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Old 10-09-2012, 03:59 PM   #10
WDE46
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Join Date: Sep 2012
Location: Old Greg's Cavern
Posts: 9,203
My Ride: 2004 330Ci OBM
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.
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Last edited by WDE46; 10-09-2012 at 04:02 PM.
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