| General Information About Your RC Cars |  |  | | | General Info About RC Cars | The single most important thing about motors is that cleaning is thepriority. The best way to improve the performance of a motor is tokeep it CLEAN. It does not mean to spray it out once a month withmotor spray, instead an absolute cleaning is very important. If you area serious racer cleaning motors means extra and free horsepower forthe engine. This is because it gives proper inflow of fuel and preventsand contaminants or foreign bodies from hurting the machine.
Cleaning of all components is an important aspect. It is very importantto clean the brushes and the commutator since this is where the poweris applied. Any drop in the resistance of the connection from thebrushes to the commutator will be rewarded with either an increase inpower or efficiency, or BOTH!
Allowing brush dust to accumulate on the brushes and the com willadd resistance to the connection of the batteries to the motor. As theresistance of that connection is increased, performance is decreasedbecause some of the battery power is converted to what is called 'Isquared-R losses'. This results in heat being produced at the brushconnection instead of power being transferred to the com.
The best way to keep brushes and com clean, without cutting them, isthe little shaped eraser-looking products from RPM. Use one on boththe brushes and the com between runs. This keeps the motor 'fresher'between visits to the com lathe. There is not any real markeddifference between the yellow one and the black one, they both seemto do the same thing equally well.
Another way to keep peak performance is to be sure that the com istrue. This is accomplished by regularly cutting the motor on a comlathe. Doing it about every 5-10 runs may seem excessive but doing itso often, you will only end up taking .001-.002 from the surface. Sincetaking such a small cut, the motor can be re-trued upwards of 25times.
Springs are yet another way to alter the performance of a motor. In 4-cell 1/12th scale, it is best to run LIGHT springs. Run a Trinity gold onthe '+' and a Trinity silver on the '-'. This has proven, after whatseems like months on the dyno, to be the best combination for 1/12thscale STOCK racing. 4-cell mod follows basically the same rules ofthumb for springs, but the timing needs to be adjusted for maximumefficiency as well to take full advantage of what the motor can do.
 | | | | |
|
1/10th Nitro
