Quote:
Originally Posted by bfrank1972
When you say 'a percent specific to the car', it sounds to me like you're saying car X has a 15% loss over the rpm range, car Y has 10% loss over the rpm range.
I think what these articles are saying - car X might have 20% loss at 2000 rpm, 15% loss at 4000 rpm, and 12% loss at 6000 rpm (don't take me literally on any of these numbers, just pulling out of the air for example).
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Each design of the engine, transmission, differential all have different efficencies. I can bet you a DCT is more efficient then a 6 spd. And a torsen is more efficient than another kind. Also depends on the driveshaft the material used, the lubricant reccomended. Everything.
An EVO 8 will be less efficient than a Miata. A Focus ST might be more efficient than a miata.
All comes down to part design, lubricant used, and number of parts.
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