Mini RC Car Motor

Motor is the heart of a mini RC car. A Mini RC Car Motor is either the stock motor or one that is upgradable. Currently, rebuildable stock motors are the norm.

A Mini RC Car Motor essentially has the following parts. Permanent magnet set or stator, armature with copper wire windings, commutator with carbon brushes (some motors are brushless), other parts like washers, shims, wires, bushes and bearings as well as a heat sink, if any.

You can improve performance of your Mini RC Car Motor, which is central to over clocking the Mini RC Car. Carefully disassemble the motor, remember the place of each part and do the following steps:

1. Trim the commutator on a motor lathe. Just trim off the commutator so that its diameter is as small as possible. This will help reduce burden on the motor and battery. Even the factory assembling of commutator from its components causes a slight misalignment, which can be corrected by turning a little on motor lathe. Coat the commutator with some marker color, and look for any uneven remaining marker after a few passes. It helps in turning it to true shape. Even a slight misalignment in commutator can slip or bounce the brushes and the improper contact adversely affects the motor performance.

2. Place the armature in the exact center of motor can, called the stator, so that it rotates in the exact center of magnetic field for maximum performance. Make adjustments if necessary.

3. Place the steel or Teflon shims. Finally seat the heat sink, if any, for proper contact with motor.

Breaking in a motor is equally important for a Mini RC Car Motor. Run the Mini RC Car at slow speed without much acceleration or breaking. Keep the car 'coasting' (driving it by releasing the throttle, on its own momentum) so that it can be broken-in with minimum battery drain.

A 'pro' motor is already broken in and tuned in so you can skip these steps.