Porsche 911 Carrera 4 Brochure & Specs page 29

Inner strength alone is not enough.
It somehow needs to be put to use.
Six-speed manual gearbox.
Accurate and involving: the The gear lever throw is short and
six-speed manual gearbox is the precise, enabling a rapid gearshift
link to each and every gear. The action and positive response. An
cable-operated gearshift unit is optional short shifter is available
designed for optimum progression from Porsche Exclusive.
through the gears and the gear
lever is insulated from the engine
and gearbox.
In addition, all 911 models have
a self-adjusting clutch. In compa-
rison with conventional clutches,
this reduces by up to 50 % the
added release loads that normally
occur as the clutch begins to
wear.
Hill-start assist.
The system automatically detects
that the vehicle has been braked
Hill-start assist comes as to a halt on an incline. Provided
standard for manual and Porsche a gear is engaged, the brake
Doppelkupplung (PDK) transmis- pressure is maintained at all
sions. It assists the driver in four wheels for approximately
making a comfortable, smooth 2 seconds once the footbrake is
and roll-free start on an incline. released. The vehicle is therefore
temporarily prevented from rolling
The 911 |
Transmission
911 Carrera S Cabriolet
backwards. This brake pressure
is reduced once sufficient revs
have been generated by the
driver depressing the accelerator
pedal (or, in the case of manual
transmission, the accelerator
pedal is depressed and the clutch
is released).