Best Camshaft and Intake Upgrades for Maximizing a 550 Hp Rx-7 Ls Swap

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The RX-7 is a legendary sports car known for its lightweight design and exceptional handling. When swapping an LS engine into this vehicle, achieving optimal performance is crucial for maximizing horsepower. One of the most effective ways to enhance the power output of a 550 HP RX-7 LS swap is through camshaft and intake upgrades. This article explores the best options available to help you achieve the desired performance.

Understanding Camshaft Upgrades

A camshaft plays a vital role in controlling the timing and duration of the engine’s intake and exhaust valves. Upgrading the camshaft can significantly improve airflow, resulting in increased power and efficiency. When selecting a camshaft for your LS swap, consider the following:

  • Lift: Higher lift allows for more air to enter the engine.
  • Duration: Longer duration increases the time the valves are open, enhancing airflow.
  • Overlap: The amount of time both valves are open can affect power delivery.

Top Camshaft Options for LS Swaps

Here are some of the best camshaft options for maximizing the power of your RX-7 LS swap:

  • Texas Speed Stage 2 Cam: This cam offers excellent power gains and a smooth idle, making it a popular choice for street applications.
  • Brian Tooley Racing (BTR) Stage 3 Cam: Known for its aggressive performance, this camshaft is ideal for those looking to push the limits of their LS engine.
  • Comp Cams XFI RPM Cam: This cam provides a great balance of power and drivability, making it suitable for both street and track use.

Intake Upgrades for Enhanced Performance

The intake system is crucial for delivering air to the engine. Upgrading the intake manifold and throttle body can lead to significant improvements in airflow and overall performance. Here are some key considerations when selecting intake upgrades:

  • Material: Aluminum intakes are lighter and better at dissipating heat compared to plastic ones.
  • Design: Look for designs that promote smooth airflow and reduce turbulence.
  • Size: Larger throttle bodies can increase airflow but may require tuning for optimal performance.

Best Intake Manifolds for LS Swaps

Consider these top intake manifold options to maximize performance in your RX-7:

  • Holley Hi-Ram Intake Manifold: This high-performance manifold is designed for maximum airflow and is suitable for high horsepower applications.
  • FAST LSXR Intake Manifold: Known for its lightweight construction and excellent airflow characteristics, this manifold is a favorite among enthusiasts.
  • LS3 Intake Manifold: A great option for those looking for a factory solution with proven performance, the LS3 manifold is compatible with many LS engines.

Throttle Body Upgrades

Upgrading the throttle body can also yield significant performance gains. Here are some recommended throttle body options:

  • BBK 102mm Throttle Body: This oversized throttle body allows for increased airflow, making it perfect for high-performance builds.
  • Holley 92mm Throttle Body: A great choice for those looking for a direct bolt-on solution with excellent performance.
  • Fast 102mm Throttle Body: Known for its superior design, this throttle body enhances throttle response and overall power.

Tuning for Maximum Performance

After upgrading your camshaft and intake components, proper tuning is essential to maximize performance. A good tuning session can help ensure that your engine runs smoothly and efficiently, taking full advantage of the upgrades. Here are some tuning options to consider:

  • ECU Reflash: Reflashing the ECU can optimize fuel maps and ignition timing for your new setup.
  • Standalone ECU: For those seeking the highest level of control, a standalone ECU allows for extensive customization.
  • Dyno Tuning: A professional dyno tune can provide the best results, ensuring your engine performs at its peak.

Conclusion

Maximizing the performance of a 550 HP RX-7 LS swap requires careful consideration of camshaft and intake upgrades. By selecting the right components and ensuring proper tuning, you can unleash the full potential of your engine. Whether you choose a high-performance camshaft, an optimized intake manifold, or an upgraded throttle body, each element plays a crucial role in achieving your performance goals.