Had anyone replaced the front PCCB rotors to steel and left the rear Ceramics rotors?

 

Had anyone replaced the front PCCB rotors to steel and left the rear ceramic rotors?

 

have been using PCCB with stock pad and track a lot and hard, no fade issue ever. Do i like the friction level and feed back & control of the stock PCCB, No. the only thing i like is it will never fade.
For the rear pad, i use it down to 20% level, no problem & no taper issue. Front pad last longer than rear pad, but front tends to taper. I have been rotating the pad left to right to maintian the taper issue. if the front will not taper, it should last very long. Stock pad life is good with track use in my opinion (if ignore the taper issue).

 

Most guys that have the PCCB tend to change them due to the high cost of the rotors when they need replacing. $5 grand a corner is a lot to pay out when they are worn out. Hence the change to steel.

 

I have used the stock pads on 2010 GT3 with PCCB, covered 17,000 miles 1/3 of which were on the track and the rest driving back and forth from the track. No issues except for the first set the bottom of the fronts were wearing more and the wear sensor tripped on the 10th day (track days). When I looked at them the top were at the 50% mark when the bottom was only 2 mm left. Fresh pads have about 10-11 mm depth. I now flip them top/bottom after 5 days at the track and usually get 10 track days use (wear is about 30% by that time) per set. The rears wear faster depending on your driving. If you invoke traction control and PSM a lot then it is normal for the rears to wear faster than the fronts. The crucial thing to keep the rotors from being damaged is to religiously clear the holes (with chopsticks or wooden BBQ skewers sticks or best with compress air jet 2-ft long blow gun ) so there is optimum cooling. Also you should change the fluid every year (beginning of track season) I use Motul 600 (3L flushed through system including clutch). On my 4th sets of pads with 2 days of track use logged last year. Also be careful when changing rear pads not to strip the threads on the calipers (torque to 60 lb-ft) or you will have to put in thread inserts.