AP Racing Master Cylinder Help
05-05-2014, 05:49 PM
#1
AP Racing Master Cylinder Help
I need help on which size bore I need on my car?
How does it work? The smaller the bore the less fluid is pumped? So the bigger the bore the more fluid is pumped?
Im a newbie when it comes to the braking system
Billy
How does it work? The smaller the bore the less fluid is pumped? So the bigger the bore the more fluid is pumped?
Im a newbie when it comes to the braking system
Billy
05-05-2014, 08:07 PM
#3
Ideally to stop the car when I push the middle Pedal
Jokes aside, I'm going to make my own pedal box system because I have a serious lack of space to use a standard size servo etc
So need to find out what size bores to use etc as I dont want to get balls deep only to find that I have the wrong Master Cylinders
Billy
08-05-2014, 07:02 PM
#5
Too many posts.. I need a life!!
Smaller bore means less force acting on the pedal, because P=F/A. P should be constant, so smaller A means smaller F to keep P the same. Thats why a smaller bore master cylinder gives you a lighter pedal and longer travel than a large one.
A smaller bore cylinder have less volume which means you need to push the piston further to move the same amount of fluid as a larger one.
A smaller bore cylinder have less volume which means you need to push the piston further to move the same amount of fluid as a larger one.
08-05-2014, 07:04 PM
#6
Smaller bore means less force acting on the pedal, because P=F/A. P should be constant, so smaller A means smaller F to keep P the same. Thats why a smaller bore master cylinder gives you a lighter pedal and longer travel than a large one.
A smaller bore cylinder have less volume which means you need to push the piston further to move the same amount of fluid as a larger one.
A smaller bore cylinder have less volume which means you need to push the piston further to move the same amount of fluid as a larger one.
Ok I follow you I think, so would I use a smaller bore for the fronts and a larger bore for the rear?
Billy
08-05-2014, 07:19 PM
#7
Too many posts.. I need a life!!
That depends on your caliper pistons (slaves). You should most likely use two equally sized mcs and then its only a matter of adjusting the brake bias (a lever which controls the stroke distribution).
The only reason for using a bigger mc is when your stroke is limited or if you experience very long pedal travel, mainly due to additional pistons on large brake setups.
The only reason for using a bigger mc is when your stroke is limited or if you experience very long pedal travel, mainly due to additional pistons on large brake setups.
Last edited by nixon_2wd; 08-05-2014 at 07:22 PM.
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