Subaru WRX STI 2.5 (300 Hp) AWD 2014

Key specs

Subaru WRX (Sedan) WRX STI 2014,2015,2016,2017

What is the body type, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

Sedan, 4 Doors, 5 Seats

What is the fuel economy, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

10.4 l/100 km 22.62 US mpg
14 l/100 km 16.8 US mpg
8.4 l/100 km 28 US mpg

How much power, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

300 Hp @ 6000 rpm.
122.1 Hp/l

How fast is the car, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

255 km/h 158.45 mph

What is the engine size, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

2457 cm3
149.94 cu. in.

How many cylinders, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

4, Boxer

What is the drivetrain, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

All wheel drive (4x4),

How long is this vehicle, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

4595 mm
180.91 in.

How wide is the vehicle, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

1795 mm
70.67 in.

What is the curb weight, Subaru WRX STI 2.5 (300 Hp) AWD 2014?

1500 kg
3306.93 lbs.

Subaru WRX (Sedan) WRX STI 2014,2015,2016,2017 Specs

General information

Brand Subaru
Model WRX (Sedan)
Version WRX STI
Engine version 2.5 (300 Hp) AWD
Year production start 2014
Year production end 2017
Vehicle type Sedan
Horsepower RPM 300 Hp @ 6000 rpm.
Acceleration 0 - 100 kmh sec 5.2 sec
Curb weight kg -lbs total

1500 kg

3306.93 lbs.
Overall length mm - inch

4595 mm

180.91 in.
Doors 4
Top Speed 255 km/h 158.45 mph

Engine specs

Designation model EJ257
Cam configuration DOHC
Engine position and orientation Front, Longitudinal
Cylinders 4
Position of cylinders Boxer
Displacement (liters)

2457 cm3

149.94 cu. in.
Eng. horsepower RPM 300 Hp @ 6000 rpm.
Horsepower per litre 122.1 Hp/l
Weight / horsepower kg/hp - hp/tons

5 kg/Hp

200 Hp/tonne
Weight / torque kg/Nm - Nm/tons 3.7 kg/Nm, 271.3 Nm/tonne

3.7 kg/Nm

271.3 Nm/tonne
Torque Nm RPM lb-ft RPM

407 Nm @ 4000 rpm.

300.19 lb.-ft. @ 4000 rpm.
Bore (mm in)

99.5 mm

3.92 in.
Stroke (mm in)

79 mm

3.11 in.
Compression ratio 8.2
Fuel delivery system Multi-point indirect injection
Fuel type Petrol (Gasoline)
Valvetrain 4
Engine aspiration Turbocharger, Intercooler
Engine oil liters | quarts

4.3 l

4.54 US qt | 3.78 UK qt
Engine coolant

7.7 l

8.14 US qt | 6.78 UK qt
Emission certification Euro 6
Powertrain architecture Internal Combustion engine
Engine location Front, Longitudinal

Transmission and Drive system

Drive configuration All wheel drive (4x4)
Transmission 6

Brakes

Front brakes Ventilated discs
Rear brakes Ventilated discs
Anti-lock brake system ABS (Anti-lock braking system)

Steering

Steering type Steering rack and pinion
Turning diameter m - ft

11 m

36.09 ft.

Suspension

Front suspension Independent type McPherson
Rear suspension Double wishbone

Body / Chassis

Wheels & Tyres

Wheels size 245/40 R18
Wheels rims 8.5J x 18

Exterior

Interior

Safety and Security

Passenger

Passengers seats 5
Trunk space min liter | cu. Ft.

460 l

16.24 cu. ft.

Dimensions

Overall length mm - inch

4595 mm

180.91 in.
Overall width mm -inch

1795 mm

70.67 in.
Overall height mm -inch

1475 mm

58.07 in.
Wheelbase mm - inch

2650 mm

104.33 in.
Track width front mm - inch

1530 mm

60.24 in.
Track width rear mm - inch

1540 mm

60.63 in.

Weights

Curb weight kg -lbs total

1500 kg

3306.93 lbs.
Fuel tank liters | gallons

60 l

15.85 US gal | 13.2 UK gal

Fuel economy

City l/100km - mpg

14 l/100 km

16.8 US mpg
Highway l/100 km - mpg

8.4 l/100 km

28 US mpg
Combined l/100 km - Mpg

10.4 l/100 km

22.62 US mpg
Autonomy km (combined use) 600

Engine type

4 CYLINDER - BOXER
What engine is the 4 cylinder boxer: the boxer-four is an engine where each pair
of opposed pistons moves inwards and outwards at the same time in two banks of
cylinders lying on opposite sides of a common crankshaft, named laso flat-four
or opposed-four.

What is the 4 cylinder boxer displacement: it is in a range between 1350 cc and
3000 cc in recent model line up powertrain.

How much is the power of the 4 cylinders boxer: the power of the 4 cylinders is
in a range from 98bhp to 365 bhp.Which cars use 4 cylinder boxer engine: 4 boxer is used by Porsche and Subaru but it has a strong heritage in powertrain production as have been used in cars by Volkswagen on the original iconic Beetle and Alfa Romeo.

The advantages of the boxer-four layout are perfect secondary vibration (resulting in minimal vibration), low centre of gravity and a short engine length. The layout also lends itself to efficient air cooling with the airflow being evenly distributed across the four cylinders. The downsides of boxer-four engines (compared with inline-four engines) are extra width, higher costs due to two cylinder heads instead of one and the long exhaust manifold required to achieve evenly spaced exhaust pulses.

The typical firing order for a boxer-four engine is for the left bank of cylinders to ignite one after another, followed by the right bank of cylinders with the firing interval evenly spaced at 180 degrees. The exhausts manifold from the two cylinders on each bank were merged and in result uneven exhaust pulses causing a characteristic "flat-four burble" exhaust sound as on Porsche 982 and 718 series with boxer 4.

The engine fires once every 180 degrees crankshaft angle (720 degrees divided by 4 = 180 degrees) and other common firing configuration (such as used by Subaru since the mid-2000s) is to pair the cylinders, with a firing interval of 360 degrees, in order to optimise the exhaust pulses. This configuration requires long exhaust manifolds to pair the cylinders on opposite banks and results in a less distinctive exhaust sound.

edited by arrabbiata

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