Kozo4680

iTrader: (27)

I am having trouble with my hobbywing xerun120 amp. It is the v2. I am running it in my b4 with an lrp x-12 8.5 and I cannot get the esc to run cool after 6 minutes. It doesn't thermal but it comes off 160 degrees. I have the super capacitor as well.

I have thrown many diff gear combos at it and I still can't get it to cool down.
21/81
22/78
20/78
27/78 (lol) I read that an under geared car will cause hot esc temps.

I run nothing but 50c or higher top end batteries from, new, to slightly used, to old and puffy, still not luck.

I also experienced the same thing with my speed passion this weekend, it was 95 degrees outside and i dropped 2 - 3 teeth and it thermalled in 3 minutes also running an 8.5 in a kyosho sc-r.

Any body that can help with gearing and temps would be great.

TCarlson777

iTrader: (18)

Are you using the heat sink and fan?

TCarlson777

iTrader: (18)

Also, are you running any boost or timing? Try setting boost and turbo to 0. Also, have you changed the endbell timing on your motor? Also, have you run 23 / 78 on your B4?

mulepic

iTrader: (21)

Take the pinion off the motor and ensure the car rolls freely.

thecman26

iTrader: (112)

How is your motor temps?
If they are low, your overworking your esc, gear it up!

hanzo3

iTrader: (55)

Is this the 45a justock version?

RatsacK

iTrader: (21)

I swear some people don't even bother reading the title or OP.