I noticed that our stock brakes still keep a bit of drag on the rotor when the brakes are fully disengaged. I was wondering if this was due to the floating caliper design or if it was something all brakes do regardless.

I'm wondering if solid multi-piston calipers allow the pads to keep away from the rotor until engagement. I was curious if these calipers somehow have an effect on power losses to the wheels by keeping the pads from contacting the rotor until engagement, unlike floating calipers which keep the pads in contact with the rotor at all times. I haven't checked out these type of calipers personally so I am unfamiliar with them.

Just wanted to know if any of you with some kind of multi-piston caliper like Spoon, Wilwood, or whatever noticed it put less drag on the rotor when you try to manually turn it. Just kind of something I was curious about, that's all.

 

regardless

Both caliper style similarly push the pads onto the surface of the rotors via pistons, but there is nothing "grabbing" and pulling it back. There's a retainer clip, but all that does is keep the pads from moving around, making knocking noises.

The difference of whatever "parasitic drag" was present on my oem vs. spoon calipers, is absolutely marginal at best. Like a difference of 1 horsepower on a 3ton vehicle.