Sorry If this is a dumb question and I probably should have searched more, but here it goes.

As a school project we are building a RC car from the ground up. One Guy on the team purchased a brushless motor ( Team Epic TRI10210). With a little searching we found that we needed a brushless speed controller to interact with the speed controller we already have. I have also read that this should be rated by watts? If Iremember right. Team Epic has not responded to my emails so I thought that Iwould try here. We just kneed to know what size to get and how to wire it.

Thanks for the help

Alan

When you get a brushless speed controller it wil replace the speed controller you already have. Motors have a watt (or is it amps?)rating that tells you how many watts it will try to draw in order to perform at its max potential. The speed controller needs to be able to handle providing those watts from the battery. If your motor draws a max of 100 watts, your speed controller has to be rated at a minimum of 100 watts.....given your battery can provide that kind of "wattage".

Im no expert by any means, but that is what I understand. Im sure someone else can explain further.

Amps.

Good controller and relatively cheap

http://www.amainhobbies.com/product_...-Brushless-ESC

Ok I see how things go from this link.

http://www.empirerc.com/motorwiring.htm

Istill do not know the Amp rateing Any Ideas.... This is all I could get from the Manufacturer.

Thanks Again

<font size="2" face="Arial"><p align="left">DUO Brushless Motor, (13.5 Turn).</p><p align="left">Features: TrinityOld Stock Class turn equivalent brushless motors for the ROAR and IFMAR brushless spec classes. The DUO motors feature adjustable timing, sintered rotor, heavy duty precision ball bearings, and a light weight aluminum can. The best part is the DUO motors may be used with either sensor or sensorless speed controls. This allows the racer to run what is the best speed controller. You are no longer locked into one type or manufacturer of speed controls.

Includes: (1) Duo Brushless Motor, (13.5), Equivalent to the old ROAR rules and comes with a sensor wire.

Requires: Installation in vehicle with appropriate motor screws, pinion andattaching the speed controller wires to the correct tabs on the motor.

Specifications: Length: 2.1" or 52.5mm,Can Diameter: 1.4" or 36mm,Shaft Diameter: 0.12" or 3.2mm.</p></font>

if you cant find the amp draw, idewinder would more than suffice for that motor.  ESC rated higher than the motors amp draw hurts nothing, too low and you may burn up the ESC.