Kore...I was referring to a GM style single piston vs any say 4 piston,6piston etc type caliper. I may be wording this wrong but what I am getting at is there has to be some pressure required to actuate a single piston cyl before pressure is applied to the rotor? I am not talking cyl sizes. If you were to take two equal sized volume single vs multi piston calipers would there be a difference?
Theory is great but I have swapped wilwood 4 pistons onto a car that had GM singles and there was a difference. Was it piston bore size? Maybe?
Not arguing just looking for good info.
Thanks
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