Dyno run today! - Page 2 - MBWorld.org Forums

05-16-2015, 01:54 PM

#26

g-f

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996TT

Quote:

Originally Posted by Gerry_M

Power is the rate of doing work and is time dependent. If your car goes faster and spins those drivetrain components faster (in less time) then absolute drivetrain losses goes up so then 430rwhp/.83=516hp is correct. Think about spinning the wheels from 0 to 100 in 10 seconds vs 9 secs. Those wheels are requiring more power from the engine and therefore more drivetrain loss.

Of course, but the thing is the engine doesn't drive these parts faster. At 5000rpm, the parts are moving at the same speed wether you're making 400rwhp or 500rwhp. They do accelerate faster though.

I don't know maybe the real life number is in between a fix % and a fix hp loss number. But if we push the example to the extreme, would a 900rwhp C63 (not really plausible but bear with me) have 150rwhp of drivetrain loss? Maybe but I doubt it.

It might be just me that has a hard time picturing it in my head.

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