I was wondering what it takes to really crank up rpms on a rotary...light rotros seem like they might go a long ways towards reducing rpm induced strain on the motor...but where could I find some for my '79 12A? Do I need to switch over to a 13B to really try for high rpm's?

One last question, does anyone out there do aftermarket rotors? And what can be done to reduce weigh on my current rotors?

thanks...

 

I seem to recall that Racing Beat would mill stock rotors to make them lighter.