Motor KV and RPM question

[Nick1979]

I am looking at a boat which has 2000KV motor and is listed to run on 2x2S or 2x3S packs. on 2x2S it will produce 29,000 rpms, and with a 2x3S it will be 44,000 rpms. My question is, since I will run 2x3S packs, isn't 44,000 rpm way too much? Will this combination work? The boat is a 37" catamaran.

[Fluid]

What size is the motor? Yes, 44,00 rpm unloaded is a lot, but depends on how you run. How will you run the cat: oval racing, general sport running, speed runs? How long do you want to run? What speed do you want? Exactly what batteries will you run? Exactly what ESC?




.

[Nick1979]

What size is the motor? Yes, 44,00 rpm unloaded is a lot, but depends on how you run. How will you run the cat: oval racing, general sport running, speed runs? How long do you want to run? What speed do you want? Exactly what batteries will you run? Exactly what ESC?




.

I am interested in straight runs. The boat in question is the TFL Genesis with Seaking 180A SSS 4082 2000KV motor. What I am trying to know is if it is realistic for this combination to run well on 6S which will produce about 44,000 rpms. The boat in this combination is listed as a 4S/6S.

[fweasel]

The Genesis will run fine with that setup on 6S is propped accordingly. It's a narrow hull and turns poorly, but for just making strait line passes it does well.

[plinse]

Running on 6s you will have higher speed and the rest depends on what you want to do.

Straight line passes with time to cool down afterwards can use a bigger propeller then continuous racing.

Looking for straight line speed you should be ok.