Gear & Transmission Calculators

Calculators to help you out

drag-performance-btn

Enter your 1/4 mile race car's information into our calculator to see how well you will perform. Then, change Richmond's performance gear ratios and beat your best time!

Access Drag Performance Calculator

street-performance-btn

This calculator will help your hot rod or street machine get to the next level without red-lining your engine. The Street Performance calculator is also handy when changing tire sizes on street rods.

Access Street Performance Calculator

gear-ratios-btn

Considering changing the size of your tires? Use this gear ratio calculator to see what ring & pinion gear ratio will be right for you after a tire size change.

Access Optimum Transmission Gear Ratios Calculator