You are using a motor that has .21nm per amp. Most motors used on these conversions are .15nm. Higher mn per amp rating will give you the edge when it comes to lower RPM and pack voltage, but it comes at a cost. I believe the motor you are using goes for twice the usual Motenergy motor that most folks use. They also typically start out with flooded lead acid for budget reasons. I noticed you went with lithium. I bet it had much to do with the higher amps you run at and Peukert's Law.
I would make a 60v pack recommendation where practical, otherwise no less than 48v and run with a 2 to 1 gear reduction with a reasonably sized prop, less than 10 inch diameter, preferably less than 8".
That's my opinion based on what's out there and putting together something cost effective.
Scott
Posted by: smasterson2@gmail.com
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