550 motor capable of 8s?

[Blackangelofdeath]

I see its relatively easy to find an ESC capable of handling 8s for trucks/buggies etc. But I'm not finding any 550 motors capable of handling 8s without going to a heli or plane motor. Any suggestions? I'm trying to build a horizontal missle!

[Sixtysixdeuce]

I see its relatively easy to find an ESC capable of handling 8s for trucks/buggies etc.

Uh, there are only three that I'm aware of:

Castle Mamba Monster XL

Leopard 200A

Hobbyking 200A

Most 1/8 & 1/5 ESCs are 6S max

As for the motors, you need to be looking at max RPM vs. KV. If a motor is rated for 60,000 RPM, it would have to have a KV rating of 1,750 or lower to handle 8S (33.6V fully charged).

Can't say I've ever seen a 550 can rated for more than 4S votage-wise, and very few could even handle 6S based on max RPM. If you're dead set on it, you should probably look at the Castle 1415 series in 1.5Y (1,500 KV) or 1Y (1,100 KV).

Having said that, if you're needing that kind of power, you should probably be using a 55mm 1/5 scale motor anyway. I've cooked 550s on 3S & 4S trying to move 8 lb buggies.

[Blackangelofdeath]

Thanks for the info. Although, I can't say I'm disappointed that a Cole can won't fit in my 1/10 pan car.

[proffesso]

why not go a heli or plane motor? or even a boat motor...those things are made for 100% throttle/load all the time.

http://plettenberg-motors.com/estore/index.php/inrunner-c-3000

or Neu, even Leopard and TPower. just rememeber, you'll be paying well above the norm for these

[Sixtysixdeuce]

why not go a heli or plane motor? or even a boat motor...those things are made for 100% throttle/load all the time.

They don't have to deal with the extremely heavy low RPM loads, and are not designed to. In a plane or boat, there's practically no load at start up. In a car/truck, the load on the motor is heaviest at 0 RPM.

They also benefit from much more efficient cooling. Think about nitro engines; there's a reason car/truck nitros have huge cooling heads. Airplane engines see a ton more airflow, and marine engines are water cooled. Same for electric motors & ESCs.