HI MIKE; FROM MY SIDE POINT ( INVOLVED WITH BRAKE MANUFACTURING) SIZE OF ROTOR OR CALIBER IS BASED ON 3-4 FACTORS. 1. TIRE CONTACT AREA 2. TIRE SIZE( ROTATING MASS)3. PRODUCTION MATERIAL OF ROTOR 4. EFFECTIVE PISTON PRESSURES OF THE CALAPER. IF YOU RUNNING SAY BAER ROTORS THER PUBLISHED BRAKEING DISTANCE ARE NOT THE MUCH BETTER THAN STOCK DISTANCES. WILWOOD HAS THE SAME PROBLEM BUT THE HAVE PISTON DRAG FOR HEAT DISTORTION. RED DEVIL BRAKES HAVE ABOUT 60% BETTER STOPPING DISTANCE WITH THEIR COATED ROTORS & PADS ALONE WITH STOCK CALIPERS. THE DIAMETERS ARE SMALLER AND LESS ROTATING MASS. I HAVE RED DEVIL ROTORS & PADS AND HAVE STOPPING DISTANCES OF 60-0 OF 88 FEET WITH STOCK CALIPERS AND MY CAR WEIGHT IS 4068 LBS. WITH A 2900 LB CAR I HAVE STOPPING DISTANCE OF 60-0 AT 69-72 FT SAME ARRANGEMENT OF CALIPERS. AFTER THE BRAKES GET HOT THE STOP EVEN BETTER, AND I HAVE NEVER HAD ANY WARP FROM HEAT. CHECK THE OUT ON THE WEB ..
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