s3 motor with s4, s5 rotors?
 

i understand the s3 13b makes about 135 hp, and the s4, and s5 make more (up to 160 i think).

is this only because of the difference in rotor design?

im wondering if i could put s4, or s5 rotors in my s3 (gsl-se) motor when i rebuild it

nick