Re: Why does the M112 engine's torque fall off at 4750rpm?
Can you put a link to the charts, seems strange the drop occurs just when the traction control kick in.
The dual length intakes help power low down, at higher revs the are "switched" out, I thing HDDP had some photos showing the arrangemment. Two inlet and one exhaust valve might be hurting the VE at higher rev.