/09 at 05:39 AM

Depends on the volume of your slave cylinders and are you using a brake bias?
I have used .625 on the fronts and 0.75 rear and that worked for sva.


daviep - 17/2/09 at 08:33 AM

Nearly always smaller bore to the front in my experience


kendo - 17/2/09 at 10:17 AM

Thanks chaps

I am using a bias bar. Given the difference in cylinder size do I set them evenly and let the cylinders do the work?

As far as the brakes go they are standard cortina calipers up front and standard 9" cortina rear drums.