Motor Selection? 4S for Twin Otter

RavenFly

Member
A couple of years ago I kit-bashed an FT Otter with the tail from a bushwacker, with twin red bottom motors. It was an absolute riot, but I didn't build it for durability. I'd like to rebuild and add better waterproofing (adding weight), so I'd like to go 4S with three-blade props to keep out of the water/spray from the nose.

I have red bottom RS2205S motors, but they are not rated for 4S. I am good on 30a 4S ESCs, but I think I should upgrade the motors.

What is the difference between FT 2205/2206/2207 motors? I don't see current curves with props on the store, so not sure which would work with my 30A ESCs.

Ideas?