Ok.
A few updates.
Went to a 14t pinion. The buggy is quite a bit faster on the top end but it heats up faster (this setup will require a fan). The controller gets warm also. Man I need a temp gun.

Swithed to 5,000 weight different oil. Put it in the front and center diff. Helps out ALOT to keep the front from unloading but could easily go to 7,000 in the front.

Under racing conditions the motor gets hot with the 13t pinion and 46t spur. I need to get a fan.

It was recommenend to me to get a 1950 but I dont want to spend that much.
Is there another option to get good speed (35 to 40) and keep the heat down on a 9 lb buggy on 4s??

Anyone got pictures and links to their fans??

Thanks