David VS. Goliath!!

[starscream]

Cool, it looks like I was correct without looking at the graphs. 8s or 9s would be closer to the sweet spot (higher efficiency). Higher voltage being 7s to 9s and geared lowered (such as 10/51). I think it is very clear what lower kv motors are capable of. My point of clarification is where the sweet spot is. It seems that the sweet spot is toward the upper limit of the efficiency range (which requires lower gearing which is relative to the application). If these graphs are any indication of the efficiency range of this motor it seems that it is around 22 to 33volts (33 volts being closer to the sweet spot).
I would still like to see what numbers Promod would get from his 2240/10 on 8s or 9s with 10/51 gearing. Thats the only way to know for sure :D