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Subaru Impreza WRX STi

(2003 model)

Brief specs of 2003 Subaru Impreza WRX STi

4-door 5-seater sedan (saloon), petrol (gasoline) 4-cylinder 16-valve flat (horizontally opposed, boxer) engine, DOHC (double overhead camshafts, twin cam), 1994 cm3 / 121.7 cu in / 121.7 cu in, 194.6 kW / 261.0 hp / 261.0 hp @ 6000 rpm / 6000 rpm / 6000 rpm, 343.0 N·m / 253.0 lb·ft / 253.0 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, manual 6-speed transmission, all wheel drive, 244 km/h / 152 mph / 152 mph top speed, consumption 11.1 l/100km / 25.4 mpg-UK / 21.2 mpg-US

units: metric UK US

Basic (general) data

Marque (make)SubaruIssued from2003
ModelImpreza WRX STiIssued until
SerieImprezaNumber made
Model familyBody construction
Model codeBody designation
ManufacturerFuji Heavy Industries Co. Ltd.CountryJP

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4415 mm / 173.8 in / 173.8 inTotal (curb) weight1470 kg / 3241 lb / 3241 lb
Width1740 mm / 68.5 in / 68.5 inDry weight
Height1440 mm / 56.7 in / 56.7 inLoad capacity
Wheelbase2525 mm / 99.4 in / 99.4 inGross (max.) weight
Track front1490 mm / 58.7 in / 58.7 inTowing weight
Track rear1480 mm / 58.3 in / 58.3 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.75  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.33Frontal area (A)2.13 m2 / 22.9 sq ft / 22.9 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.70 m2 / 7.6 sq ft / 7.6 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)17.5 kW / 23.4 hp / 23.4 hp (est.)

Engine

Engine CodeEJ20Total number of cylinders4
Engine Typeflat (horizontally opposed, boxer) Total number of valves16
Engine ManufacturerSubaruValves per cylinder4
Engine constructionBore92.0 mm / 3.62 in / 3.62 in
Fuelpetrol (gasoline)Stroke75.0 mm / 2.95 in / 2.95 in
Fuel detailsBore/Stroke ratio1.23
Fuel supplyMPFiEngine displacement1994 cm3 / 121.7 cu in / 121.7 cu in
Engine Main bearingsUnitary capacity498.50 cm3/cylinder / 30.420 cu in/cylinder / 30.420 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio8.0 : 1
SumpMax. output power194.6 kW / 261.0 hp / 261.0 hp at 6000 rpm / 6000 rpm / 6000 rpm
AspirationturbochargedMax. torque343.0 N·m / 253.0 lb·ft / 253.0 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeMaximum rpm
IntercoolerMax. net output (power at the wheels)119.4 kW / 160.1 hp / 160.1 hp (est.)
CoolantwaterSpecific output97.6 kW/l / 2.145 bhp/cu in / 2.145 bhp/cu in
Catalytic converteryesSpecific torque172.0 N·m/l / 1.50 lb·ft/cu in / 1.50 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears6
Wheel driveall wheel driveTop gear (drive) ratio0.76
  Final gear (drive) ratio3.9

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed244 km/h / 152 mph / 152 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio177.6 kW/ton / 134.5 bhp/ton / 134.5 bhp/ton
Acceleration 0-100 km/h5.20 s / 5.20 s / 5.20 sFuel consumption, City (urban)15.5 l/100km / 18.2 mpg-UK / 15.2 mpg-US
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)8.5 l/100km / 33.2 mpg-UK / 27.7 mpg-US
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)11.1 l/100km / 25.4 mpg-UK / 21.2 mpg-US
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions265 g/km / 426 g/mi / 426 g/mi
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrack & pinion VPASSteering details
Turns lock-to-lock2.6Turning circle
Suspension frontIndependent, MacPherson strut, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent,S, Trailing arm,2 Links, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels front7.5 x 17Wheels rear7.5 x 17
Tyres front225/45 R 17Tyres rear225/45 R 17
Brakes frontventilated discBrakes rearventilated disc
Brake diameter front330 mm / 13.0 in / 13.0 inBrake diameter rear305 mm / 12.0 in / 12.0 in
Brakes detailsservo-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of Subaru Impreza WRX STi

Infobox

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