Crossover, 5 Doors, 5 Seats
9.6 l/100 km 24.5 US mpg
12.9 l/100 km 18.23 US mpg
7.7 l/100 km 30.55 US mpg
171 Hp @ 6000 rpm.
69.6 Hp/l
182 km/h 113.09 mph
2457 cm3
149.94 cu. in.
4, Boxer
All wheel drive (4x4),
4560 mm
179.53 in.
1780 mm
70.08 in.
1515 kg
3340 lbs.
| Brand | Subaru |
|---|---|
| Model | Forester (Crossover) |
| Version | Forester III |
| Engine version | 2.5 XS (171 Hp) E-4AT |
| Year production start | 2007 |
| Year production end | 2010 |
| Vehicle type | Crossover |
| Horsepower RPM | 171 Hp @ 6000 rpm. |
| Curb weight kg -lbs total |
1515 kg3340 lbs. |
| Overall length mm - inch |
4560 mm179.53 in. |
| Doors | 5 |
| Top Speed | 182 km/h 113.09 mph |
| Designation model | EJ253 |
|---|---|
| Cam configuration | DOHC |
| Engine position and orientation | Front, Longitudinal |
| Cylinders | 4 |
| Position of cylinders | Boxer |
| Displacement (liters) |
2457 cm3149.94 cu. in. |
| Eng. horsepower RPM | 171 Hp @ 6000 rpm. |
| Horsepower per litre | 69.6 Hp/l |
| Weight / horsepower kg/hp - hp/tons |
8.9 kg/Hp112.9 Hp/tonne |
| Weight / torque kg/Nm - Nm/tons | 6.6 kg/Nm, 151.2 Nm/tonne
6.6 kg/Nm151.2 Nm/tonne |
| Torque Nm RPM lb-ft RPM |
229 Nm @ 4400 rpm.168.9 lb.-ft. @ 4400 rpm. |
| Bore (mm in) |
99.5 mm3.92 in. |
| Stroke (mm in) |
79 mm3.11 in. |
| Compression ratio | 10 |
| Fuel delivery system | Multi-point indirect injection |
| Fuel type | Petrol (Gasoline) |
| Valvetrain | 4 |
| Engine aspiration | Naturally aspirated engine |
| Engine oil liters | quarts |
4.2 l4.44 US qt | 3.7 UK qt |
| Emission certification | Euro 4 |
| Powertrain architecture | Internal Combustion engine |
| Engine location | Front, Longitudinal |
| Drive configuration | All wheel drive (4x4) |
|---|---|
| Transmission | 5 |
| Front brakes | Ventilated discs |
|---|---|
| Rear brakes | Disc |
| Anti-lock brake system | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
|---|---|
| Turning diameter m - ft |
10.6 m34.78 ft. |
| Front suspension | Independent type McPherson |
|---|---|
| Rear suspension | Independent, spring |
| Wheels size | 225/55 R17 |
|---|
| Passengers seats | 5 |
|---|---|
| Trunk space min liter | cu. Ft. |
387 l13.67 cu. ft. |
| Overall length mm - inch |
4560 mm179.53 in. |
|---|---|
| Overall width mm -inch |
1780 mm70.08 in. |
| Overall height mm -inch |
1700 mm66.93 in. |
| Wheelbase mm - inch |
2615 mm102.95 in. |
| Track width front mm - inch |
1530 mm60.24 in. |
| Track width rear mm - inch |
1530 mm60.24 in. |
| Curb weight kg -lbs total |
1515 kg3340 lbs. |
|---|---|
| Gross weight kg -lbs total |
2000 kg4409.25 lbs. |
| Capacities kg - lbs |
485 kg1069.24 lbs. |
| Fuel tank liters | gallons |
60 l15.85 US gal | 13.2 UK gal |
| City l/100km - mpg |
12.9 l/100 km18.23 US mpg |
|---|---|
| Highway l/100 km - mpg |
7.7 l/100 km30.55 US mpg |
| Combined l/100 km - Mpg |
9.6 l/100 km24.5 US mpg |
| Autonomy km (combined use) | 625 |
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