Originally Posted by C_Plunkett
The correction accounts for power loss through the drivetrain. The dyno measures torque and HP at the rear wheel. The correction then applies a percent drivetrain loss to derive the flywheel torque and HP. The original poster stated that they were using a correction of 1:1, so what is reported as flywheel on the charts is actually what is measured at the rear wheels.
I know a
chassis dyno measures horsepower and torque at the wheels as apposed to an
engine dyno that measures at the flywheel. This is the first time I have seen anyone use a form of "correction" to those figures to obtain flywheel measurements.