Originally Posted by ShortCourseOnly

What pinion are you running? I started with a 12t/62t and it was not very good. Once I moved up to 13t and then 14t it was much better. Temps were just fine for me. In fact on a big 8th scale track I was cooler with the 14t. Am thinking of going to 15t to see if the temps are OK for 10 minutes. I am running two Reedy 4000mAH 65c Shorty batteries is parallel with great success.

I love the Ballistic 4.5t with Novak Havoc Pro-SC X-Drive in my SC10 4x4.