The 911 | Chassis
911 Carrera 4
Sport Chrono stop timer Comparison of the ETV characteristic curve in
‘Normal’ mode and ‘Sport’ mode
Throttle response
in ‘Sport’ mode
Pedal travel (%)
(%)
Torque
(as percentage of maximum)
Throttle
response in
‘Normal’ mode
Both sets of characteristics
are dependent on engine
speed.
Euphoria.
At the push of a button.
Sport Chrono Package Plus.
All 911 models can also be fitted
with the optional Sport Chrono
Package Plus. It offers even
sportier tuning of the engine
and chassis, and delivers even
greater driving pleasure as a
result.
Included in the package are a
digital and analogue timer, a
‘Sport’ select button, a perform-
ance display and a personal
memory function in Porsche
Communication Management
(PCM). Also – when fitted
in combination with Porsche
Doppelkupplung (PDK) – the
‘Sport Plus’ button.
When the ‘Sport’ button on the
centre console is selected, the
EMS SDI 3.1 engine management
system enhances the engine
response. A modified throttle
map relates the pedal angle in the
footwell to a much wider angle
of opening on the throttle valve.
Throttle response is significantly
more immediate, and in the
higher gears, a hard rev-limiter
helps protect the engine under
acceleration.
The optional Porsche Active
Suspension Management (PASM)
also switches to ‘Sport’ mode for
harder damping and more direct
steering, and, therefore, better
road holding.
A hard rev-limiter is also applied
in the automatic mode of the
optional PDK, while gearshift
points are delayed until the upper
rev range. The shift times are
shorter, the gear changes sportier.
At low rates of deceleration –
even with high engine speeds –
the system initiates a swifter
brake-induced downshift. In
manual mode, gear changes
are faster and more dynamic.
In ‘Sport’ mode, the trigger
threshold for PSM is raised
for increased longitudinal and
lateral dynamics. Agility is
enhanced under braking for
corners with PSM enabling
greater manoeuvrability under
braking and exit acceleration,
especially at low speeds.
For maximum dexterity, PSM can
be set to standby while the car is
still in ‘Sport’ mode. For safety, it
is set to intervene automatically
only when ABS assistance is
required on both the front wheels.
In combination with PDK, the
Sport Chrono Package Plus has
two additional functions that are
activated by pressing the Sport
Plus button, to take driving to an
even sportier level.
‘Launch Control’ is used, for
example, on the track to achieve
the best standing start possible
– a racing start.
