ok, again...
You assume that the 124HP are measured at the crankshaft, and that what reaches the transmission is actually less than than, because of fan and belts. And you want to know how big that difference is.
on the other hand, I assume that the engine is actually producing more than 124HP at the crankshaft, say 140 or so, but only 124HP reach the transmission, the difference is what is used by fan and belts.
This would make sense, since the derating limit is determined by the transmission and the engine is well capable of producing more than 124HP.
so, questions:
- does anyone know where the 124HP are measured - crankshaft, crankshaft with fan, or after the drive belts?
- why do you want to know how much the fan uses?