Lightweight Construction on the V8 Engine

Lightweight Construction On The V8 Engine

The timing-case cover and valve cover are manufactured entirely from magnesium, and various screw connections were changed from steel to aluminum screws. These lightweight construction measures made it possible to achieve a further weight reduction of approx. 7.3 lbs (3.3 kg). In the Cayenne S, the oil guide housing is additionally manufactured from magnesium, reducing its weight by approximately 4.6 lbs (2.1 kg).







VarioCam Plus, the system used to control the intake camshafts, is also used in the new Cayenne V8 engines. Apart from continuous adjustment of the valve timing, the system also enables adjustment of the valve lift for the intake valves. When combined with direct fuel injection, this allows high power output and torque values, while reducing fuel consumption. A fully aluminum, lightweight camshaft adjuster is used in the new generation of V8 engines. This lightweight construction measure achieves a weight reduction of approx. 3.7 lbs (1.7 kg) and also reduces the rotating masses. This in turn results in improved adjustment speeds and more agile engine response.