Glückliche Leut, die Australier: Der STi ist schon dort.
In der Beschreibung des STi finden sich einige Details (Messwerte), die ich bisher noch nirgends gelesen habe.
Gruss und viel Spass
Walter
Thursday December 13 2001
Subaru has launched its new WRX STi, claiming it is set to become the
best-value high performance car on the Australian market.
The Impreza WRX STi gets an impressive specification list combined with
performance that Subaru says is unmatched at the price.
Maximum power is 195kW at 6,000rpm and maximum torque is 343Nm at
4,000rpm.
Performance is said to be suitably impressive, with claimed 0-100kmh
acceleration in 5.45 seconds and 0-400 metres in 13.64s. Engine speed is
restricted to 235kmh.
While only available in limited numbers, the WRX STi is now a permanent
part of Subaru's Australian range.
"Impreza WRX STi is the essence of Subaru's high performance
engineering," says Subaru Australia's general manager, Nick Senior.
"It's not only quick, it's got a tremendous specification list and
possesses the intrinsic engineering quality and active and passive
safety that has made the entire Impreza range the benchmark in its
class.
"This is a delightful car to drive, with great balance, poise,
performance and safety. It is further proof that Subaru is a performance
car specialist."
Mr Senior said the Impreza WRX STi offers performance previously only
available on cars costing many thousands of dollars more, while it is
also user-friendly, including features such as cruise control.
Available colours are WR Blue mica, Blue Black mica, Pure White and
Premium Silver metallic.
Subaru anticipates 50 Impreza WRX STi sales a month.
Like its performance, the STi's technical story is impressive. The high
strength engine block features:
. Semi-closed deck design, providing reinforcement around cylinder tops,
while maintaining the cooling advantage of a full open deck design.
. Forged pistons, for heightened durability and strength under high
thermal loads.
. Connecting rod construction draws on new design and manufacturing
processes introduced in Subaru's H6-3.0 engine, used in the Outback H6.
. Hollow inlet valves reduce valve train inertia, enabling the valves to
follow the camshaft profile even at high engine speeds.
. Sodium-filled exhaust valves dissipate heat from the exhaust valve
head.
. An engine oil cooler is located between the oil filter and engine
block.
Turbocharger and intercooler
According to Subaru, the IHI turbocharger features an A/R ratio of 15
which, in conjunction with the Active Valve Control System, provides the
optimum in volumetric efficiency. (The A/R ratio of the turbocharger
determines the characteristics of exhaust gas pressure production. 'A'
represents the smallest area of the inlet of the turbine housing and 'R'
represents the distance from the centre of the turbine shaft to the
centre of the turbine-housing inlet).
A 15mm-taller bonnet scoop feeds air into the intercooler, which is 39
percent larger than that in the standard Impreza WRX. Subaru says this
reduces any restriction in the airflow. A driver-controlled water spray
can be used to further lower intake air temperature under extreme
conditions, for example when accelerating from low speed, when airflow
through the intercooler is at a minimum.
Clutch
The high performance hydraulically operated clutch has 930 kilograms of
clamping force, providing positive power to the six-speed close ratio
transmission.
Transmission
The six-speed constant mesh close ratio transmission features double
synchroniser mechanisms on first, third and reverse gears, while second
gear is equipped with a triple synchroniser mechanism.
The synchronisers provide consistent gearshift performance.
The transmission has large gears and bearings for added strength, while
a positive lubrication system, using a vehicle speed-driven oil pump,
increases durability.
The transmission features Subaru's centre differential with viscous
coupling, used on all its manual transmission vehicles, to provide 50:50
front and rear torque split to the all-wheel-drive system.
Front and rear LSDs
The Suretrac torque-sensing limited slip differentials is a gearless
mechanical system which works under engine load to transfer torque to
the wheel with most traction.
The rear diff is a large R180 item, compared to the R160 of the standard
Impreza WRX.
Suspension
The set-up is an inverted KYB system which includes heavy-duty springs.
The inverted shock absorbers have damping rates matched to the spring
rates. The advantage of the inverted shocks, Subaru says, is that
suspension geometry is maintained even during the hardest cornering,
thus maintaining maximum tyre contact with the road.
Brakes
Brembo brakes are 326mm 4-pot fronts and 316mm 2-pot rears. They're
linked to Subaru's sports anti-lock braking system which features
Electronic Brake-Force Distribution (EBD). When cornering forces above a
set level are detected and the rear ABS activates, the brake force of
each rear wheel is controlled independently, providing maximum braking
force.
Other technical features
The STi gets a power steering oil cooler to maintain viscosity of power
steering fluid under extreme operating conditions.
The adjustable revolution warning that can be set by the driver to act
as an automatic reminder to alert the driver of a preferred gearchange
point.
Safety
Body strengthening for extra side protrusion protection include the
front side frames, A-pillars, inner side sills, floor frames, B-pillars
and front doors.
Other features are front dual airbags, front pre-tensioner seat belts
and three rear lap sash seat belts with Automatic Emergency Locking
Retractors (A/ELR).
Interior
The sports interior includes STi blue and black bucket seats with the
STi logo and door trim inserts.
The STi-style instrument cluster includes a centre-mounted tachometer.
Cruise control is standard, plus dual trip meters and outside
temperature display.
Adding to the STi "look" is red stitching on the Momo leather steering
wheel, gear knob and handbrake lever. There's also an STi gearshift
surround.
A window-integrated radio aerial is also standard.
Exterior
The grille design is unique to the model and includes the STi logo.
There's a weight-saving aluminium bonnet and a rear spoiler that forms
part of the sports body kit.
Headlights are clear free-form quad units which are integrated with the
indicators.
Wheels are gold-coloured 17-inch five-spoke alloys.
In-car entertainment
A six-CD in-dash stacker, AM/FM tuner, cassette and six are standard.
Security
A keypad immobiliser and alarm system are standard. The remote central
locking is integrated with hazard lights that flash once when the car is
locked and twice when unlocked.
Impreza WRX STi technical specifications
Engine
Type: Horizontally opposed
Cylinders: Four
Displacement: 1994cc
Bore x stroke: 92.0 x 75.0mm
Compression ratio: 8.0:1
Cam-train system: DOHC single-toothed belt with auto adjuster
Fuel system: Multi-point fuel injection - sequential
Maximum power: 195kW/6000rpm
Maximum torque: 343Nm/4000rpm
Dimensions
Overall length: 4405mm
Overall width: 1730mm
Overall height: 1440mm
Interior length: 1890mm
Interior width: 1380mm
Interior height: 1180mm
Wheelbase: 2525mm
Tread - front: 1490mm
Tread - rear: 1480
Min. ground clearance: 155
Unladen mass: 1470kg with full fuel tank
Fuel consumption (L/100km):
Highway: 9.2
City: 13.0
Combined: 11.29
Fuel tank capacity: 60 litres
Minimum fuel requirement: 98 RON for full power
Steering: Engine speed sensitive power rack and pinion
Minimum turning circle: 11 metres
Suspension:
Front: MacPherson strut type with KYB inverted dampers, independent,
coil spring
Rear: Multi-link type, independent, coil spring
Brakes:
Front: 326mm ventilated discs with 4-pot Brembo calipers
Rear: 316mm ventilated discs with 2-pot Brembo calipers
Tyres: Bridgestone Potenza RE040 225/45R17
Gear ratios
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 1.062
6th - 0.842
Reverse - 3.545
Front reduction gear - 3.9
Rear reduction gear - 3.9
Freitag, 26. April 2024, 02:37
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