Charge Air Cooling

Charge Air Cooling

Flow Duct To Charge Air Cooler







The inlet trim elements in the rear side panels were modified. These possess a characteristic design for the new 911 Turbo, including an additional bar in the middle of the inlet duct. The form and position of this bar were specially designed, and the bar does not hamper air flow into the flow duct in spite of the slight reduction in the cross-section of the inlet. In addition, the manufacturing method for the plastic parts was modified to achieve an increased duct cross-section with lower production tolerances. The result is a reduction in flow resistance by approx. 10 % combined with a higher air throughput.







Charge Air Coolers

The charge air coolers have been further developed compared with the 911 Turbo (996) and the air flow onto the cooler surfaces improved. The result is more efficient charge air cooling and therefore higher power and torque values.







Outgoing Air Routing Through The Rear Apron







The outlet openings for the outgoing air of the charge air coolers were provided with a new design in the completely newly developed rear apron.

Boost Pressure Sensor/Intake Air Temperature Sensor







The boost pressure sensor measures the pressure upstream of the throttle adjusting unit (electronic throttle) as well as the air temperature before the air enters the intake system, and supplies this information to the DME control unit. The boost pressure is controlled by way of the position of the vanes in the turbocharger. Throttle adjusting unit (electronic throttle) The throttle adjusting unit (electronic throttle) has a diameter of 74 mm.

Intake System

Both the intake pipes from the air cleaner to the turbocharger and the pressure pipes from the turbocharger to the throttle were modified with respect to their flow properties and the flow resistances reduced. The intake distributor is still made of plastic and is now produced in one piece. Compared with the intake distributor of the 911 Turbo (996) with a separate intake pipe support made of aluminium, the one-piece design offers weight advantages and improved flow transitions to the cylinder head. In addition, the dimensioning of the intake distributors was adapted to the new turbocharger concept. The intake distributor of the new 911 Turbo has a silver paint finish to improve the engine compartment design. A weight saving of approx. 4.4 lbs. (2 kg) was achieved for the intake system compared with the 911 Turbo (996).