Aerodynamics and Air Routing

Aerodynamics And Air Routing

Improved driving performance together with reduced fuel consumption and emissions has helped significantly to improve aerodynamics. The tasks involved become more and more complex from one generation to the next as aerodynamic requirements and the new regulations that apply develop in opposite directions. This makes it increasingly difficult to improve aerodynamics while at the same time complying with legal requirements. Larger door mirrors are used on the new 911 models in order to comply with future regulations. The air intakes have also been increased in size for improved cooling and to facilitate the higher engine power. These measures have a direct effect on aerodynamic resistance.







In spite of the increased aerodynamic requirements of the new generation of engines, the aerodynamic values of the new 911 models are mainly at the same high level as the previous models and also set new standards against the competition.

The objective is to ensure that all operating components are cooled with minimum air resistance when outside temperatures are high. The main focus here is on engine and brake cooling. The air intakes in the front section have therefore been optimally adapted to suit the relevant cooling air requirements. The air intake in the middle guides the air to the two outer radiators at the left and right. By diverting the air flowing into the interior, the middle radiator is no longer needed for the Porsche Doppelkupplung transmission (PDK). As a result, the same aerodynamic values are achieved both for vehicles with manual transmission and vehicles with PDK.







Another task of vehicle aerodynamics is to minimize the disruptive effects of soiling, particularly soiling on the door mirrors that can impair driving safety. Thanks to the optimized shape of the door mirrors, water at the top of the mirror is collected in a guide groove and diverted to the sides. A gurney flap underneath prevents the formation of air currents, which could send rainwater onto the mirror.