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CC vs MM.....Real world brake tests.....

     Regarding the thread titled "Cool Carbons are RACING BRAKE PADS 
     Metalmasters are STREET BRAKE PADS":  I have used cool carbons in my 
     modified 93 325is with great success on the track and the street.  
     They lasted for a total of 7 track days @ Bridgehampton and 12,000 
     miles of street driving (they do squeal under light pressure when cold 
     so I just brake later and harder on the street).  I had no problems 
     with the rotors but I did boil the brakes twice which forced a change 
     to super blue brake fluid and braided brake lines.  THe stopping power 
     of the Cool Carbons are remarkable.  I changed over to Repco 
     Metalmaster pads before a two day track event at Watkins Glen on 7/10 
     and 11 with dismal results.  The brakes lasted the full two days at 
     the Glen (admittedly a tough track on brakes), barely, but were 
     completely beatup.  When I took the pads off (there was a grinding 
     noise coming from the front) the pads were literally coming apart (you 
     could break big chunks off with your finger) and the rotors were 
     scorched and blued badly (no warping though).  New pads didn't help 
     and I think I will have to change the rotors.  I think the cool 
     carbons are a better choice if  you are going to run any track 
     sessions with your car, the metalmasters are not up to task.