BMW S85 Engine For Sale

As the S85 was BMW's first V10 engine, it was given a new series in the BMW's engine codes. The "60s" were used for V8 engines and the "70s" were used for V12 engines, therefore the V10 was allocated in the "80s" (despite having fewer cylinders than the V12 engines in the "70s". The engine code for the related BMW S65 V8 engine reflects its link to the S85. The S65 code was selected to signify that the V8 is largely derived from the S85 minus two cylinders, and not related to BMW's other V8s. The S85 has dual overhead camshafts with four valves per cylinder and double-VANOS (variable valve timing). The engine block and cylinder head are constructed from aluminum alloy. Peak power is 373 kW (500 bhp) at 7,750 rpm and peak torque is 520 N⋅m (384 lb⋅ft) at 6,100 rpm.[6] The redline is 8,250 rpm, and the specific output of 74.6 kW (100.0 bhp) per litre is amongst the highest of naturally aspirated production car engines.  

BMW S85 Engine: An In-Depth Look at the Ultimate Driving Machine

If you're a BMW enthusiast, then you've probably heard of the S85 engine. It's one of the most powerful and high-performance engines ever built by BMW, and it's used in some of the brand's most iconic cars. In this article, we'll take a closer look at the S85 engine, its history, specifications, and performance.

1. Introduction

The BMW S85 engine is a high-performance V10 engine that was first introduced in 2005. It was designed for use in BMW's M5 and M6 models, and it quickly gained a reputation as one of the best engines ever produced by BMW. The S85 engine is powerful and efficient, combining advanced technology with raw power to deliver an unforgettable driving experience.

2. The History of the S85 Engine

The S85 engine was developed by BMW's Motorsport division, which is responsible for building high-performance engines and race cars. The development of the S85 engine took several years and involved extensive research and testing. The goal was to create an engine that would deliver the power and performance that BMW fans expect while meeting strict emissions regulations.

3. Specifications and Performance

Power and Torque

The S85 engine is a 5.0-liter V10 engine that produces 500 horsepower and 384 lb-ft of torque. It has a redline of 8,250 RPM, which is incredibly high for a production engine. The S85 engine also features individual throttle bodies for each cylinder, which allows for precise control of the air/fuel mixture and improved throttle response.

Acceleration and Top Speed

The S85 engine is capable of propelling the BMW M5 from 0 to 60 mph in just 4.5 seconds, and it has a top speed of 200 mph. These impressive performance figures make the BMW M5 one of the fastest and most exhilarating cars on the road.

Fuel Efficiency

Despite its high-performance capabilities, the S85 engine is also surprisingly fuel-efficient. It has an EPA fuel economy rating of 11 mpg city and 17 mpg highway, which is impressive for a car with this level of performance.

4. Technology and Innovations

Valvetronic System

One of the key innovations in the S85 engine is the Valvetronic system, which is an advanced variable valve lift system. This system allows for precise control of the engine's valves, which improves fuel efficiency and reduces emissions. The Valvetronic system also improves throttle response and overall engine performance.

Double-VANOS System

The S85 engine also features BMW's Double-VANOS system, which is an advanced variable valve timing system. This system allows for precise control of the engine's valves, which improves power delivery and overall performance.

Carbon Fiber Reinforced Plastic (CFRP)

To reduce weight and improve performance, BMW used Carbon Fiber Reinforced Plastic (CFRP) in the construction of the S85 engine's intake manifold. This lightweight material reduces the engine's weight and improves its overall performance.

5. Cars That Use the S85 Engine

The S85 engine was used in two of BMW's most iconic cars, the M5 and the M6. These cars were produced between 2005 and 2010 and are highly sought after by BMW enthusiasts. The S85 engine is often cited as one of the reasons why these cars are so special, as it delivers exceptional power and performance.

6. Maintenance and Repairs

While the S85 engine is a marvel of engineering, it does require proper maintenance to ensure its longevity and performance. Routine maintenance such as oil changes and spark plug replacements are crucial to keep the engine running smoothly. Additionally, some owners have reported issues with the engine's rod bearings, which can lead to catastrophic engine failure if not addressed promptly. It's important to work with a qualified mechanic who is familiar with the S85 engine to ensure that any issues are identified and repaired quickly.

7. Conclusion

The BMW S85 engine is a testament to the brand's commitment to delivering the ultimate driving machine. With its advanced technology, raw power, and impressive performance, it's no wonder that the S85 engine is so highly regarded by BMW enthusiasts. Whether you're behind the wheel of an M5 or an M6, the S85 engine delivers an unforgettable driving experience that is second to none.

8. FAQs

1. What is the redline of the BMW S85 engine?

• The S85 engine has a redline of 8,250 RPM.

2. What cars use the S85 engine?

• The S85 engine was used in the BMW M5 and M6 models produced between 2005 and 2010.

3. Is the S85 engine fuel-efficient?

• Despite its high-performance capabilities, the S85 engine is surprisingly fuel-efficient, with an EPA fuel economy rating of 11 mpg city and 17 mpg highway.

4. What is the Valvetronic system in the S85 engine?

• The Valvetronic system is an advanced variable valve lift system that allows for precise control of the engine's valves, improving fuel efficiency and reducing emissions.

5. What is the Double-VANOS system in the S85 engine?

• The Double-VANOS system is an advanced variable valve timing system that allows for precise control of the engine's valves, improving power delivery and overall performance.

(E&OE)