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Achieving 350 horsepower on an EJ255 engine is a popular goal for many car enthusiasts. This article breaks down the costs associated with upgrading fuel pumps and boost controllers to reach this performance target.
Understanding the EJ255 Engine
The EJ255 is a turbocharged flat-four engine used in various Subaru models. It offers a solid foundation for performance modifications, making it a favorite among tuners.
Key Components for Reaching 350 HP
- Upgraded Fuel Pump
- Boost Controller
- ECU Tuning
- Intercooler Upgrade
- Exhaust System Modification
Upgraded Fuel Pump
An upgraded fuel pump is essential to ensure adequate fuel delivery at higher power levels. A high-performance fuel pump can provide the necessary flow rates to support increased horsepower.
Typical costs for an upgraded fuel pump range from $150 to $300, depending on the brand and specifications.
Boost Controller
A boost controller allows you to manage the amount of boost pressure the turbocharger produces. This is crucial for achieving the desired horsepower without risking engine damage.
Prices for boost controllers vary, with manual controllers costing around $100 to $200, while electronic controllers can range from $200 to $500.
Additional Modifications
While the fuel pump and boost controller are key components, additional modifications will help reach the 350 HP goal more safely and effectively.
- ECU Tuning: $300 – $800
- Intercooler Upgrade: $300 – $600
- Exhaust System Modification: $500 – $1,500
ECU Tuning
ECU tuning is necessary to optimize the engine’s performance after modifications. This process adjusts fuel maps, ignition timing, and boost levels.
Intercooler Upgrade
An upgraded intercooler helps to reduce intake air temperatures, improving performance and preventing knock. A larger intercooler can support higher boost levels effectively.
Exhaust System Modification
A performance exhaust system reduces back pressure and enhances exhaust flow, contributing to improved horsepower. The cost can vary significantly based on the components chosen.
Total Cost Breakdown
Here’s a summary of the estimated costs for achieving 350 HP on an EJ255:
- Upgraded Fuel Pump: $150 – $300
- Boost Controller: $100 – $500
- ECU Tuning: $300 – $800
- Intercooler Upgrade: $300 – $600
- Exhaust System Modification: $500 – $1,500
In total, the estimated cost ranges from $1,350 to $3,700, depending on the choices made and the labor involved.
Conclusion
Reaching 350 HP on an EJ255 is achievable with the right upgrades and modifications. Understanding the costs involved helps enthusiasts plan their projects effectively.