I have a question around bore sizing a brake master. I'm mounting dual brake masters, what's the rule of thumb to detemine what bore size is most appropriate?
Thanks for any insight,
Julian
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Joules,
I contacted Wilwood and after going thru the entire set up they suggested a 3/4 for the clutch, 7/8 for the front and 1" for the rears. I also installed there pedal set up.
Ron
I contacted Wilwood and after going thru the entire set up they suggested a 3/4 for the clutch, 7/8 for the front and 1" for the rears. I also installed there pedal set up.
Ron
Julian, its going to make a difference whether you plan to use a power booster or not with your dual-master/balance bar setup. Human beings usually can't push a 1" brake master cylinder without boost.
I ran into this when I built my MGB. My MGB has a GM 3.4l V6 and little on the car is stock. I converted the rear to disk and put larger dic brakes ont he front. I basically started from scratch.
I built an excel spreadsheet which started at pedal ratios, cyl throw, volume, brake pad coeficient, brakine pad radius, tire radius, etc. It was a lengthy spreadsheet.
From there I chose a master cyl. I wanted to be close because it was non boosted. It had to be close. I also used this to help balance the correct calipar size front and back.
I really did not know how well it would work till I tried it. Over 3 years and 3,000 miles I think I nailed not only brake pedal ratio, pressure but also balance front to back.
I built an excel spreadsheet which started at pedal ratios, cyl throw, volume, brake pad coeficient, brakine pad radius, tire radius, etc. It was a lengthy spreadsheet.
From there I chose a master cyl. I wanted to be close because it was non boosted. It had to be close. I also used this to help balance the correct calipar size front and back.
I really did not know how well it would work till I tried it. Over 3 years and 3,000 miles I think I nailed not only brake pedal ratio, pressure but also balance front to back.
" brake pedal ratio, pressure but also balance front to back."
I went with the Wilwood Engineers recommendation based on all my Willwood components .. pedal set up for 3 seperate masters, calipers, rotors, line sizes etc. The adjustable pedal ratio and balance bar ... not sure this could be done correctly with the stock Pedals .. unless your altering them ?
Ron
I went with the Wilwood Engineers recommendation based on all my Willwood components .. pedal set up for 3 seperate masters, calipers, rotors, line sizes etc. The adjustable pedal ratio and balance bar ... not sure this could be done correctly with the stock Pedals .. unless your altering them ?
Ron