YPC

Hi Curls.....

The lower kv motor will greatly 'increase' the actual power/torque output ... allowing you to be able to have easier options..
Running a 750 kv motor on a 6s set up will still give you good speed.....and.....if you needed more speed, the 750 kv motor would easily be able to be steeped up to run a bigger pitch prop or a greater cell capacity battery, if need be.

Here's the thing !

The one 'real unknown' is exactly how heavy the board is going to need to be, especially on the day - so you want to have power options.....more than speed.
My gut tells me, to manage the intended size of wave - wind conditions and overall surface of such a wave.....you will need some serious weight.....30 kg's plus.... that's heavy.

The board could easily realise speeds down the face of 40mph plus.......remember - aerodynamics only really becomes effective over 25 mph - so for the most of it, we dont experience to much of it adversely with our smaller boards.....and yet, wind lift is an an issue for us to overcome.How much more so will it be an issue for that size of board, at the speed - also having to overcome the surface conditions.

If you go for a higher kv motor- you may have the desired speed - BUT - if you have to ADD WEIGHT - the motor and battery combo may not be able handle the overall load.

Whereas - with a low kv motor...it will better handle greater weight/load - AND -if you need more speed....you can simply increase the pitch or increase the cell capacity........
Changing a prop or battery pack in a Zodiac is much easier than changing the motor.....You are not going to have any options of 'trying it out' prior to the actual day....

The Right Options....is what you will need....for it to be a success

Bro ********. ...
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