am3rican
Well-Known Member
A lot depends on your tire diameter as well. Most of us are running larger diameter tires than what came on the car. For example, running a 3:23 with a 28" tire (not stock size) will give you a final gear ration of 3:00.
Here's how to calculate your final gear ratio when you are not running stock tires: http://www.4lo.com/calc/geartire.php
Thanks for posting this. I was looking for something like this since my tach doesnt work but my speedo does.