RacingDiffs

Calculate precise top speeds using your transmission and differential gear ratios.

This application delivers accurate top speed calculations based on your transmission and final drive ratios. It displays the maximum achievable speed for each individual gear.

The required inputs to enter are:

Tire dimensions

Transmission gear ratios

Final drive ratio

RPM limiter (Rev limit)

You can also select your preferred unit between kph and mph.

The information this app provides is vital for track and motorsport enthusiasts looking to optimize their car's gearing for a specific circuit. It assists in finding the ideal balance between top speed and acceleration, a critical factor for drag racers as well.

What's New in the Latest Version 1.3

Last updated on Oct 12, 2024

Bug fixes and improvements.