brushless problems

i hav a worrior 12020 and an bk xl8 :026: :026: :013: :013: :035: :035:
i have just put new esc in and pulled awheels off and put the truck up on blocks programed perfect . i started giving the truck abit of throttle and was running good i ran it for about 2 minets at half throttle then at full throttle then i notice than it was serging i stoped truck and checked every thing even the whole drive train every thing was smooth .so i then started again 3/4 throttle was ok but again full throttle was still serging so i tryed programing again . ran good un till i hit full throttle then i seen a little bit of white smoke followed by a pop the esc had done the same as the other one . i found this very strange how the truck was off the ground the motor was a bit hot but not to bad . do you think the motor mite be faullty and is causeing the esc to go . truck has not even run over five minets .i put my twin motors in with no problem . i will send esc and motor back . can you please have a look at them . i have checked every thing possible but there is nothing i can see that would cause this

[HotnCold]

You are saying that you had the wheels off it and gave it full throttle with no load. and then after a little while -you saw smoke ?

Sounds that way to me.

No load conditions can be very bad.

How many cells are you running?

It might have exceeded the rpm limit? What is the 12020's limit?

[coolhandcountry]

OH my. A brushless with no load. Full throttle to. This does not sound good.

[Serum]

Running a motor without a load is not a very good idea in the first place,

How many cells did you use and did you used the internal bec?

14 cells and bec. when i hit full throttle it would have been no more then 4 seconds just enough to notice a serg only did this twice i know you dont take it to full throttle any longer then a couple of seconds . i would not even think i toke it to 4 seconds but that is what i guessed the longest i would of done it .i only feathered throttle. but i understand what you are saying . iwould not do this to my real car .

[squeeforever]

why exactly where you doing this?