I don't really have a set speed i want just want to see what the multiple motors will do and it will be fun to make the gearbox i am thinking of in my head to connect all the motors, the setup will change a lot just like all my boats.

And the 3000kv KD36 works pretty well on 18nihm cells and it is pretty close to 6s with a 54mm prop (geared down a little) so i think 6s would be work at least. I had that in my villain before the KB45 <u>without any water cooling</u>. That is what got me started on that brand because they can handle A LOT. But that is a lot of unloaded rpms...

Another idea is two KB45 1200kv XLs on 9 s each and because i have one and an esc that will work and just get another motor and esc.
That would be 6660 watts too at 100 amps... and two motors are prolly gonna be faster than three at the same power and less rpms.