Noobish ESC load question...

[suicideneil]

Shouldnt do.

If you just bump up the voltage from 3s to 5s without changing the gearing, the esc will run hotter like Brian said. If you set the gearing for 5s, then went down to 3s without re-adjusting it, the esc should run cooler due to a much reduced load.

[VintageMA]

Did you gear the car to be what you want at 5S? Then at 3S it will be about 60% the speed - but potentially still pretty fast as that put that motor (which is pretty high kv) around ~25k rpm.

Only thing I could think is that with high gearing trying it with 3S (if it was gearing for say 35+ on 3S) and with all the AL/Ti you have on it - it may be very heavy and a really strong load to push with 3S and Amps may have been through the roof.

I've never had a Quark personally, but seems almost everyone has had heat issues without modding it with more heat sinks.

Also - never really read much about how hard the Neu motors are on a Quark or if they even run that well.

I say if you are running comfortable temps on the MMM with 5S you should be good to go. Like the guys said - gear it for 5S and then 3S should be much easier on everything.