Upgrading A Mini 4WD
A Mini 4WD fresh out of the box will not be at its optimal level, and must be upgraded in order to participate competitively in racing contests. Tamiya, among other companies offers numerous upgrades to improve speed, stability, and endurance. Weights are also available for balancing. Any additions should keep the speed and mass of the minicar in accordance with each other, so that the gravity would nullify the momentum and imbalance of the vehicle, and prevent accidents at the curves of the courses.
Although cowls are not supposed to be upgraded, there are some instances wherein a racer trimmed cowls to enable better aerodynamics. This is also common with Philippine race settings.
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