Rx-8 Ls Swap Dyno Results: 450, 500, and 550+ Hp Builds on a Budget

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The RX-8 has long been a favorite among car enthusiasts for its unique rotary engine and lightweight chassis. However, many have sought to enhance its performance by swapping in a more powerful engine. The LS engine swap has become a popular choice, providing significant horsepower gains. In this article, we will explore the dyno results of RX-8 LS swaps, focusing on builds that achieve 450, 500, and 550+ horsepower, all while keeping budget considerations in mind.

Understanding the LS Swap

The LS engine series, originally designed by General Motors, offers a range of options that are both powerful and relatively affordable. The benefits of an LS swap into an RX-8 include:

  • Significantly increased horsepower and torque.
  • Greater reliability compared to the rotary engine.
  • Wider availability of aftermarket parts.
  • Improved tuning options for performance enhancements.

450 HP Build: Budget-Friendly Performance

The 450 horsepower build is an excellent entry point for those looking to experience the benefits of an LS swap without breaking the bank. This setup typically includes:

  • LS1 or LS6 engine block.
  • Basic bolt-on modifications such as headers and an aftermarket intake manifold.
  • ECU tuning to optimize performance.
  • Supporting modifications such as a high-performance fuel pump.

On the dyno, this build often produces around 450 horsepower at the wheels, providing a thrilling driving experience while maintaining a budget-friendly approach.

500 HP Build: Striking a Balance

For those looking to push the envelope further, the 500 horsepower build offers a perfect balance between performance and cost. Key components of this build include:

  • LS3 engine for increased displacement and power.
  • Long tube headers for improved exhaust flow.
  • Upgraded camshaft for better performance at higher RPMs.
  • Custom ECU tuning for optimal performance gains.

With these modifications, the RX-8 can reach approximately 500 horsepower on the dyno, providing an exhilarating experience on both the street and the track.

550+ HP Build: The Ultimate Performance Machine

The 550+ horsepower build is for those who want to take their RX-8 to the next level. This setup requires more investment but yields impressive results. Essential components include:

  • LS7 engine for maximum power and performance.
  • High-performance intake and exhaust systems.
  • Upgraded fuel injectors and fuel system to support higher horsepower.
  • Advanced tuning solutions for precision performance enhancement.

This build can achieve over 550 horsepower on the dyno, making it a true powerhouse on the road. However, it is crucial to ensure that the RX-8’s drivetrain can handle the increased power.

Conclusion: Budget Considerations and Performance Gains

Swapping an LS engine into an RX-8 can unlock significant performance gains, allowing enthusiasts to customize their builds based on budget and desired horsepower. Whether aiming for a reliable 450 horsepower or pushing for over 550, each build offers unique advantages and challenges. By carefully selecting components and considering budget constraints, car enthusiasts can create a powerful and enjoyable driving experience.