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The SR20DET is a popular engine choice among enthusiasts looking to maximize performance. By upgrading to a Mitsubishi TD06H-20G turbo, you can significantly increase horsepower, achieving an impressive 380 HP. This article will guide you through the tuning process for optimal performance.
Understanding the SR20DET Engine
The SR20DET is a 2.0-liter inline-four engine that has gained a reputation for its tuning potential. It features a DOHC design and is equipped with a turbocharger, making it a favored choice for performance builds. Key specifications include:
- Engine displacement: 2.0 liters
- Power output: 205 HP (stock)
- Torque: 203 lb-ft (stock)
Choosing the Right Turbocharger
The Mitsubishi TD06H-20G turbo is a popular upgrade for SR20DET enthusiasts. It offers a good balance of spool time and peak power, making it ideal for street and track applications. Key features include:
- Compressor size: 20G
- Maximum horsepower: 400 HP
- Efficient boost range: 18-25 PSI
Tuning for Maximum Performance
To achieve 380 HP with the TD06H-20G turbo, proper tuning is essential. This involves adjusting various engine parameters to optimize performance. Here are the key tuning aspects to consider:
Fuel System Upgrades
Upgrading the fuel system is critical for supporting increased horsepower. Consider the following:
- Install larger fuel injectors (e.g., 550cc or 740cc)
- Upgrade the fuel pump to a high-flow model
- Ensure proper fuel pressure regulation
Engine Management System
An aftermarket engine management system (EMS) is crucial for precise tuning. Options include:
- Standalone ECU (e.g., AEM, Haltech)
- Tuning software for real-time adjustments
- Wideband O2 sensor for accurate air-fuel ratio monitoring
Boost Control
Controlling boost levels is vital for performance and engine safety. Consider these upgrades:
- Install an external wastegate for better boost control
- Use a boost controller (manual or electronic)
- Monitor boost levels with a gauge
Supporting Modifications
In addition to tuning, supporting modifications will help you reach your performance goals. Key upgrades include:
Exhaust System
A high-performance exhaust system will improve airflow and reduce back pressure. Consider:
- 3-inch turbo-back exhaust
- High-flow catalytic converter
- Performance muffler for reduced restrictions
Intercooler Upgrade
Upgrading the intercooler is essential for maintaining optimal intake temperatures. Look for:
- Front-mount intercooler for better cooling efficiency
- High-flow intercooler piping
- Proper mounting and fitment for airflow
Tuning Process Overview
The tuning process involves several steps to ensure your SR20DET reaches its potential. Follow this outline:
- Install all necessary upgrades
- Set initial fuel and ignition maps
- Perform a baseline dyno run
- Adjust tuning parameters based on data
- Monitor air-fuel ratios and boost levels
- Finalize tuning and conduct a final dyno run
Conclusion
Tuning your SR20DET with a Mitsubishi TD06H-20G turbo can yield impressive results, reaching up to 380 HP. By focusing on fuel system upgrades, engine management, boost control, and supporting modifications, you can ensure your engine performs at its best. Always remember to monitor performance and make adjustments as necessary for optimal results.