Before winding a new stator I would try running the existing one into higher voltages until you then find the correct load speed.
From Ghurd's figures you are way better at 24v, I would also try 36 as I think it may do better. If it does then try 48 and if that is worse you have gone too far.
Then say it worked best at 36v you would use 1/3 of the existing turns. That way you have your result without more trial and possibly error.
Flux[ Parent ]