BMW B58 Engine: Specifications and FAQs
b58 engine bmw, BMW is renowned for producing high-performance, reliable engines, and the B58 engine is one of the latest and most popular additions to their lineup. This 3.0-liter inline-6 engine has garnered attention for its impressive balance of power, efficiency, and smooth operation. In this article, we’ll break down the specifications of the B58 engine, how it performs in BMW models, and answer some frequently asked questions about it.
BMW B58 Engine Overview
The B58 is part of BMW’s “modular engine” family, introduced in 2015 as a successor to the older N55 engine. The B58 is a 3.0-liter, turbocharged, inline-6 engine that is used in a variety of BMW models, including the 3 Series, 4 Series, 5 Series, and Z4. It offers a blend of efficiency, power, and driving pleasure, with significant improvements over previous engines in the same class.
B58 Engine Specifications
- Engine Type:
- Inline-6
- 60° cylinder angle
- Displacement:
- 3.0 liters (2,998 cc)
- Bore x Stroke:
- 82 mm x 94.6 mm
- Compression Ratio:
- 11.0:1
- Fuel Type:
- Gasoline
- Turbocharged:
- Yes, single twin-scroll turbocharger
- Cooling System:
- Water-cooled with a water-to-air intercooler
- Maximum Power Output:
- 322 hp (240 kW) at 5,800–6,000 rpm
- Maximum Torque:
- 330 lb-ft (450 Nm) at 1,380–5,000 rpm
- Fuel Consumption:
- Combined: ~25 mpg (depending on the model and driving conditions)
- Emissions:
- Euro 6/ULEV compliance
- Turbocharger:
- Twin-scroll turbo for quicker spool-up and improved efficiency
- Fuel Injection:
- Direct injection
- Cooling:
- Integrated water-to-air intercooler to enhance turbo efficiency
Performance in Different BMW Models
The B58 engine is widely used in many BMW vehicles, offering varying levels of performance depending on the model and tuning. Below are some examples of how the engine performs across BMW’s lineup:
- BMW 340i (F30/F31)
- Power: 322 hp
- Torque: 330 lb-ft
- 0-60 mph: 5.1 seconds
- Top Speed: 155 mph (electronically limited)
- BMW Z4 M40i
- Power: 382 hp
- Torque: 369 lb-ft
- 0-60 mph: 4.4 seconds
- Top Speed: 155 mph
- BMW 540i (G30)
- Power: 335 hp
- Torque: 330 lb-ft
- 0-60 mph: 4.6 seconds
- Top Speed: 155 mph (electronically limited)
- Toyota Supra GR (A90)
- Power: 335 hp
- Torque: 365 lb-ft
- 0-60 mph: 4.1 seconds
- Top Speed: 155 mph
The engine is designed to work seamlessly with BMW’s rear- or all-wheel-drive systems, providing an exhilarating and balanced driving experience. It pairs well with the ZF 8-speed automatic transmission, which further enhances its performance and efficiency.
Benefits of the BMW B58 Engine
- Power & Torque: The B58 offers an impressive balance of horsepower and torque, allowing BMW vehicles equipped with it to deliver exhilarating acceleration and high top speeds.
- Smooth Operation: The inline-6 layout of the B58 engine provides a naturally smooth power delivery, contributing to better refinement compared to 4-cylinder engines.
- Turbocharged Efficiency: The B58’s single twin-scroll turbocharger improves efficiency and reduces turbo lag, offering a quick throttle response.
- Fuel Economy: Despite its high output, the B58 is known for reasonable fuel economy in its class, achieving around 25 mpg combined.
- Reliability: BMW’s engineering excellence means that the B58 is known for its reliability and durability. It benefits from a modern design that includes a lightweight aluminum block, advanced cooling systems, and efficient turbocharging.
- Modular Design: As part of BMW’s modular engine family, the B58 is used in a wide variety of models, which results in lower production costs and enhanced availability of parts.
Frequently Asked Questions (FAQs)
1. What BMW models use the B58 engine?
- The B58 engine can be found in numerous BMW models, including the BMW 3 Series (340i), 5 Series (540i), Z4 M40i, and even the Toyota GR Supra.
2. How much horsepower does the B58 engine produce?
- The B58 engine produces around 322 horsepower in its base form, with some tuned variants (like in the Z4 M40i) generating up to 382 horsepower.
3. What is the torque rating of the B58 engine?
- The B58 engine delivers up to 330 lb-ft of torque, which provides excellent low-end grunt and mid-range power for quick acceleration.
4. Is the B58 engine reliable?
- Yes, the B58 engine is considered reliable, with BMW’s advanced engineering minimizing the chances of issues like turbo lag or overheating. Regular maintenance and care will ensure its longevity.
5. How does the B58 compare to the N55 engine?
- The B58 is a more refined and efficient engine compared to the older N55. It offers improved power delivery, better fuel economy, and a smoother, more responsive driving experience. Additionally, the B58 features a more modern turbocharging system that enhances efficiency.
6. What is the fuel consumption of the BMW B58?
- The fuel consumption for the B58 engine is around 25 mpg combined, depending on the model and driving conditions. This is relatively good for an engine of its size and performance.
7. How fast can the BMW equipped with the B58 engine go?
- Cars equipped with the B58 engine can reach top speeds of around 155 mph (electronically limited), with 0-60 mph times ranging from 4.1 to 5.1 seconds, depending on the specific vehicle.
8. Can the B58 engine be tuned for more power?
- Yes, the B58 engine is highly tunable, with many aftermarket performance parts and tuning options available to increase horsepower and torque. Aftermarket chips, intakes, and exhausts can increase output.
9. Is the B58 engine available in electric models or hybrids?
- Currently, the B58 is a gasoline engine and is not directly used in hybrid or electric BMW models. However, it is part of BMW’s “modular” engine family, which may be used in some hybrid configurations in the future.
Conclusion
The BMW B58 engine stands as a testament to modern engineering, delivering a perfect combination of power, efficiency, and reliability. Its performance and smooth operation make it a sought-after engine in BMW’s lineup, powering everything from the sporty Z4 M40i to the practical 540i. Whether you’re looking for an everyday driver or a high-performance vehicle, the B58 engine offers a thrilling and reliable experience.
