I got Rotora 4 pot brakes in front and rear ionstalled on my Z4 M coupe and they work great. I am still running the stock size rotors 345x28 in front and 328x20 in the rear.
I will get 2 peice rotors to save weight when these wear out, but for now these work great. I just ran at Auto Club Speedway and my previous best time was a 1.58 this time out I ran a 1.54!
Here is the video of two laps one a 1.55 and the other a 1.54
Here is a graph comparing the braking of the stock brakes versus the Rotora's:
The Blue lines are stock and the red and black are the Rotora's. The first peak is turn 3 and you can see the red line starts a little later than the blue so i was able to wait longer, but the kicker is i was going about 10 mph faster than before when the blue line was recorded. Over 2 seconds was due to the brakes alone, the other was a slight alignment adjustmemt amd more balls on the banking.
I was able to go from stock 1.19 braking g's to 1.36 g's with the Rotora's.
I will take a picture later but I got them in red.
I will get 2 peice rotors to save weight when these wear out, but for now these work great. I just ran at Auto Club Speedway and my previous best time was a 1.58 this time out I ran a 1.54!
Here is the video of two laps one a 1.55 and the other a 1.54
Here is a graph comparing the braking of the stock brakes versus the Rotora's:
The Blue lines are stock and the red and black are the Rotora's. The first peak is turn 3 and you can see the red line starts a little later than the blue so i was able to wait longer, but the kicker is i was going about 10 mph faster than before when the blue line was recorded. Over 2 seconds was due to the brakes alone, the other was a slight alignment adjustmemt amd more balls on the banking.
I was able to go from stock 1.19 braking g's to 1.36 g's with the Rotora's.
I will take a picture later but I got them in red.