Quote:
Originally Posted by Kodename47
Of course the percentage changes. How does a gearbox become more of a restriction as power increases? Same for drive shafts, clutch etc? Are you telling me that based on these kind of figures that a 600bhp car, using the same drivetrain, wheels and tyres, would be losing 150hp more than a stock car? If so, where do you think that power is going? Drivetrain losses are the power (or more precisely torque) used up to move those components. They don't suddenly become harder to move because you've got a more powerful engine. OK so there may be more friction and tyres pressures at play, but is that really enough to lose 50hp or more?
Edit.... I see you changed your reply as I wrote mine  |
If you are familiar with MAHA dyno's they will do a wind down to detect drivetrain loss, you can see my car losing ~58HP at via the drivetrain. A number of OEM's use these dyno's for chasis testing as they can estimate the crank power as well. Given i don't know everything about how the calculation works or the real answer to drivetrain loss but from what I have been told it is fairly accurate. *shrug*
