Overview of the VQ37VHR Engine
The Nissan VQ37VHR is a 3.7-liter V6 engine that has made a significant impact in the automotive world since its introduction. Launched in 2007, this engine is a part of Nissan’s renowned VQ family, which has gained a reputation for performance, reliability, and efficiency. The VQ37VHR is characterized by its aluminum alloy construction, DOHC (Double Overhead Camshaft) design, and a 60-degree V-angle, allowing for a compact and lightweight configuration.
One of the standout features of the VQ37VHR is its advanced variable valve timing system, known as VVEL (Variable Valve Event and Lift). This technology optimizes the engine’s performance by adjusting the timing and lift of the intake valves, resulting in improved throttle response and enhanced fuel efficiency across a broad range of RPMs. The engine produces a robust power output, typically around 330 horsepower and 270 lb-ft of torque, making it a favorite among driving enthusiasts and those seeking a spirited driving experience.
Applications in Various Models
The VQ37VHR engine has been utilized in several Nissan and Infiniti models, showcasing its versatility and performance capabilities. Here’s a list of some notable vehicles that have featured this engine:
- Nissan 370Z – The iconic sports car that combines sleek design with exhilarating performance, the 370Z benefits from the VQ37VHR’s power and responsiveness.
- Infiniti G37 – This luxury sedan and coupe offers a blend of performance and comfort, with the VQ37VHR providing the necessary power for an engaging driving experience.
- Infiniti Q50 – A modern luxury sports sedan that takes advantage of the VQ37VHR’s capabilities, delivering a thrilling ride with advanced technology and comfort features.
- Infiniti FX37 – This crossover SUV combines style and performance, with the VQ37VHR engine providing ample power for both city driving and highway cruising.
- Nissan Altima (Sport Models) – While primarily known for its practicality, select sport-oriented trims of the Altima have also incorporated the VQ37VHR, adding a touch of excitement to the daily commute.
- Nissan Maxima (Sport Models) – The Maxima, known as a “four-door sports car,” has also utilized the VQ37VHR to enhance its performance credentials.
The VQ37VHR engine’s widespread application across various models highlights its adaptability and appeal. Whether in a sports car, luxury sedan, or crossover SUV, this engine has proven to deliver an exhilarating driving experience while maintaining a level of efficiency that is commendable for its class. Its blend of power, smoothness, and advanced technology continues to make it a sought-after choice among automotive enthusiasts and everyday drivers alike.
Specifications of the VQ37VHR Engine
The Nissan VQ37VHR engine is a marvel of engineering, designed to deliver performance and efficiency in a compact package. Below, we delve into the detailed specifications that define this robust powerplant, showcasing its capabilities and features that make it a standout choice in the automotive landscape.
Engine Specifications
| Specification | Details |
|---|---|
| Engine Type | 3.7L V6, DOHC |
| Configuration | 60-degree V-angle |
| Valvetrain | 24 valves (3 per cylinder) |
| Fuel System | Electronic fuel injection |
| Compression Ratio | 11.0:1 |
| Maximum Horsepower | 330 hp @ 7,000 RPM |
| Maximum Torque | 270 lb-ft @ 5,200 RPM |
| Redline | 7,500 RPM |
| Fuel Type | Premium unleaded (91 octane or higher) |
| Ignition System | Distributor-less ignition system (DIS) |
| Cooling System | Water-cooled |
| Weight | Approximately 350 lbs (158.8 kg) |
Oil Capacity and Recommendations
Proper maintenance is crucial for the longevity and performance of the VQ37VHR engine. Here are the specifications related to oil capacity and recommendations:
| Specification | Details |
|---|---|
| Oil Capacity (with filter) | 5.4 quarts (5.1 liters) |
| Oil Type | Synthetic 5W-30 |
| Oil Change Interval | Every 5,000 to 7,500 miles (8,000 to 12,000 km) |
The VQ37VHR engine combines advanced technology with practical specifications, making it a reliable choice for various Nissan and Infiniti models. Its robust power output and efficient design ensure that it meets the demands of both spirited driving and everyday use. Proper maintenance, including regular oil changes with the recommended synthetic oil, will help keep this engine running smoothly and efficiently for years to come.
Common Problems and Reliability of the VQ37VHR Engine
The Nissan VQ37VHR engine is generally regarded as a reliable powerplant, but like any engine, it is not without its issues. Understanding these common problems can help owners maintain their vehicles effectively and avoid costly repairs. Let’s dive into the most frequently reported issues and the overall reliability of this engine.
Common Problems
While the VQ37VHR is built with quality materials and engineering, there are several common problems that some owners have encountered:
1. Oil Consumption
Many owners have reported excessive oil consumption, especially as the engine ages. This can lead to the need for more frequent oil top-offs and could indicate underlying issues such as worn piston rings or valve seals.
2. Timing Chain Tensioner Issues
The timing chain tensioner is crucial for keeping the timing chain properly adjusted. Some users have experienced problems with the tensioner, leading to a rattling noise on startup and potential timing issues if not addressed.
3. Carbon Buildup
Due to the direct fuel injection system, carbon buildup on intake valves can be a concern. This can affect performance and fuel efficiency over time. Regular maintenance and cleaning can help mitigate this issue.
4. Overheating
In certain circumstances, the engine may experience overheating, often due to a failing thermostat or water pump. Overheating can lead to severe engine damage if not addressed promptly.
5. Fuel Pump Failures
Some owners have reported fuel pump failures, which can lead to starting issues or poor engine performance. This is typically an inconvenience that requires replacement.
Reliability Assessment
Despite these common problems, the VQ37VHR engine is generally considered reliable. Many owners report that with proper maintenance, the engine can last well over 150,000 miles without significant issues. Here are some factors contributing to its reliability:
- Robust Construction: The engine’s aluminum block and heads contribute to a lightweight yet durable design.
- Routine Maintenance: Regular oil changes and timely repairs can significantly extend the life of the engine.
- Community Support: There is a strong community of enthusiasts who share tips and advice on maintaining the VQ37VHR, making it easier for owners to troubleshoot issues.
- Parts Availability: As a popular engine, replacement parts are widely available, which can ease repair processes and costs.
In summary, while the Nissan VQ37VHR engine has its share of common problems, its overall reliability remains commendable. By staying on top of maintenance and addressing issues as they arise, owners can enjoy the performance and longevity that this engine has to offer.