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Let's start by throwing out the clutch. Not relevant to this discussion.
You are correct in how you quantify the efficiencies but are overlooking the fact that they are not a fixed value. Frictional losses increase as a function of both speed and load so efficiency of the transmission and differential are highest at low speed and low load.
Don't get me started on the magical properties of tires. Uggh!
Last edited by Ultramaroon; 03-14-2015 at 11:15 PM.
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