Aren't you doing this very inefficiently though,think about it you could have just got a lighter flywheel and had more of an effect. Also by removing material from the rotors you actually make them weaker, maybe not significantly but still weaker.

 

Have you done any research on what an auto x and a road race car setup is? A stock flywheel is not what you want. you want to be in powerband all time. You should look at my car. But im still whating on pics of the rotors. It might be a good idea to talk to Dave lemon ( Mazdatrixs ) or Jim tanner at Racingbeat. They are a good source. Sense you are in Florida talk to Carlos Lopez at CLR.
Thanks Robert