The anti-enthusiast, pimp-my-ride thread

Okay, so you know you’re on the wagon when you’re considering swapping out your 3.73 Limited-slip differential ( 3k RPM @ 70 mph ) for a 2.93 diff from a 325e. If my autocross days are over, then switching-over to a diff less mechanical advantage would cause immediate gains in fuel economy.

*** nerd factor 4 time ***

Using the calculator found Here

gear

rpm

3.73 (stock)

3025

3.25

2636

2.93

2376.965