540 motor will support . You can connect ESC and servo to radio receiver. Battery selection depends on you ESC selection.
Like NI/Lipo/Life batteries . Commonly used are 2S lipo ie 7.4 Volt batteries.
So take care while considering battery and ESC which are compatible. Servo and reciever also must match this voltage range. Separate battery pack can be feed to receiver but usually no one like to add more weight to the car.
ESC : ESC controls the throttle trigger to motor. Check the AMP rating which can handle maximum throttle or abuse moment.
Motor : Any 540 size motor will match the requirements. Brushed/Brush-less types exists. Brushless is maintenance free. Also sensored/sensor-less version exists in brushless version. Sensor-less have more precision in operation. Depends on your budget and application select wisely
Servo: Lot of varieties exists. Go for metal version so that you can abuse it all ways. Check for voltage range. Also speed or torque demand.
For drift cars speed is better under {0.12Sec} although not necessary. Anything {torque}more than 2 Kg is fine.
For crawlers certainly torque matters. Check you application.
Receiver : Check you receiver which is compatible for EP cars. Ex} Sanwa RX481 receivers are only for Electrica and not gas.
Radio: Dont worry any one works fine.
Order from
www.hobbyking.com. ESC and Servos are available at cheap cost. if you need any assistance, ask me. ||
I am into RC drift cars.