Car/Truck Setup Guide

This page is used to guide you in estimating the required motor, voltage, and gearing for your car or truck. This tool is designed for typical systems; 20lbs or less and for speeds 50mph or less.

There are some parameters that are not listed such as tire ballooning, motor resistance, current draw, etc that can alter real-world results, but this is intentional to make selection as easy as possible at the expense of some accuracy.

Step 1: Enter your vehicle data

Desired Vehicle Speed (?):	mph
Vehicle Weight (?):	lbs
Front/Rear Differential Gear Ratio (?):		Building List...
Transmission Gear Ratio (?):		Building List...
Additional Gear Ratio (?):	:1
Spur Gear (?):		Building List...
Tire diameter (?):		Building List...

Step 2: Results and Adjustments.

Note: The initial voltage and motor kv suggestions shown below were derived from what I consider a good baseline starting point. The suggested pinion is what is needed to achieve the top speed you entered above for the displayed motor kv and voltage, but may not provide "ideal" results. From there, you can adjust the sliders until you get the desired result.

When adjusting the sliders, try to keep the results green for best results. Orange text means it will work, but is probably not ideal (may have high temperatures). Red text means the result may be unrealistic and/or you may have very poor results.

Motor KV:

Battery voltage:

Pinion tooth count:

Motor RPM (?):
Rollout (?):
Final Vehicle Speed (?):
Battery Amperage (?):
Below is a list of possible motors whose power range (w) and kv range (kv) are suitable for the setup. Notes