T5 and IRS Final Drive Gearing

[jceckard]

Try using an online calculator like:

http://www.tremec.com/calculadora.php

You'll need to know your rear end gear ratio, the diameter of the tires, and the ratio of the gears in the transmission (if your's isn't in the list).

[hayton55]

Thanks, I should have researched the forum first before asking the question. It appears that this rpm in 5th is somewhat normal; didn't know enough at the time of purchase to ask for a higher gear ratio so that I could use the 5th gear without fear of a speeding ticket…..