Drivetrain loss
07-30-2015, 02:02 PM
#1
Drivetrain loss If this question has been asked/answered before, I apologize. A search didn't yield much so I figured I'd post it up here.
Anyway, my question is simple. Why is drivetrain loss always listed as a percentage? I know every car is different, but shouldn't it be a more solid number? I mean, let's assume my current setup (m6 with stock rear) is currently eating 30hp, and we'll say I dyno'd 300hp at the wheels. That puts the engine at 330hp, and a 10% loss. Why, if I bump the engine up to 500hp, does the loss suddenly increase to 50hp?
Anyway, my question is simple. Why is drivetrain loss always listed as a percentage? I know every car is different, but shouldn't it be a more solid number? I mean, let's assume my current setup (m6 with stock rear) is currently eating 30hp, and we'll say I dyno'd 300hp at the wheels. That puts the engine at 330hp, and a 10% loss. Why, if I bump the engine up to 500hp, does the loss suddenly increase to 50hp?
07-30-2015, 04:03 PM
#3
http://www.superstreetonline.com/how...in-power-loss/
Actually a really good article on it.
07-30-2015, 11:33 PM
#4
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I agree with the article, it's not a fixed number but it's also not a fix percentage. I remember getting into a lengthy debate with some other members about this once, and I still stand behind my statement that this "fixed percentage" deal is not accurate (though again, I do agree that a fixed number isn't exactly accurate either.) Additional losses will occur as power increases, but there is no fixed percentage that can be used to accurately express drivetrain loss for a given engine and drivetrain at any/every power level.