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The SR20DET engine has long been a favorite among car enthusiasts for its potential to produce impressive horsepower figures. With the right modifications, achieving 350 hp is within reach, especially when utilizing a Greddy T78 turbo. This article outlines the steps and costs involved in boosting your SR20DET to this power level for approximately $4,500.
Understanding the SR20DET Engine
The SR20DET is a turbocharged inline-four engine produced by Nissan. It is renowned for its tuning potential and has been utilized in various Nissan models, including the 240SX and Silvia. The engine’s robust design allows for significant power upgrades with the right components.
Key Components for Boosting Performance
- Greddy T78 Turbo
- Upgraded Fuel Injectors
- Aftermarket Fuel Pump
- Intercooler Upgrade
- ECU Tune
Greddy T78 Turbo
The Greddy T78 turbo is a popular choice for achieving high horsepower figures. It offers a balance of responsiveness and power, making it ideal for the SR20DET. The T78 can support over 400 hp, ensuring that you have room for future upgrades.
Upgraded Fuel Injectors
To support the increased airflow from the T78 turbo, upgraded fuel injectors are crucial. Aim for injectors that can deliver around 550cc/min to ensure proper fuel delivery at higher boost levels.
Aftermarket Fuel Pump
An aftermarket fuel pump will provide the necessary fuel pressure to support your upgraded injectors. A pump rated for at least 255 lph is recommended to maintain fuel flow during high-performance driving.
Intercooler Upgrade
To manage the increased intake temperatures from the turbo, an upgraded intercooler is essential. A larger front-mount intercooler will help reduce the air temperature, resulting in denser air and improved performance.
ECU Tune
A proper ECU tune is necessary to optimize the engine’s performance with the new turbo and supporting modifications. A professional tune will ensure that the air-fuel ratio is correct and that the engine runs efficiently.
Cost Breakdown
Here’s a breakdown of the estimated costs associated with each component needed to achieve 350 hp:
- Greddy T78 Turbo: $1,800
- Upgraded Fuel Injectors: $400
- Aftermarket Fuel Pump: $150
- Intercooler Upgrade: $600
- ECU Tune: $500
- Miscellaneous (hoses, fittings, etc.): $1,000
Installation Tips
Installing the Greddy T78 turbo and supporting components can be a complex process. Here are some tips to help you with the installation:
- Ensure you have all necessary tools before starting the installation.
- Follow the manufacturer’s instructions for each component carefully.
- Consider seeking professional help if you’re not experienced with turbo installations.
- Double-check all connections and fittings to avoid leaks.
Conclusion
Boosting your SR20DET to 350 hp with a Greddy T78 turbo is an achievable goal with the right components and careful planning. By investing approximately $4,500, you can significantly enhance your vehicle’s performance and enjoy the thrill of driving a high-powered turbocharged engine.