Porsche Active Suspension Management (PASM), an electronic damper adjustment system, is fitted as standard on the new 911 GT3. PASM actively and continuously controls the individual damping forces for each wheel according to current road conditions and driving style. The 911 GT3 is also 1.2 inches (30 mm) lower than the standard 911 Carrera.
At the press of a button, the driver can choose between two setup modes. ‘Normal’ mode is designed for sporty driving on general roads and on the racetrack in wet conditions. ‘Sport’ mode is especially for maximum lateral acceleration and the best possible traction on the racetrack.
Depending on which mode is set, and the road conditions detected, the system automatically selects the best damper application within the two setup ranges.
A range of sensors monitor the movement of the body during acceleration and braking or on uneven surfaces. The PASM control unit then evaluates this data and adjusts the damping force, depending which mode is selected. Pitch and roll are reduced and the road contact of each individual wheel is optimized.
In ‘Sport’ mode the suspension is automatically set to a harder rating specially designed for use on the racetrack. The system will detect any unevenness on the surface and then, to improve road contact, it switches within a few milliseconds to a softer rating within the sport or stiff set-up range. When the track surface becomes smooth again, PASM returns to the original harder rating.
In ‘Normal’ mode, if the driving style becomes more dynamic, the system automatically switches to a sports-oriented rating within the normal set-up range. The suspension becomes stiffer so that driving stability and safety are increased.