Caliper importance.....?#of piston, piston size, pad surface area?
Caliper importance.....?#of piston, piston size, pad surface area?
I know that when it comes to brake everything work together and it's not just 1 thing.
But I wanted to know what would be more important or have more significant impact in terms of calipers...
a) amount of piston
b) piston size
c) amount of pad surface
Open to thoughts & any insight
Thanks
Charlie Moua
But I wanted to know what would be more important or have more significant impact in terms of calipers...
a) amount of piston
b) piston size
c) amount of pad surface
Open to thoughts & any insight
Thanks
Charlie Moua
Re: Caliper importance.....?#of piston, piston size, pad surface area?
While I'm not an expert by any means,
The surface of the pad in contact with the rotor and the force behind it are what is most important. The force for hydraulic cylinders is just PSI, so two smaller pistons or one larger piston could accomplish the same amount of force on the pad, however I would think the distribution of force with two smaller pistons would be better.
The surface of the pad in contact with the rotor and the force behind it are what is most important. The force for hydraulic cylinders is just PSI, so two smaller pistons or one larger piston could accomplish the same amount of force on the pad, however I would think the distribution of force with two smaller pistons would be better.
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From: houston
Re: Caliper importance.....?#of piston, piston size, pad surface area?
some things straight from my head i only just now made up (i like little thought exercises) :
it is about the distribution of heat. imo the piston is the least important. it is the pad area and it's designed operating range. which would include it's expected pressure against the material, ie, rotor.
on the piston(s), i believe they are whatever is needed to suit the pad/rotor size arrangement and their expected performance.
but that makes me thing of double sided calipers. like 4 piston monsters. a properly working caliper and sliding pins with apply equal pressure to both sides. so why the pistons on both sides? does that give actually more pressure? or is it simply a faster engagement?
it is about the distribution of heat. imo the piston is the least important. it is the pad area and it's designed operating range. which would include it's expected pressure against the material, ie, rotor.
on the piston(s), i believe they are whatever is needed to suit the pad/rotor size arrangement and their expected performance.
but that makes me thing of double sided calipers. like 4 piston monsters. a properly working caliper and sliding pins with apply equal pressure to both sides. so why the pistons on both sides? does that give actually more pressure? or is it simply a faster engagement?
Honda-Tech Member
Joined: May 2007
Posts: 264
Likes: 0
From: Banbury, UK
Re: Caliper importance.....?#of piston, piston size, pad surface area?
Amount of pad surface doesnt really do much for performance, its more for material volume. In fact the smaller the pad surface area the more "bite" the brakes will have because the clampping force PSI goes up as the surface area goes down.
As far as the calipers go, what it really matters is piston area. You can get the same piston area in a 4 pot caliper than you can in a 6 or 8 or even those stupid 12+ piston calipers. And the advantage of running a 4 pot over a 6+ is that the caliper can be made shorted and therefore will fless less, the pads wont be as longer so there will be better release characteristics, and better brake modulation.
Regards
As far as the calipers go, what it really matters is piston area. You can get the same piston area in a 4 pot caliper than you can in a 6 or 8 or even those stupid 12+ piston calipers. And the advantage of running a 4 pot over a 6+ is that the caliper can be made shorted and therefore will fless less, the pads wont be as longer so there will be better release characteristics, and better brake modulation.
Regards
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