Table of Contents
The SR20DET engine has long been a favorite among car enthusiasts, particularly those involved in the drift and tuning scenes. With its robust design and potential for high horsepower, it’s no wonder that many seek to maximize its performance. One of the most popular upgrades is the Tomei Expreme Turbo, which has proven to deliver impressive results. In this article, we will explore the real-world results of achieving 320 wheel horsepower (WHP) using this turbocharger on an SR20DET engine.
Understanding the SR20DET Engine
The SR20DET is a turbocharged inline-four engine produced by Nissan. It has a displacement of 2.0 liters and is known for its durability and tunability. Here are some key features of the SR20DET:
- Turbocharged and intercooled
- DOHC design with 16 valves
- Lightweight aluminum block
- Aftermarket support for tuning and modifications
The Tomei Expreme Turbo
The Tomei Expreme Turbo is designed specifically for the SR20DET and is known for its ability to produce significant power gains. Here are some features of the Tomei Expreme Turbo:
- Ball bearing design for quicker spool
- High-flow turbine and compressor wheels
- Optimized for both street and track use
- Lightweight construction for improved response
Achieving 320 WHP: The Build
To achieve 320 WHP with the Tomei Expreme Turbo on an SR20DET, several modifications and tuning adjustments are necessary. Below is an overview of the key components and modifications used in this build:
- Tomei Expreme Turbo
- Upgraded fuel injectors (750cc recommended)
- Aftermarket fuel pump (e.g., Walbro 255)
- Upgraded intercooler for better cooling
- High-performance exhaust system
- ECU remapping or standalone engine management
Fuel System Upgrades
Upgrading the fuel system is critical when increasing horsepower. The stock fuel injectors and pump may not supply enough fuel for higher horsepower levels. By installing larger injectors and an upgraded fuel pump, you ensure that the engine receives the necessary fuel for optimal performance.
Cooling Enhancements
Heat management is essential in high-performance builds. An upgraded intercooler helps to reduce intake temperatures, allowing for denser air and improved combustion. This is crucial for achieving higher horsepower levels without risking engine knock or damage.
Tuning for Performance
After all modifications are completed, the next step is tuning the engine. Proper tuning maximizes the performance potential of the SR20DET and ensures that the engine runs smoothly and efficiently. Here’s what to consider during the tuning process:
- Use a reputable tuner with experience in SR20DET builds
- Monitor air-fuel ratios to ensure optimal combustion
- Adjust ignition timing for maximum power
- Test and refine the setup on a dynamometer
Real-World Results
With the Tomei Expreme Turbo installed and the engine properly tuned, the results were impressive. The SR20DET achieved a peak power output of 320 WHP, showcasing the effectiveness of the modifications. The following factors contributed to this success:
- Quick spool time due to the ball bearing design of the turbo
- Improved throttle response from the upgraded fuel system
- Enhanced cooling from the intercooler and exhaust system
- Precise tuning that maximized the engine’s potential
Conclusion
Achieving 320 WHP with a Tomei Expreme Turbo on an SR20DET is not only possible but also a rewarding experience for car enthusiasts. With the right modifications, tuning, and attention to detail, the SR20DET can deliver impressive performance on both the street and the track. For those looking to enhance their SR20DET, the Tomei Expreme Turbo is a worthy investment that can yield significant power gains.