[neallewis]

Originally Posted by andrewc

Neal

Tried the timing on 0 in practice and was far worse temp wise...but could have been gearing too low for that one run? All data as above.

Ayske1

The temps I've quoted are motor not ESC; the ESC temp (around 60c at end of run) seems ok to me?) Running speedo with fan.

Sure. stick with the standard (as shipped) motor timing then. by he sounds of it its doesn't like that. the Gforce (and Toro) progbox can run a test to check the exact set motor timing.

Sounds like your cells are ok then if new, they should be.

Ok, like the Toro that I use the progbox will read the motor temp from the sensor board. Remember its not the motor can surface temp. Use a infrared temp gun to test that. I'd set the cut out to 125degC or disable it. It looks like you are just hitting the cut out temp, a fan should help reduce it.

The gearing (with 18-19 pinion) is right, try a fan and also use one of these mounts:
http://www.rccarshop.co.uk/electrics...or-fan-mount-p

http://www.rccarshop.co.uk/electrics...-mount-black-p

I used to use one with a 30mm fan on my bmax4iii when it was hot. fits fine in shorty or saddle mode.

Good luck sorting it out.