why twin piston caliper?

[ybw]

Hi there, any one know the advantage for changing to twin piston calipers for a ae111, as for my assignment.


Help are very Appreciate !!

[rollaholic]

greater surface area for the brake fluid to act against

possibly slight advantages in terms of dispersing heat also

[l1ttle_d3vil]

in short; better braking abilities.

[rollaholic]

speaking of better braking abilities, did you get the brakes sorted on your new car?

and when are we going to see some pictures

[l1ttle_d3vil]

chucked a ke30 proportionary valve in and it done nothing at all, the valve may have been stuffed though so i'll see what happens with a ke20 one instead.

only picture around at the moment is the one in my signature will wait until its running 200kw and back on the road before I show off haha

[KinLoud]

Twin pot calipers... main reason for more than 1 piston in a caliper is to distribute the force onto the brake pad more evenly.
Under heavy braking the brake pads can wear unevenly on a single pot due to the pads rocking slightly in the caliper.
High performance brake calipers can have up to 8 pistons, you will see that the pistons can be much smaller at one end compared with the other end.
This is so there is less force on the end of the pads that touches the disk after is has been heated by the rest of the brake pad. Hot brake pad will wear faster than a cooler one.


Ken
Ham
021 408 863

[glenb20V]

on a track, there tends to be more left than right or more right than left bends, in NZ anyway. E.g. Taupo, more heavy breaking into left hand turns, therefore the right front gets loaded up more. this tends to put more cornering force onto the right front wheel which flexs the hub slightly and wears the pads unevenly on a sliding caliper and floating disk. which means then you can't throw the pads into the other side and expect a good pedel ever again on those pads. the main advantage of four pot calipers is making the braking force even throughout the pad, therefore lasting longer and consistentcy, but this is limited with a floating disk.

On a road car, I reckon standard is fine just use good pads. racing, spend the dollars on pads initially and throw them away when they get uneven, otherwise spend the big bucks and buy some four potters

[Lloyd]

Just for overkill, 12 pots:

[neo]

It depends if you mean opposed 2 pot (rx7 callipers) or 2 pot on one side like corollas (super strut) have.

The main aim is more surface area but the rx7 variety is to apply the pressure more evenly to both sides of the rotor / pads.