erevo mmm hvmaxx 4.5 vids and ?s

ok here is what i am running

mmm - rx pack backfeeding the esc. so it works
4s
12/68
hvmaxx 4.5 motor
erevo
default settings except for 13.2v lvc

batterys 105*
mmm , fan was coming on and off when ran hard
motor 130* at the heatsink


any thoughts on temps?

can i go up to a 13 tooth gear?














not a 1515 1y , but it should be good on the track