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The FA20 engine, known for its balance of performance and efficiency, has gained popularity among enthusiasts of the Toyota GT86 and Subaru BRZ. Many owners have embarked on the journey to extract more power from this engine, aiming for the coveted 300-hp mark. This article explores real-world results from various builds, showcasing the modifications, challenges, and successes experienced by these owners.
Understanding the FA20 Engine
The FA20 is a flat-four engine that features a unique design, contributing to a lower center of gravity and improved handling. It is a naturally aspirated engine, which means that achieving higher horsepower figures requires significant modifications. Below are some key characteristics of the FA20 engine:
- 2.0-liter displacement
- DOHC with Dual VVT
- Direct and port fuel injection
- Lightweight design for better performance
Common Modifications for 300-HP Builds
To reach the 300-hp threshold, owners typically implement a combination of modifications. Here are some of the most common upgrades:
- Aftermarket turbocharger or supercharger kits
- High-flow fuel injectors
- Upgraded intercooler systems
- Performance exhaust systems
- ECU tuning for optimized performance
Owner Experiences and Results
Numerous owners have shared their experiences in building their FA20 engines to achieve 300 hp. Here are a few notable examples:
Owner Build #1: Turbocharged GT86
This owner installed a popular turbo kit, which included a larger turbocharger, upgraded intercooler, and necessary piping. After tuning, the car produced 310 hp at the wheels. The owner noted significant improvements in throttle response and overall driving enjoyment.
Owner Build #2: Supercharged BRZ
Another enthusiast opted for a supercharger setup. With a custom ECU tune and supporting mods like high-flow injectors, this build achieved 305 hp. The owner praised the linear power delivery and the ability to maintain reliability on the street.
Owner Build #3: Naturally Aspirated with High Compression
One owner pursued a naturally aspirated route by increasing the engine’s compression ratio and adding performance headers. This build reached 290 hp, with the owner emphasizing the benefits of weight savings and improved handling characteristics.
Challenges Faced by Builders
While many have successfully reached their horsepower goals, several challenges are commonly encountered:
- Finding reliable and compatible aftermarket parts
- Ensuring proper tuning to avoid engine damage
- Managing heat and boost levels for longevity
- Balancing power with drivability
Conclusion
The journey to achieve 300 hp with the FA20 engine in the Toyota GT86 and Subaru BRZ is filled with excitement and challenges. With the right modifications and tuning, many owners have successfully reached this milestone, enhancing their vehicles’ performance and driving experience. As the community continues to grow, sharing knowledge and experiences will play a crucial role in helping future builders realize their horsepower dreams.