Originally Posted by WDE46

I just made a nice table. It is setup for a 330Ci 5-speed manual with 245/40-17s on the rear wheels. You can put in anything.

https://www.dropbox.com/s/r1rxxal8mv...0vs%20RPM.xlsx

Use a wheel radius in METERS (you'll have to calculate that yourself). Unfortunately, the wheel radius changes with speed and load, so an average is the best I can do. Ratios are unitless by definition.

Attached a screenshot of the plot for those who are without excel.

Wow that used up exactly the time I had left until I leave work hahahaha.