General

4.1 General

The concept used for the chassis makes a decisive contribution to the handling characteristics of a vehicle. The demands for the new 911 Carrera models were particularly high, since in addition to the important aim of ensuring outstanding comfort and day-to-day usability, the development goals included achieving best-inclass performance for even better driving dynamics and agility.

In order to achieve these goals, all chassis variants of the new 911 Carrera models have been enhanced. In addition to fundamental design modifications on the front and rear axles, features include the enhanced Porsche Active Suspension Management (PASM), the PASM sports chassis (-20 mm), the new Porsche Dynamic Chassis Control (PDCC), the completely new electromechanical power steering, the revised brake system as well as the new wheels.

4_01_11 Chassis 4

General Front axle 111 114

Rear axle

117 Power steering 119 Dynamic engine mountings 127 Porsche Active Suspension Management 130 Porsche Dynamic Chassis Control 133 Wheels and tires 140 Tire pressure monitoring 141 Brake system

143 Electric parking brake 144 Porsche Stability Management 148 Porsche Torque Vectoring 153

Chassis 4

Starting from the previous models, the main development goals in the area of the chassis for the new 911 Carrera models were as follows: • Extension of the wheelbase by 3.9˝ (100 mm) • Increased track width on the front axle (911 Carrera by 1.8˝ (46 mm), 911 Carrera S by 2˝ (52 mm) • Redesign of the front and rear axle with optimized kinematics and elasto-kinematics • Improvement of the PASM function with four additional height sensors • Porsche Dynamic Chassis Control (PDCC) • Electromechanical power steering • Electric steering column adjustment • New generation of tires with larger rolling circumference (+ 4%) and enhanced rolling comfort • Comfort air pressure • Sport button as standard • Sport Chrono package including dynamic engine mounting • Porsche Torque Vectoring/Plus (PTV/PTV Plus) with mechanical/electronically controlled rear differential lock

Longer wheelbase and wider track at the front

Significantly improved driving stability, particularly at high longitudinal and cornering speeds, was achieved by modifying the vehicle dimensions. At the same time, the compact external dimensions that are typical of the sports car were retained. The wheelbase was extended by 3.9˝ (100 mm) with an increase of only 2.2˝ (56 mm) in the vehicle length. The track width at the front was increased by 1.8˝ (46 mm) for the 911 Carrera and 2˝ (52 mm) for the 911 Carrera S, while the vehicle width at the front was extended by 2.4˝ (61 mm). The vehicle width at the rear and therefore the overall vehicle width has been retained.

Wider front axle of the 911 Carrera

Wider front axle of the 911 Carrera S

Chassis variants

Like the previous models, the new 911 Carrera and 911 Carrera S have different chassis variants. In addition to the basic chassis, two further chassis options are available for the 911 Carrera: the variable Porsche Active Suspension Management (PASM) damper system with chassis lowered by approx. 10 mm as well as the PASM sports chassis (with chassis lowered by 20 mm and mechanical/electronic rear differential lock).

The 911 Carrera S features the PASM chassis as standard (10 mm lower than the basic 911 Carrera chassis) and is optionally also available with the PASM sports chassis (lowered by an additional 10 mm and mechanical/electronic rear differential lock). Chassis 4