mamba max says on the side:
2~3S lipo
6~12 cells NI-MH
does this mean i could run 12 NI-MH's without seperate BEC?
thank you.

You might be able to. It also depends on the servo load. If you are running one lower power/speed servo, you should be ok.

However, I always recommend a UBEC over 3s or 8 cells. The ESC will just heat up more because of the BEC and that's the last thing you need. Think of it this way, running 4s on the built-in BEC with a 1A load will force the ESC to dissipate over 9 watts. That's really a lot.

ok, thank brian.
i will be running servo's of the digital kind with 8kg of torque or even better.
so i'll need the bec then.
i tested a motor of my truck(stocker) and on 7.2volt it only did 15k rpm.
so i'll be runnig 4s lipo or or 12 cells NI-MH anyway.
then it will do about 40~45kph.
thats good for me.

Your ESC will thank you. ESC temps will be lower too and that's a good thing! :027:

well something's off.
maybe its the bec.
the steering suddenly lost lots of torque.
my servo was a little warm.
will try other servo tomorrow.
will see then. hope its not the MM.

Sounds like the servo isn't getting the power it needs. The built-in BEC in most ESCs are linear ICs. They usually have some type of thermal and overload cut-off to pretect themselves. Measure the voltage on the BEC (use a servo Y adaptor) while working the servo and see what the voltage looks like. It could be driving the BEC into overload (from the hi-power servo) and cutting back the voltage.

could all this start all of the sudden?

I suppose it's possible. The internal BEC is supposed to have protection, but if it was pushed too far too often/long, it might be permanently damaged, which would explain the suddenness. Again, measure the voltage while the servo is moving and see what the voltage does.

will do, but dont have a y-wire here.:mad:1

Well, if you have an extra servo connector and wire, plug it into an unused receiver port and measure it there. The output voltage on the receiver will be the same on all ports...

didnt think of that, thanks brianG.

well after a test today it seems that both MM's BEC and my servo are okay.
dont know what that was yesterday.
but anyway, i'll get a stronger servo and seperate BEC anyhow.
edit:
goddarn it doesnt work anyway.:mad:1

as prices of brushed motors are steep(i mean high-end motors), its like 200~300€.
i will go brushless.
i was wondering, would BK warrior 120/20, BK wanderer 6XL, and 2x in serie 2S orion 3200 lipo work in my twin force.
would the motor clamp fit in my twin force?
i have used brian calculator and it tells me my truck would do 30mph with 6inch tires and stock gearing, would that work ok?
thank you.
;)

bump;)

will the BK wanderer need the clamp, cuz i looked at the truck and at the pics of the clamp and it wont fit.:035:

What about a c can motor?

this one?
http://www.rc-monster.com/proddetail...540C_XL&cat=20

bump, anyone?

wont fit.:002: