drivetrain losses

[carrera84]

How much are the expected drivetrain losses for a 3.2 carrera when dyno testing?

Has anybody figures for the G915 and/or G-50 ?

[JeremyD]

15% loss is the accepted value although I have also heard of folks that have actually computed 12-13%

[carrera84]

Thank you for the quick answer Jeremy.

Just to insure we speak about the same:

trivetrain losses = engine power - power at the wheels (?)

(or better: engine power = power at wheels + trivetrain losses)

15% would be very low.

[davidppp]

Hello there.

Tyres are the big variable..pressuresdiameters of rollers etc..

They get veeery hot on the rollers..this is where a lot of power goes..

Kind regards]
\david