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The SR20DET engine is a popular choice among car enthusiasts looking to enhance performance. With its robust design, it serves as a solid foundation for tuning. In this article, we will explore how to boost your SR20DET from 220 HP to 350+ HP using Cosworth internals.
Understanding the SR20DET Engine
The SR20DET is a turbocharged inline-four engine produced by Nissan. Known for its reliability and tuning potential, it has become a favorite in the tuning community.
Key Features of the SR20DET
- 2.0-liter displacement
- DOHC design
- Turbocharged
- Intercooled
These features make it a strong candidate for performance upgrades. However, to achieve significant power gains, internal modifications are necessary.
Benefits of Cosworth Internals
Cosworth is renowned for producing high-performance engine components. Upgrading to Cosworth internals can help achieve the desired power levels while maintaining reliability.
Key Components from Cosworth
- Forged pistons
- Connecting rods
- Cylinder head upgrades
- High-performance camshafts
These components are designed to withstand higher pressures and temperatures, making them ideal for a boosted setup.
Steps to Boost Your SR20DET
To achieve a power output of 350+ HP, follow these steps carefully.
1. Disassemble the Engine
Start by removing the engine from the vehicle. Disassemble it carefully, taking note of the order of components for reassembly.
2. Install Cosworth Forged Pistons
Replace the factory pistons with Cosworth forged pistons. These pistons are designed for high performance and will help increase compression ratios.
3. Upgrade Connecting Rods
Next, install Cosworth connecting rods. These rods are stronger than stock options and can handle increased power and torque.
4. Enhance the Cylinder Head
Upgrade the cylinder head with Cosworth components. This may include porting and polishing to improve airflow.
5. Install High-Performance Camshafts
Replace the stock camshafts with high-performance options from Cosworth. This will improve the engine’s ability to breathe at higher RPMs.
Tuning for Performance
After installing the new internals, tuning is crucial to maximize performance.
Importance of ECU Tuning
Reprogram the ECU to accommodate the new setup. This will ensure optimal fuel delivery and ignition timing.
Boost Control Setup
Consider installing a boost controller to manage boost levels effectively. This will help prevent engine knock and maintain reliability.
Supporting Modifications
To support the increased power, additional modifications may be necessary.
Upgraded Turbocharger
Consider upgrading to a larger turbocharger to provide the necessary airflow for higher power outputs.
Improved Fuel System
Upgrade the fuel pump and injectors to ensure adequate fuel delivery under boost conditions.
Enhanced Cooling System
Install an upgraded intercooler and radiator to manage the increased heat generated by higher power levels.
Conclusion
Boosting your SR20DET from 220 HP to 350+ HP is achievable with the right modifications, particularly using Cosworth internals. By following the steps outlined and ensuring proper tuning, you can enjoy a reliable and powerful engine that enhances your driving experience.