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When it comes to tuning the A90 Supra for performance, one of the most critical decisions is selecting the right turbocharger. With various options available, understanding the differences between the 4087 and VS6466 turbos is essential for achieving optimal power levels, particularly in the 550-700 horsepower range.
Understanding Turbocharger Basics
Turbochargers are vital components in enhancing engine performance. They work by forcing more air into the combustion chamber, allowing for more fuel to be burned and ultimately increasing horsepower. However, not all turbos are created equal, and their sizes can significantly affect power delivery and engine response.
Comparing the 4087 and VS6466 Turbos
Both the 4087 and VS6466 turbos are popular choices among A90 Supra enthusiasts. Each has its strengths and weaknesses that cater to different performance goals.
4087 Turbo Overview
The 4087 turbo is known for its ability to provide a solid balance between spool time and power output. It is often favored for builds aiming for the lower end of the horsepower spectrum.
- Spool Time: Faster spool time, making it ideal for street use.
- Power Range: Suitable for builds in the 550-650 hp range.
- Response: Provides excellent throttle response and drivability.
VS6466 Turbo Overview
The VS6466 turbo, on the other hand, is designed for higher power applications. It excels in providing more horsepower but may sacrifice some spool time.
- Spool Time: Slightly slower spool time compared to the 4087.
- Power Range: Capable of supporting builds from 650-700 hp.
- Performance: Delivers a more aggressive power band, ideal for track use.
Factors to Consider When Choosing a Turbo
When deciding between the 4087 and VS6466, several factors should be taken into account to ensure the best fit for your specific build and driving style.
- Intended Use: Determine if the car will be used for daily driving, track days, or a mix of both.
- Power Goals: Clearly define your horsepower goals to match the turbo’s capabilities.
- Supporting Mods: Ensure that other modifications in the engine support the chosen turbo for optimal performance.
Installation Considerations
Installing a turbocharger requires careful planning and execution. Both the 4087 and VS6466 will necessitate specific modifications to the A90 Supra.
- Turbo Kit: Ensure you have a compatible turbo kit for your chosen turbo.
- Fuel System: Upgrading the fuel system may be necessary to handle increased power.
- Tuning: Proper tuning is crucial to maximize performance and reliability.
Conclusion
Choosing the right turbo size for your A90 Supra is a pivotal decision that influences your car’s performance. The 4087 turbo offers quicker spool times and is suitable for builds targeting 550-650 hp, while the VS6466 turbo is ideal for those aiming for higher power outputs of 650-700 hp. By considering your specific needs and goals, you can select the turbo that best fits your performance aspirations.