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The Nissan 370Z, equipped with the VQ37VHR engine, has become a popular choice among car enthusiasts looking for performance and tuning potential. In this article, we will explore the power gains achieved by the stock VQ37VHR engine compared to a modified version producing 550 horsepower with the addition of an HKS supercharger and an upgraded fuel system.
Understanding the VQ37VHR Engine
The VQ37VHR is a 3.7-liter V6 engine known for its smooth power delivery and strong performance characteristics. It features an aluminum alloy block and DOHC design, which allows for high revs and efficient airflow.
Stock Power Output
The stock VQ37VHR engine produces approximately 332 horsepower and 270 lb-ft of torque. This performance is adequate for spirited driving and provides a solid foundation for modifications.
Upgrading to 550 HP
By adding an HKS supercharger and upgrading the fuel system, enthusiasts can unlock significant power gains. The HKS supercharger is designed to increase the engine’s air intake, resulting in more power and torque.
Benefits of the HKS Supercharger
The HKS supercharger offers several advantages:
- Increased horsepower and torque across the RPM range.
- Improved throttle response.
- Enhanced driving experience with a noticeable boost in performance.
Upgraded Fuel System
To support the increased power output, an upgraded fuel system is essential. This includes high-flow fuel injectors and a larger fuel pump to ensure adequate fuel delivery.
Comparing Power Gains
With the HKS supercharger and upgraded fuel system, the VQ37VHR engine can reach an impressive 550 horsepower. This is a substantial increase from the stock output and significantly enhances the vehicle’s performance.
Performance Metrics
- Stock: 332 HP, 270 lb-ft torque.
- Modified: 550 HP, torque figures can vary based on tuning.
Driving Experience
The driving experience of a stock 370Z is enjoyable, but the modified version with the HKS supercharger transforms the car into a high-performance machine. The increased horsepower allows for quicker acceleration and a more exhilarating ride.
Considerations for Modification
While upgrading to 550 horsepower can be thrilling, there are several considerations to keep in mind:
- Increased wear on engine components.
- Potential need for additional cooling solutions.
- Insurance and warranty implications.
Conclusion
In conclusion, comparing the stock VQ37VHR engine to a modified version with an HKS supercharger and upgraded fuel system reveals significant power gains. The transition from 332 horsepower to 550 horsepower not only enhances performance but also elevates the overall driving experience. For those considering modifications, understanding the benefits and implications is crucial for making informed decisions.