I am running 30% and getting temps of 220-240...and staying very consistant, and holding its tune well. In order to run the 30% properly I added a head shim to the motor. Im not sure the exact size if head shim I used....it was one thin copper colored Novarossi head shim.


I believe Claudacio helped me out with some questions I had about the shimming of this motor for 30% a while back, he may know more. Claudacio....?

One thing is for sure though, this motor is a monster! If you put it into a buggy I am curious to see what happens!