Quote:
Originally Posted by cdrazic93
I never said it is a fixed percent, I beleive its just a percent specific to the car. Like ultra maroon said, the more the load and the more the speed the less efficient the drivetrain components are. Thus increasing whp will decrease the efficiency of the drivetrain. I found that SAE paper that the superstreet article is talking about, but i didn't want to pay $20 to settle an argument.
As soon as I take my power train class I'll revisit this thread and shore up my findings.
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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).