Question about NM"S of torque and voltage/ amperage

[rumme]

My bafang geared hub motor claims to have 80 NMs of torque @ 750 watts- 48 volts.

If I double the watts to 1500 @ 48 volts, does the torque rating increase in a linear fashion to 160 Nms of torque ?

 

[rumme]

On another note, I'm experimenting with cooling my Bafang geared motor via the ATF internal route and adding 4 heat sink fins to the outside using thermal glue. This motor is rated 750 watts at 48 volts, and I'm pumping up to 2300 watts into it for short periods of time.

Heres a few photos.

 

[amberwolf]

You can go to the http://ebikes.ca/simulator and experiment with various motors there (even if yours is not listed) to see the effects of changing various things; this will answer your original question.