Do calipers with more pistons require more effort from your foot?
05 February 2004, 05:41 PM
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Do calipers with more pistons require more effort from your foot?
Alrighty, I've got (awful) single piston calipers on my MY98.
I get why more pistons gives a better spread of force over the caliper etc and also how the foot effort is multiplied up by the pedal length, servo, and piston sizes... (I think)
However, if I were to replace the 1-pot calipers with 2, 4, 6 (or even 10) pot jobbies, would the total cross-sectional area of the caliper pistons increase, compared to the master cylinder piston, and therefore require greater braking effort from my poor foot?
If so, is it noticable? If not, why?
I get why more pistons gives a better spread of force over the caliper etc and also how the foot effort is multiplied up by the pedal length, servo, and piston sizes... (I think)
However, if I were to replace the 1-pot calipers with 2, 4, 6 (or even 10) pot jobbies, would the total cross-sectional area of the caliper pistons increase, compared to the master cylinder piston, and therefore require greater braking effort from my poor foot?
If so, is it noticable? If not, why?
05 February 2004, 06:16 PM
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Each piston on a four pot or six pot caliper is smaller than the single pot. This means total area of the piston(s) is arranged to be the same as standard so pedal pressure and travel is the same. Also means ABS still works the same.
07 February 2004, 01:43 AM
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Nope - wont make any difference to your dear little tootsies!
What you may notice - is with the vast improvenment in the brakes, your pedal "should" have a much firmer feel to it, and may be less spongy and more like what a brake pedal should be. Small amount of travel, and then firmness coming in with braking being applied.
Dxx
What you may notice - is with the vast improvenment in the brakes, your pedal "should" have a much firmer feel to it, and may be less spongy and more like what a brake pedal should be. Small amount of travel, and then firmness coming in with braking being applied.
Dxx
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