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The FA20 engine, known for its balance of performance and efficiency, has become a popular choice among car enthusiasts looking to enhance their vehicles. Achieving 300 horsepower from an FA20 build requires more than just a few tweaks; it necessitates a comprehensive approach, especially when it comes to upgrading the fuel system. In this article, we will explore real-world results of 300 HP FA20 builds, the necessary upgrades, and the associated costs.
Understanding the FA20 Engine
The FA20 engine is a flat-four engine developed by Subaru, featuring a lightweight design and a low center of gravity. It is commonly found in models like the Subaru BRZ and Toyota 86. While the FA20 is capable of producing respectable power, many enthusiasts seek to push its limits.
Key Upgrades for 300 HP Builds
To achieve 300 horsepower, several key components must be upgraded. These include the turbocharger, intercooler, fuel injectors, and fuel pump. Each of these components plays a crucial role in ensuring the engine can handle increased power levels.
- Turbocharger: Upgrading to a larger turbo is essential for increasing airflow and boosting performance.
- Intercooler: An upgraded intercooler helps reduce intake temperatures, improving efficiency and power.
- Fuel Injectors: Larger injectors are necessary to supply enough fuel for higher horsepower levels.
- Fuel Pump: An upgraded fuel pump ensures sufficient fuel delivery to support the increased demands of the engine.
Cost Breakdown of Upgrades
Understanding the costs associated with each upgrade is crucial for budget planning. Below is a breakdown of the estimated costs for each component necessary to achieve a 300 HP FA20 build.
- Turbocharger: $1,500 – $3,000
- Intercooler: $500 – $1,200
- Fuel Injectors: $300 – $800
- Fuel Pump: $200 – $600
- Tuning: $500 – $1,500
Real-World Examples
To provide further insights, we will examine a few real-world examples of FA20 builds that have successfully achieved 300 horsepower with upgraded fuel systems.
Example 1: Subaru BRZ
One owner of a Subaru BRZ upgraded their turbocharger to a BorgWarner unit, installed a larger intercooler, and replaced the stock fuel pump with a high-performance model. The total cost for these upgrades was approximately $4,000, resulting in a final output of 320 horsepower.
Example 2: Toyota 86
A Toyota 86 owner opted for a different approach, focusing on a precision turbocharger and a custom fuel system. With an investment of about $5,000, they achieved a peak power of 310 horsepower. This build included custom tuning for optimal performance.
Example 3: Scion FR-S
A Scion FR-S enthusiast chose to upgrade their fuel injectors and intercooler while maintaining a stock turbo. The total expenditure for these modifications was around $3,500, leading to a power output of 305 horsepower. This approach demonstrated that significant gains can be made without a complete overhaul of the turbo system.
Conclusion
Achieving 300 horsepower from an FA20 engine is a realistic goal for many enthusiasts, provided they are willing to invest in the right upgrades. By focusing on the fuel system and other critical components, car owners can unlock the full potential of their vehicles. The costs associated with these upgrades can vary, but the investment often leads to substantial performance gains, making it a worthwhile endeavor for those passionate about their cars.