I had the pleasure to work on a BMW 335d yesterday (which achieved 326.3bhp and 495.2lbft) so decided to put the T8 on the rollers...
We conducted 4 power runs, and the figures were very consistent throughout (ill add the graphs later once theyre scanned)
The figures achieved were
162.5bhp and the wheel which is
198.7bhp with an 18% transmission loss, or
208.3bhp with a 22% transmission loss...
Torque figures were calculated to be
295lbft at the flywheel
The RR Road we used is not open to the public but is used by several Motor manufacturers and a couple of well known race teams so all in all i was over the moon with the results, more so after we then sat and compared the graphs to other diesels that have been on the RR