This will calculate the speed of your Fiero (or other car) in each gear at a given RPM with each of the available transmissions.
Anything in a text field can be customized for your needs. Enter your custom ratios, or select a pre-programmed transmission from the dropdown menu.
The first speed and RPM listed is where you will start the gear after a selected rpm shift.
The second speed and RPM is where you will end the gear at the selected rpm.
The graph will only update when a checkmark is selected (or de-selected).