my UE SuperMaxx

[ClodMaxx]

dropped in my new a123 racing packs - 4s2p - for a couple bash sessions this weekend. the MM esc got hot - i'd do a few speed runs then bring it back to let it cool for a few minutes before running again. i didn't have my heat gun with me, but i knew it was hot.

a 13lb truck doing speed runs in short grass, 4s2p a123 packs, geared 51/15 at first. i figured the hot MM meant the motor was pulling too many amps, so i geared up to a 20t pinion to try and load it more. same thing. hot. i didn't thermal the MM, but i bet i was close.

speeds weren't what i was expecting - less, actually. according to the speed calc, i should be getting about 37mph on 4s2p. i didn't have a GPS attached, but i would guess it was in low, low 30's. there is no binding anywhere either. i will say that there really was constant power all the way through the run though! that alone is a huge step up from the matched 7 cell ni-mh packs i was running previously.

i have a pair of 3s1p packs coming today, so i'll run it at 5s2p and see how that works. the MM is completely stock - no fans, no mods to it. if i have to i'll run a fan, but i'm thinking i may just have to get a controller better suited to the weight of the truck and power of my LMT motor. then maybe i can try out 6s2p.

one quick question: i have the MM settings stock, except i have punch control at 60%. i know very little about the MM settings to help cool it - is there something i could change to lower the temps on this setup? it doesn't glitch at all, although it's not as smooth with a 20t pinion as it is with a 15t pinion.