Big Brake kit expert thoughts needed

[Bruno]

I think that the single piston floating caliper displace twice as much fluid as a fixed caliper:

My calculations should be:
Area 4 pot caliper piston x 4 = Area single piston caliper x 2

[rob101]

I think that the single piston floating caliper displace twice as much fluid as a fixed caliper:

My calculations should be:
Area 4 pot caliper piston x 4 = Area single piston caliper x 2

Actually bruno i am pretty sure that you're first calculations of about 30 mm diameter for each piston in the 4 pot were correct. there is no way that the braking force is multiplied by two for the single floating caliper, in theory it is applied half/half (of the piston force)on each side of the disc. as is the 4 pot (2 pots on each side is 1/2 of the total piston force). might want to look at the pad area as well. If you have a bigger pad you'll get more braking torque per piston force. if you get my drift.
I am not really following when you say "stock pedal height" do you mean the braking feel in general as in pedal position vs. braking force

[Bruno]

Actually bruno i am pretty sure that you're first calculations of about 30 mm diameter for each piston in the 4 pot were correct. there is no way that the braking force is multiplied by two for the single floating caliper, in theory it is applied half/half (of the piston force)on each side of the disc. as is the 4 pot (2 pots on each side is 1/2 of the total piston force). might want to look at the pad area as well. If you have a bigger pad you'll get more braking torque per piston force. if you get my drift.
I am not really following when you say "stock pedal height" do you mean the braking feel in general as in pedal position vs. braking force

I am mainly looking at fluid displacement now, to see if we can keep the same pedal height. Once I can keep a similar pedal height then I will keepd calculating brakine forces.

Right now, I need some rims... So the big rotor can fit under.