Thursday, May 27, 2010
2011 Subaru Impreza STI Cosworth CS400
2011 Subaru Impreza STI Cosworth CS400 is the result of one of the most eagerly anticipated automotive collaborations in recent times. The production will be restricted to 75 cars. The Cosworth-tuned, turbocharged vehicle is one of the world's most accelerative hatchbacks.
The Subaru Impreza STI Cosworth CS400 powered by the renowned 2.5-litre turbocharged 'Boxer' engine is transformed to produce 33 per cent more power, drawing heavily on Cosworth's extensive Formula 1 experience. The engine, which drives all four wheels via a six-speed manual gearbox, boasts an impressive 400 ps and the new model reaches 62 mph in just 3.7 seconds, going on to cover a quarter mile in 12.75 seconds at a terminal speed of 107 mph. Top speed is limited to 155mph.
Offer some features an extensive range of Cosworth-engineered components in the engine, turbo system, exhaust, suspension, brakes and wheels, plus subtle improvements to the exterior and interior styling to create a truly distinctive high performance car with everyday hatchback practicality.
Other, as with all Impreza 'Boxer' engines, the STI Cosworth unit features twin overhead camshafts per cylinder bank (DOHC) plus an Active Valve Control System (AVCS) to deliver variable valve timing and enhance low-speed pulling power.
For marketed exclusively in the UK in right-hand drive form, the Subaru Impreza STI Cosworth CS400 is available in a choice of three exterior colours (Spark Silver, Dark Grey and San Remo Red), and is priced from £49,995 on-the-road.
TECHNICAL SPECIFICATIONS
Body and Chassis
- Five-door, five-seat hatchback, with all-steel unitary construction body shell. Longitudinally-mounted petrol boxer engines driving the front and rear wheels (AWD) via a six-speed manual transmission.
Engine
- STI 2.5-litre / 400 PS
- Name: Subaru Boxer
- Type: DOHC, horizontally opposed 'flat four'
- Capacity: 2.5-litres, 2457 cc
- Bore & Stroke : 99.5 x 79.0 mm
- Compression ratio: 8.2:1
- Max power: 400 PS (295 kW) @ 5,750 rpm
- Max torque: 542 Nm (400 lb.ft) @ 3,950 rpm
- Valves: 16 (4-per-cylinder) with Dual AVCS
- Fuel system: Multi-point injection
- Construction: Aluminium cylinder block and heads
- Emissions class: Euro Stage 5
Transmission
- Manual: Six-speed
- Gear Ratios
- Final Drive (rear): 3.900:1
Drivetrains
- Full-time all-wheel drive with centre differential and viscous coupling, plus Vehicle Dynamics Control, Rear limited-slip differential, Front limited-slip differential and Si-Drive adjustable centre differential
Suspension & Damping
- Front: Fully independent subframe-mounted MacPherson Struts, with Eibach coil springs and gas-filled Bilstein shock absorbers. Anti-roll stabiliser bar
- Rear: Fully independent subframe-mounted Multi-Link, Eibach coil springs and Bilstein gas-filled shock absorbers (adjustable) anti-roll bar
Steering
- Type: Electric power-assisted rack & pinion
- Gearing: 2.5 turns lock-to-lock
- Turning circle: 11.0 m
Brakes
- Front: 355 x 32 mm ventilated discs with 6-pot callipers
- Rear: 316 x 20 mm vented discs with single-pot callipers
- ABS: Four-Channel anti-lock system with EBD
Wheels & Tyres
- Alloy 18 x 8.5 inch, with 245 / 40 R18 directional tyres
Dimensions
- Overall length: 4,415 mm
- Overall width: 1,795 mm (excluding door mirrors)
- Overall height: 1,475 mm
- Wheelbase: 2,625 mm
- Front track: 1,530 mm
- Rear track: 1,540 mm
- Ground clearance: 140 mm
Capacities (all models)
Fuel tank: 60 litres
Luggage (VDA)
- 301 litres (rear seats up)
- 1,216 litres (rear seats down)
Weights
- Curb weight (min.): 1,505 kg
- Gross weight: 1,980 kg
Performance
- Top speed: 155 mph / 250 km/h (electronically limited)
- 0-62 mph / 0-100 km/h: 3.7 s
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