Not Ranked
I beg to differ on air ducts;
Mike
You are correct that both sides of the rotor should receive cooling air equally. But unless you are using solid rotors, you NEED to duct the air to the CENTER. Assuming the rotor was assembled on the correct side, the vanes act as a directional fan, moving air thru the rotor and out the outer edge. Equal cooling is the reason rotors are vented. Don't forget that the hot air has to have a place to go also, the reason wheels have vent holes. Air flow past the wheel and wheel rotation create a low pressure area in the center, pulling air (and brake dust) out.
Don
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