hey guys, i've got an ft t4 that i used to race with. i've got a gtb 5.5 in it now, but want more speed. i'll mostly bash the truck now with a small amount of track time. i've been reading about the lehner 1920's and was wondering if a 1920/8 or 9 running 2s lipo would be to hot. any suggestions on a speed control? thanks, carl.