brakes PORSCHE CAYMAN 2006 1.G Information Manual

· 54 ·The new Cayman and the Cayman S |
Chassis
a more natural and involving
response to lateral and longitudinal
forces. Cornering agility is
considerably enhanced, with
greater scope for oversteer on
turn-in and exit. This additional
manoeuvrability is particularly
apparent in lower-speed sequences
and bends.
For maximum dexterity, PSM can
be set to standby while the car is
still in ‘Sport’ mode. PSM simply
monitors the forces acting on the
car and will only intervene in the
most critical scenarios, e.g., when
ABS assistance is required on both
front brakes.
To help you quantify this increase
in performance, the Sport Chrono
Package includes a compact timer
with swivel display which is
centrally located on the dashboard.
Functions are accessed via the
control stalk for the on-board
computer. Analogue dials measure
hours, minutes and seconds, while
a separate digital field displays
whole seconds, tenths and one
hundredths of a second. The digital
field runs in parallel with a second
digital display which is conveniently
located in the instrument cluster.
Sport Chrono Package Plus.
This enhanced Sport Chrono option
is available in conjunction with the
optional Porsche Communication
Management (PCM – see page 86).
It offers all the same functions as
the Sport Chrono Package as well
as some additional information
options and features.
‘Sport’ button on centre console
Lap or journey times can be
viewed, stored and analysed using
a special performance display in
PCM. The information available
includes time elapsed and
distance travelled on the current
lap, as well as the number of laps
completed and their respective
times. You can also view the
current fastest lap as well as the
remaining range till empty. Driving
times can be recorded for any
stretch of road, and benchmark
times defined. Other useful features
include a personal memory
function which is also controlled
via PCM. This can be used to store
personal preferences for a range
of systems, including daytime
running lights, ‘Welcome Home’
lighting, optional automatic air
conditioning and door-lock
settings.
· 55 ·
Sport Chrono Package.
Both Cayman models, like every
Porsche, have lots of performance
in reserve.
To help you explore even more
of that potential, there’s the
optional Sport Chrono Package.
This unique range of functions
provides simultaneous enhancement
of the engine and chassis for even
greater driving pleasure.
When you activate the package
using the ‘Sport’ button in the
Throttle response
in ‘Sport’ mode
Throttle
response in
‘Normal’ mode
Both sets of characteristics
are dependent on engine
speed.
Pedal travel (%)
(%) Torque
(as percentage of maximum)
Comparison of throttle maps in ‘Normal’ and ‘Sport’ mode
centre console, the throttle
becomes more responsive, the
rev limiter becomes harder, and
the engine dynamics become
more like those of a racing car.
While this is happening, the
optional sports exhaust system
(see page 41) and optional PASM
are also switching to ‘Sport’ mode.
The baseline damper rating is
now considerably firmer, enabling
faster turn-in as well as better
road-holding and traction.On vehicles equipped with
optional Tiptronic S, the automatic
gearshift is noticeably more
dynamic. Upshifts and downshifts
are performed at higher revs with
a faster gearshift action. When
you lift off the throttle to slow the
car, engine braking is applied
sooner. There are no unwanted
upshifts in manual mode when
approaching the engine speed limit.
To minimise assistance from
Porsche Stability Management
(PSM – see page 64), its trigger
threshold is raised. The result is
Sport Chrono timer

· 61 · · 60 ·The new Cayman and the Cayman S |
Safety
The brakes are cooled using a
special ventilation system which
channels air from the front
of the car to every part of each
assembly. This arrangement
ensures consistently high levels
of performance and durability,
particularly during heavy use.
The internally vented discs on the
new Cayman measure 298 mm
in diameter at the front of the car
and 299 mm at the rear. On the
Cayman S, the front diameter
is 318 mm. On both models, the
discs are cross-drilled to improve
wet-weather response and
minimise unsprung weight. The
calipers on the new Cayman
have a black anodised finish, while
those on the Cayman S are
painted red.
Standard brake unit (Cayman S) Standard brake unit (Cayman)Cayman
Braking system.
Both the Cayman and Cayman S
are exceptionally quick under
acceleration. Even more impressive
is the speed of response from
the standard braking system.
Several times more powerful
than the flat-six engine, the
brakes are crucial to the overall
performance of each car.
All four brake calipers have a
four-piston monobloc aluminium
construction. Key characteristics
include excellent rigidity, compact
dimensions and a very modest
contribution to unsprung weight.
The fast and positive pedal
response is eagerly assisted by a
powerful vacuum brake booster.

· 122 ·
Technical data
Cayman Cayman S
Engine
TypeBoxer Boxer
InstallationMid-mounted Mid-mounted
Cylinders66
Displacement2,687 cm33,387 cm3
Max. power (DIN) 180 kW (245 bhp) 217 kW (295 bhp)
at rpm6,500 6,250
Max. torque273 Nm 340 Nm
at rpm4,600 – 6,000 4,400 – 6,000
Compression ratio11.3 :1 11.1:1
Transmission
LayoutRear-wheel drive Rear-wheel drive
Manual gearbox 5-speed 6-speed
Tiptronic S (optional)5-speed 5-speed
Chassis
Front axleMcPherson-strut suspension McPherson-strut suspension
Rear axleMcPherson-strut suspension McPherson-strut suspension
SteeringVariable steering ratio, Variable steering ratio,
power-assisted (hydraulic) power-assisted (hydraulic)
Turning circle11. 1 m 11. 1 m
Brakes4-piston monobloc aluminium fixed 4-piston monobloc aluminium fixed
calipers front and rear, discs calipers front and rear, discs
internally vented and cross-drilled internally vented and cross-drilled
Vehicle stability systemPSM (with ABS 8.0) PSM (with ABS 8.0)
Wheels Front: 6.5J x 17 Front: 8J x 18
Rear: 8J x 17 Rear: 9J x 18
Tyres Front: 205/55 ZR 17 Front: 235/40 ZR 18
Rear: 235/50 ZR 17 Rear: 265/40 ZR 18
· 123 ·The new Cayman and the Cayman S |
Technical data
Cayman Cayman S
WeightsManual gearbox/ Tiptronic S Manual gearbox/ Tiptronic S
Unladen weight (DIN)1,300 kg/1,360 kg 1,350 kg/1,390 kg
Unladen weight (EC)* 1,375 kg/1,435 kg 1,425 kg/1,465 kg
Permissible gross weight1,620 kg/1,665 kg 1,630 kg/1,670 kg
Performance Manual gearbox/ Tiptronic S Manual gearbox/ Tiptronic S
Top speed258 km / h (160 mph)/ 275 km / h (171 mph)/
253 km / h (157 mph) 267 km / h (166 mph)
0 –100 km / h (0 – 62 mph) 6.1 secs/7.0 secs 5.4 secs/6.1 secs
Flexibility 80 –120 km / h
(50 –75 mph)6.9 secs/7.2 secs (in 4th gear) 6.6 secs/6.3 secs (in 5th/4th gear)
Flexibility 100 – 200 km / h
(62 –124 mph) 21.5 secs/22.1 secs (in 4th gear)18.0 secs/17.8 secs (in 5th/4th gear)
Fuel consumption/emissionsManual gearbox/ Tiptronic S Manual gearbox/ Tiptronic S
In accordance with 80 / 1268 /EC as valid at time of going to press
Urban in l / 100 km (mpg)13.8 (20.5)/14.9 (19.0) 15.3 (18.5)/16.3 (17.3)
Extra urban in l / 100 km (mpg)6.8 (41.5)/7.7 (36.7) 7.8 (36.2)/7.9 (35.8)
Combined in l / 100 km (mpg)9.3 (30.4)/10.1 (28.0) 10.6 (26.6)/11.0 (25.7)
CO2emissions (g /km)222/242 254/262
Dimensions /aerodynamics
Length4,341 mm 4,341 mm
Width1,801 mm 1,801 mm
Height1,305 mm 1,305 mm
Wheelbase2,415 mm 2,415 mm
Luggage compartment150 litres/260 litres 150 litres/260 litres
volume front /rear
Tank capacity (refill volume)64 litres 64 litres
Drag coefficient0.29/0.29 0.29/0.30
* The unladen weight (EC) complies with the relevant EC Directives and is valid for standard specification vehicles only.
Some optional equipment can increase this weight. The figure specified above includes 68 kg representing the driver and 7 kg for luggage.