Originally Posted by MrMention
The stock setup is fine, it just feels a little under powered. I tried the stock system on 4S and it flew better but the motor came down hot. With the new motor I can fly on 3s or 4S using the stock prop, and because the new motor is 870kv vs stock 850, I should get a little extra boost on 3S. With the stock system on a 4S 3000 mah battery, it handled the weight really well and I'm still able to land without power
Yes correct, swinging that 3-Blade helps if you have a lower Kv of 850 as it has more torque Kt. I am sure if you change out the propeller to a 2-Blade with say a 10 inch with 7-pitch, it will perform a little more lively on 3-Cells.
(Assuming 25C Discharge, minimum).
Should you still want to keep the Stock Motor and use 4-Cells, I would use nothing over 9-inch diameter and a 7 pitch and watch it zoom!