The Ultimate Guide to S55 Engines: Performance, Options, and Buying Insights
The BMW S55 engine has become a favorite among automotive enthusiasts, particularly for its application in high-performance models like the M2, M3, and M4. Known for its impressive power and advanced engineering, the S55 has a lineage that combines the best of BMW’s performance heritage with modern technology. In this guide, we’ll delve into the various options available for purchasing S55 engines, their specifications, and insights on performance upgrades.
S55 Engine Types and Applications Comparison
| Engine Type | Application | Power Output | Torque | Warranty |
|---|---|---|---|---|
| Complete Performance | M2, M3, M4 | Up to 850 hp | 850 lb-ft | Varies (up to 2 years) |
| Preowned/Used | M Series (M2, M3, M4) | 425-503 hp | 406-479 lb-ft | 3-month warranty |
| High-Performance Build | Custom builds for M Series | Varies | Varies | Up to 2 years |
| OEM Replacement | Various BMW models | OEM specs | OEM specs | 2+ years unconditional |
Understanding the S55 Engine
The BMW S55 is a 3.0-liter twin-turbocharged inline-six engine that debuted in 2014. It is renowned for its robust construction and high-performance capabilities, making it a top choice for both street and racing applications. The engine features advanced technologies such as a closed-deck block and lightweight components, which contribute to its impressive performance metrics.
Key Features of the S55 Engine
The S55 engine is engineered for high-performance applications, with specific features that enhance its capabilities:
- Twin-Turbochargers: The twin-turbo setup allows for quick spool times and significant power gains, making the engine responsive across various RPM ranges.
- High-Pressure Fuel System: This fuel system optimizes combustion efficiency, leading to better performance and fuel economy.
- Advanced Cooling Systems: These help maintain optimal operating temperatures, crucial for high-performance driving scenarios.
Performance Upgrades for the S55 Engine
If you’re looking to enhance the performance of your S55 engine, several options are available. Many aftermarket companies, such as CarBahn and Performance Eurowerks, offer custom tuning and performance upgrades tailored to the S55.
Common Performance Upgrades
- ECU Tuning: Remapping the engine’s ECU can unlock additional horsepower and torque without significant hardware changes.
- Exhaust Systems: Upgrading to a high-performance exhaust system can improve airflow and sound, enhancing engine performance.
- Intake Systems: A performance intake can increase air flow to the engine, improving combustion and power output.
Custom Builds
For those seeking extreme performance, custom builds are available, often developed by specialists like Performance Eurowerks. These builds can include upgraded internals such as:
- Forged Pistons: Improve durability and allow for higher boost levels.
- High-Performance Crankshafts: Enhance engine response and power delivery.
Buying an S55 Engine
When considering purchasing an S55 engine, whether new or used, there are several factors to consider.
New vs. Used Engines
New Engines
- Pros: Reliability, warranty coverage, and performance predictability.
- Cons: Higher cost and longer wait times for custom builds.
Used Engines
- Pros: Cost-effective and readily available options. Companies like Auto Techio and Quarry Motors offer well-maintained used engines.
- Cons: Potential hidden issues and shorter warranty periods.
Where to Buy
- CarBahn: Known for high-performance builds and complete engines.
- Auto Techio: Offers OEM certified pre-owned engines with a solid warranty.
- Quarry Motors: Specializes in used S55 engines with a rigorous testing process.
Technical Features Comparison
| Feature | CarBahn | Auto Techio | Performance Eurowerks | Quarry Motors |
|---|---|---|---|---|
| Engine Type | Performance Builds | Pre-owned OEM | Custom Builds | Used Engines |
| Power Output | Up to 850 hp | OEM specs | Varies | 425-503 hp |
| Torque | 850 lb-ft | OEM specs | Varies | 406-479 lb-ft |
| Warranty | Up to 2 years | 2+ years unconditional | Varies | 3-month warranty |
| Customization Options | Extensive | Limited to OEM refurbishments | Highly customizable | Limited |
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Conclusion
The BMW S55 engine is a remarkable powerplant that combines advanced engineering with high performance. Whether you’re in the market for a new, used, or custom-built engine, understanding your options and the various performance upgrades available can enhance your driving experience. Companies like CarBahn, Auto Techio, and Quarry Motors provide a range of choices to suit your needs, whether you seek reliability or extreme performance.
FAQ
What is the BMW S55 engine?
The BMW S55 is a 3.0-liter twin-turbocharged inline-six engine used in high-performance models like the M2, M3, and M4, known for its powerful output and advanced technology.
Where can I buy an S55 engine?
You can purchase an S55 engine from various sources, including CarBahn, Auto Techio, and Quarry Motors, which offer new, used, and performance-focused options.
How much horsepower does the S55 engine produce?
The S55 engine produces between 425 to 503 horsepower, depending on the specific model and configuration.
What are common performance upgrades for the S55 engine?
Common upgrades include ECU tuning, high-performance exhaust systems, and upgraded intake systems, as well as custom builds with forged internals.
Is it better to buy a new or used S55 engine?
This depends on your budget and needs; new engines offer reliability and warranties, while used engines can be more cost-effective but may carry risks.
What warranties are offered with used S55 engines?
Warranties for used S55 engines vary by seller. Auto Techio offers up to 2 years, while Quarry Motors provides a 3-month warranty.
Can I customize my S55 engine?
Yes, many companies, including Performance Eurowerks and CarBahn, offer extensive customization options for performance builds.
What is the average cost of an S55 engine?
Costs can vary widely based on condition and specifications, typically ranging from several thousand to over ten thousand dollars.
What are the key features of the S55 engine?
Key features include a twin-turbo setup, high-pressure fuel system, and advanced cooling systems, all contributing to its performance capabilities.
How do I know if a used S55 engine is reliable?
Check the seller’s reputation, warranty options, and whether the engine has undergone comprehensive testing or refurbishment, like those offered by Quarry Motors.
