I was thinking about internal friction-losses in today's 18k Rpm V8's, which should predominantly be viscous losses within various oil-films, in bearings and pistons.
The the way I understands things, the majority of said losses should be conveyed out of the engine with the lubricant, to finally exit the car through the oil cooler?
If today's engine's have a mechanical output of 720 Hp or so, anyone have a number for friction losses as described above?