Originally Posted by quorneng
Did you just change the motor or other things as well?
With all things equal a 1000Kv motor will turn slower than a 1650 one so it should have given a lower performance (and take less current) unless your previous motor was seriously over loaded.
Each motor has a maximum rated current. The prop diam and pitch has to be selected to keep within that figure.
Quorneng you want to sit there an tell me my E-Flight Power 60 is not going make my UMX Extra 300 fly better
. The 1650 was most likely over propped and the lower kv motor hit the props sweet spot. I did stuff like this before I broke down and bought a wattmeter.