The new central position of the injector improves combustion, which has direct effects on fuel economy and emissions quality. Two fuel pumps – one per cylinder bank – supply the petrol direct-injection unit with a system pressure of up to 250 bar. Moreover, an adjustable exhaust camshaft makes it possible to control the charge exchange process even more precisely. On the intake side, Porsche continues to use the proven VarioCam plusPlus, which variably adjusts both valve lift and valve opening duration. Another advantage of the dual-side, adaptive, reduced friction valve train: it offers even finer adjustment of the turbocharged engine to the spontaneous response at low revs that is typical for Porsche.
By implementing a new cylinder wall coating process, in which a plasma beam coats the cylinder surface with iron, engineers reduced friction and thereby the consumption of fuel and oil. Traditionally, lightweight design also plays a central role in the design of the engine. As a result, the detailed lightweight design reduced the weight of the aluminium crankcase by 1.5 kg, and the new polymer oil pan is even two kilograms lighter than in the previous generation engines.