my UE SuperMaxx

[ClodMaxx]

lol - never was good with math. thanks lincpinp.

wow, now that really is a lot of different configurations!

[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.

[lincpimp]

You can try lowering the timing to lowest, may help with the temps. I would put a small fan on the MM if I were you, it helps alot with the temps. The little novak fans work well, just space it off the heatsink about 1/4" for better flow. This will most likely drop temps about 15-20f. If you want a better fan-less solution send your MM to artur(griffinru) to do his stage 1 mod. It will run soooo much cooler than stock. Check my threads for more info, it is under modded mamba max testing.

[ClodMaxx]

cool. i just sent artur a PM.

i'll run some tests (with heat gun and GPS) with the 5s2p setup after today...hopefully it stops raining too. i have an old novak fan in my toolbox that i may attach as well, and i'll make the timing change. if it's still too hot to run consistently, i'll send my MM to artur for stage 1.

has he sent your 'injured' modded MM back?

[ClodMaxx]

update:

new basher body. it's a discontinued Pro-Line Baja body (revo3.3 size) that they only had out for a short period, and then they pulled them from everywhere due to not having licensing agreements with VW.

it's not finished yet, but gives a good idea what it'll look like. i still plan to paint a true-fire body too, but this just gets me bashing with a lid. the ford body has to go...

i'll be testing 5s2p a123 packs today with the MM. i'll try to get video, but my digital video camera has been acting up lately.

[lincpimp]

Artur is on vacation till the 10th. He is supposed to see if he can fix my MM and if not he is going to use the brains for a new powerboard he may make.