Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019

Key specs

Subaru WRX (Sedan) WRX STI (facelift 2018) 2019,2020,2021,2022,2023,2024

What is the body type, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

Sedan, 4 Doors, 5 Seats

What is the fuel economy, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

10.6 l/100 km 22.19 US mpg

How much power, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

309 Hp @ 6400 rpm.
155 Hp/l

What is the engine size, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

1994 cm3
121.68 cu. in.

How many cylinders, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

4, Boxer

What is the drivetrain, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

All wheel drive (4x4),

How long is this vehicle, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

4595 mm
180.91 in.

How wide is the vehicle, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

1795 mm
70.67 in.

What is the curb weight, Subaru WRX STI (facelift 2018) EJ20 Final Edition 2.0 (309 Hp) AWD 2019?

1500 kg
3306.93 lbs.

Subaru WRX (Sedan) WRX STI (facelift 2018) 2019,2020,2021,2022,2023,2024 Specs

General information

Brand Subaru
Model WRX (Sedan)
Version WRX STI (facelift 2018)
Engine version EJ20 Final Edition 2.0 (309 Hp) AWD
Year production start 2019
Vehicle type Sedan
Horsepower RPM 309 Hp @ 6400 rpm.
Curb weight kg -lbs total

1500 kg

3306.93 lbs.
Overall length mm - inch

4595 mm

180.91 in.
Doors 4

Engine specs

Designation model EJ20F
Cam configuration DOHC, AVCS
Engine position and orientation Front, Longitudinal
Cylinders 4
Position of cylinders Boxer
Displacement (liters)

1994 cm3

121.68 cu. in.
Eng. horsepower RPM 309 Hp @ 6400 rpm.
Horsepower per litre 155 Hp/l
Weight / horsepower kg/hp - hp/tons

4.9 kg/Hp

206 Hp/tonne
Weight / torque kg/Nm - Nm/tons 3.6 kg/Nm, 281.3 Nm/tonne

3.6 kg/Nm

281.3 Nm/tonne
Torque Nm RPM lb-ft RPM

422 Nm @ 4400 rpm.

311.25 lb.-ft. @ 4400 rpm.
Bore (mm in)

92 mm

3.62 in.
Stroke (mm in)

75 mm

2.95 in.
Compression ratio 8
Fuel delivery system Multi-point indirect injection
Fuel type Petrol (Gasoline)
Valvetrain 4
Engine aspiration Twin-Turbo, Intercooler
Engine oil liters | quarts

5.1 l

5.39 US qt | 4.49 UK qt
Engine coolant

8.1-8.4 l

8.56 - 8.88 US qt | 7.13 - 7.39 UK qt
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

11.2 m

36.75 ft.

Suspension

Front suspension Independent, spring
Rear suspension Double wishbone

Body / Chassis

Wheels & Tyres

Wheels size 245/35 R19
Wheels rims 8.5J x 19

Exterior

Interior

Safety and Security

Passenger

Passengers seats 5

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.
Gross weight kg -lbs total

1775 kg

3913.21 lbs.
Capacities kg - lbs

275 kg

606.27 lbs.
Fuel tank liters | gallons

60 l

15.85 US gal | 13.2 UK gal

Fuel economy

Combined l/100 km - Mpg

10.6 l/100 km

22.19 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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