Power and torque curves for the new D16E. Volvo also introduced a 580hp version.

To reach power outputs of 660 hp, the D16E has undergone a number of design improvements. The in-line six-cylinder 16.1-liter diesel engine has a new one-piece cylinder head, overhead camshaft, 4 valves per cylinder and electronically controlled unit injectors. The engine is equipped with a new turbocharger and an intercooler. It is quiet in operation, which reduces the need for heat-inducing sound-deadening panels.

Maximum torque from the engine is available over a wide rev range, with 90% of the torque available within 2 seconds of pulling away.

The timing mechanism is located at the rear of the engine, which creates a compact and quiet design and saves weight.

The D16E uses Selective Catalytic Reduction (SCR)with AdBlue as an exhaust aftertreatment to meet the NO_x requirements of Euro 4. (Earlier post.)

A new version of Volvo’s I-Shift transmission is designed for a 60-tonne gross combination weight, although the driveline can be optimized to handle gross combination weights above 60 tonnes.

I-Shift is basically a 12-speed electronically controlled mechanical splitter and range-change gearbox designed for automatic gearchanging. The I-Shift gearbox is both shorter and lighter than a conventional splitter gearbox.