Is 4S+3S in serie possible?

[transtalon]

No it's not coming out of the motor but your ESC will burst into flames. I was running a 5S setup with that motor with 30 pinion and 63 spur on a heavy extended Lst2 17 lbs everything was okay but with a 6S after 5 min of driving it and the temps were below 100 deg motor and esc. It just started smoking and it started to go on flames 3 times with the same setup so pls don't try to do it if you're not prepare as you will loose the entire truck if your not fast. I kill the fire in about 10 sec and first pull out the batts before anything else. Just giving you a warning, as this is no joke. I will run it on a good 5S batts. The motor is very powerful but very amp hungry with higher rpms. Goodluck.