Gear Speed and Tire Size

The overall concept is great. However, when trying to share a PDF of the results it is slow to update the data. It often uses the previous data for several shares before finally picking up the newly input data to populate the sheet with. This is aggravating to say the least when trying to compare tire sizes and performance.

Redline only goes to 8k, needed it to rev to 9-10k...feels like I just wasted a dollar...

Very nice app that converts engine rpm to vehicle speed by taking into consideration transmission gear ratio, final drive ratio, and tire size. Results are presented in a table, a comprehensive graph and printed document. My Dodge Charger has an 8 speed AT that can be switched into a paddle shifted MT and this app handles all 8 ratios. In addition when I change between the Dodge approved 20 inch summer and the 18 inch winter tires, this app calculates any resulting vehicle speed differences. You can also input the new gear ratio if you're one who changes out the rear axle gearing for street vs. track. Author is responsive to suggestions and continually seeks ways to improve the app. Well done.