Really looks to me like that baffling is restricting the airflow too much. Instead of using baffles to cool the motor, have you considered adding more airflow by opening a couple small cheek holes if there is strength enough in the nose. From the picture it almost looks like there are marks for a cutout just along side the front of the motor already. And, of course, I hope you'll let us all know how you work it out either way.


Joe