ESC in flames

[brushlessboy16]

Hmm, cold solder joint? Check your motor and make sure the wires leading into it arent stripped and shorting on the can.

Ok, just checked the motor wires and they're fine. Could a cold solder joint on the 5s lipo cause this? It's the only new part in a setup that I've used before with no problems.

[riverat1540]

my guess is the high amp spike as well. my muggy just blew a mmm3 on 6s running the 2200kv neu 1515/1y tying to pull wheelies at high speed. that draws alot of amps with the heavy losi's when u push them hard under alot of voltage. but with your gearing im not sure, i was geared for about 50 when i had my problem on 6s. motor and battery temps were also fine when it flames up.

[lutach]

Georges told me for the car ESC he was going to make some changes specially with the PCB. I did some tests with the 6S 120A and had to add a bigger heat sink and a fan.