Genuine BMW S54 Engine 11117838751

BMW S54 Engine

The BMW S54 engine is a high-performance inline-six engine developed by BMW's M division. Known for its robust construction, high-revving nature, and exceptional power output, the S54 is widely regarded as one of the most iconic engines produced by BMW.

Stock Performance

The S54 engine is renowned for its impressive performance characteristics:

- Displacement: 3.2 liters (3246 cc)
- Configuration: Inline-six
- Power Output: Approximately 333 horsepower (252 kW) at 7,900 rpm
- Torque: 262 lb-ft (355 Nm) at 4,900 rpm
- Redline: 8,000 rpm
- Compression Ratio: 11.5:1

This engine is naturally aspirated and features a high-revving design that provides strong power delivery throughout the rpm range. It incorporates advanced technologies such as double VANOS (variable valve timing), individual throttle bodies, and a lightweight forged crankshaft.

Models and Production Years

The BMW S54 engine was primarily used in the following models:

1. E46 M3 (2000-2006)
   - Coupe and Convertible variants
2. E85 Z4 M Roadster (2006-2008)
3. E86 Z4 M Coupe (2006-2008)
4. E36/7 Z3 M Roadster (2001-2002)
5. E36/8 Z3 M Coupe (2001-2002)

Key Features and Technology

- Double VANOS: BMW's variable valve timing system, which enhances performance and efficiency across different engine speeds.
- Individual Throttle Bodies (ITBs): Each cylinder has its own throttle body, improving throttle response and power output.
- Lightweight Components: The engine uses a lightweight forged crankshaft and other high-strength components to reduce weight and improve reliability.
- High Redline: With an 8,000 rpm redline, the S54 is capable of delivering exhilarating performance at high engine speeds.

Maintenance and Reliability

The S54 engine, while high-performing, requires diligent maintenance to ensure longevity and reliability. Key areas of attention include:

- Valve Adjustments: Regular valve adjustments are crucial due to the solid lifter design.
- Rod Bearings: Known for wear issues, rod bearings should be inspected and replaced as part of preventive maintenance.
- Cooling System: Proper maintenance of the cooling system is essential to prevent overheating and potential engine damage.
- Oil Changes: Frequent oil changes with high-quality synthetic oil are recommended to maintain engine health.