The GearCalc program will help you choose the optimal gearing for your driving ability. The best possible gearing will enable you to run average RPM's that will result in your engine producing maximum horsepower and torque for a maximum percentage of each lap. This is achieved by using your engines optimum Target average RPM's in your calculations using GearCalc which in turn will provide you with the best possible gearing choice.

This Target Average RPM's should be available from your engine manufacturer. It is also available from data acquisition devices such as MyChron. As your driving skill improves you will increase your average RPM's thus allowing you to reduce your sprocket size which will yield faster lap times. The GearCalc software will help you choose optimum gearing as your ability and times improve.

It is important that the data used: Lap Times, Actual Average RPM's, Tire Circumference and Track Length be as close to actual as possible. The best aid in getting accurate data is an effective data acquisition device (it will supply Actual Average RPM's, Maximum Horsepower and Torque RPM's (Target RPM's) and Driving Line Track Length).