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The Nissan 370Z, equipped with the VQ37VHR engine, is a well-regarded sports car known for its performance and tuning potential. Achieving over 400 wheel horsepower (WHP) is a common goal for enthusiasts. This article outlines how to reach that milestone using a Nismo oil pump and a Stillen supercharger.
Understanding the VQ37VHR Engine
The VQ37VHR engine is a 3.7-liter V6 that features a DOHC design and variable valve timing. It is known for its smooth power delivery and solid performance. Before diving into modifications, it’s essential to understand its capabilities and limitations.
Key Features of the VQ37VHR
- 3.7-liter V6 engine
- Dual Overhead Cam (DOHC) configuration
- Variable Valve Event and Lift (VVEL) system
- Aluminum alloy construction for reduced weight
Why Upgrade to a Nismo Oil Pump?
The Nismo oil pump is a popular upgrade for those looking to increase performance. It provides higher oil pressure, which is vital for maintaining engine health under increased load and RPMs.
Benefits of the Nismo Oil Pump
- Increased oil flow for better lubrication
- Improved engine reliability at high RPMs
- Enhanced performance during aggressive driving
- Optimized for aftermarket modifications
Installing the Stillen Supercharger
The Stillen supercharger kit is designed specifically for the 370Z. It adds significant power by forcing more air into the engine, which increases horsepower and torque. Proper installation is crucial for optimal performance.
Components of the Stillen Supercharger Kit
- Supercharger unit
- Intercooler
- Intake manifold
- All necessary hardware and gaskets
Installation Steps
Follow these steps for a successful installation:
- Disconnect the battery.
- Remove the stock intake and exhaust components.
- Install the supercharger unit onto the engine.
- Connect the intercooler and plumbing.
- Reinstall any removed components and ensure all connections are secure.
- Reconnect the battery and start the engine.
Tuning for Maximum Performance
After installing the Nismo oil pump and Stillen supercharger, proper tuning is essential to achieve over 400 WHP. This ensures that the engine runs efficiently and safely with the new modifications.
Choosing a Tuning Method
- ECU reflash
- Standalone engine management system
- Dyno tuning for precise adjustments
Key Tuning Parameters to Adjust
- Fuel maps for optimal air-fuel ratio
- Ignition timing for improved performance
- Boost levels to maximize power output
Testing and Verification
Once tuning is complete, it’s important to test the vehicle to verify the performance gains. A dynamometer is the best tool for measuring WHP accurately.
Steps for Testing Performance
- Warm up the engine thoroughly.
- Perform multiple runs on the dyno.
- Record the highest WHP achieved.
- Analyze data for any adjustments needed.
Conclusion
Reaching over 400 WHP on your Nissan 370Z VQ37VHR is an achievable goal with the right modifications. Upgrading to a Nismo oil pump and installing a Stillen supercharger are key steps in this process. Proper tuning and testing will ensure that your vehicle performs at its best, providing an exhilarating driving experience.