Subaru 22B Engine Specifications
The Subaru 22B is a legendary engine known for its performance and engineering excellence. It was primarily designed for the Subaru Impreza WRX STI 22B, a limited-edition model that celebrated Subaru’s success in the World Rally Championship. Below are the detailed specifications of the 22B engine.
| Specification | Details |
|---|---|
| Engine Type | 2.2L Turbocharged Flat-4 (Boxer) |
| Displacement | 2,197 cc |
| Power Output | 280 hp (209 kW) @ 6,500 rpm |
| Torque | 368 Nm (271 lb-ft) @ 4,000 rpm |
| Compression Ratio | 8.0:1 |
| Fuel System | Multi-Point Fuel Injection |
| Turbocharger | IHI VF22 |
| Transmission | 6-Speed Manual |
| Drivetrain | AWD (All-Wheel Drive) |
| Weight | 1,350 kg (2,976 lbs) |
Engine Configuration
The Subaru 22B features a unique engine configuration that contributes to its distinctive performance characteristics. The flat-four (boxer) design offers several advantages:
- Lower Center of Gravity: The flat engine layout lowers the vehicle’s center of gravity, enhancing stability and handling.
- Reduced Vibration: The opposing pistons cancel out vibrations, resulting in a smoother operation.
- Compact Size: The engine’s design allows for a more compact engine bay, which can improve weight distribution.
The 22B’s turbocharged setup provides significant power and torque, making it suitable for both street and track use. The engine’s performance is further enhanced by its advanced fuel injection system and a high-performance turbocharger.
Key Features of the Engine Configuration
– Boxer Engine Design: The horizontally opposed layout provides a unique driving experience and contributes to the vehicle’s overall balance.
– Turbocharged Performance: The IHI VF22 turbocharger ensures that the engine delivers ample power across a wide RPM range.
– AWD System: The all-wheel-drive system maximizes traction and stability, making the 22B a formidable performer in various conditions.
Engine Oil Specifications & Service Intervals
Maintaining the Subaru 22B engine requires adherence to specific oil specifications and service intervals to ensure optimal performance and longevity.
Engine Oil Specifications
The choice of engine oil is crucial for the 22B’s performance. Below are the recommended specifications:
| Specification | Details |
|---|---|
| Oil Type | Synthetic Oil |
| Viscosity Rating | 5W-30 |
| Oil Capacity | 5.5 liters (5.8 quarts) |
| Oil Filter | Subaru OEM or equivalent |
Service Intervals
Regular maintenance is essential to keep the 22B engine running smoothly. The following service intervals are recommended:
- Oil Change: Every 5,000 km (3,100 miles) or every 6 months, whichever comes first.
- Oil Filter Replacement: Every oil change.
- Coolant Change: Every 30,000 km (18,600 miles) or every 2 years.
- Air Filter Replacement: Every 15,000 km (9,300 miles) or as needed.
- Spark Plug Replacement: Every 60,000 km (37,300 miles).
Conclusion
The Subaru 22B engine is a remarkable piece of engineering that combines power, efficiency, and a unique configuration. Understanding its specifications, configuration, and maintenance requirements is essential for enthusiasts and owners alike. By adhering to the recommended oil specifications and service intervals, owners can ensure that their 22B engine remains in peak condition, delivering the exhilarating performance that it is known for.
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