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The quest for building a 500 horsepower Miata with an LS engine swap is an exhilarating journey for car enthusiasts. One of the critical components that can significantly enhance performance is the selection of the right exhaust headers and camshafts. This article will explore the best options available in the market, helping you make informed decisions for your build.
Understanding Exhaust Headers
Exhaust headers are crucial for improving the engine’s efficiency by reducing back pressure and increasing exhaust flow. When building a high-performance Miata LS, selecting the right headers is essential for achieving the desired horsepower.
Key Features to Consider
- Material: Stainless steel and mild steel are the most common materials. Stainless steel offers better durability and resistance to corrosion.
- Design: Long-tube headers typically provide better performance for high horsepower builds compared to shorty headers.
- Fitment: Ensure that the headers fit well within the Miata chassis without requiring extensive modifications.
Top Exhaust Headers for a 500 HP Miata LS Build
- American Racing Headers: Known for their high-quality construction and excellent performance gains. They offer long-tube headers specifically designed for LS swaps.
- Hooker Headers: A popular choice among LS enthusiasts, Hooker headers provide a great balance between performance and affordability.
- BBK Performance: These headers are known for their ease of installation and solid performance, making them a favorite for many Miata builders.
Choosing the Right Camshaft
The camshaft plays a vital role in determining the engine’s performance characteristics. It controls the timing and duration of the valve openings, which directly impacts horsepower and torque.
Factors to Consider When Selecting a Camshaft
- Lift and Duration: Higher lift and longer duration can increase horsepower, but may sacrifice drivability.
- LS Engine Compatibility: Ensure the camshaft is compatible with your specific LS engine variant.
- Driving Style: Consider whether you want a camshaft that favors street driving or one that excels in track conditions.
Recommended Camshafts for a 500 HP Miata LS Build
- Texas Speed Stage 2 Cam: A well-rounded camshaft that offers excellent power gains while maintaining good drivability.
- Brian Tooley Racing (BTR) Stage 3 Cam: Known for its aggressive profile, this camshaft is ideal for those looking to maximize horsepower.
- Comp Cams XFI Cam: Designed for high-performance applications, it provides significant power increases and improved throttle response.
Installation Tips
Installing exhaust headers and camshafts in a Miata LS build requires careful attention to detail. Here are some tips to ensure a successful installation:
- Follow Manufacturer Instructions: Always refer to the installation manual provided by the manufacturer for specific guidelines.
- Use Quality Gaskets: Invest in high-quality gaskets to prevent exhaust leaks.
- Check Clearances: Before finalizing the installation, check for any clearance issues that may arise.
Conclusion
Building a 500 horsepower Miata with an LS engine is an ambitious but rewarding project. By carefully selecting the right exhaust headers and camshafts, you can significantly enhance your vehicle’s performance. Remember to consider your driving style and performance goals when making your choices. Happy building!