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The Mazda RX-7 is a beloved sports car known for its lightweight design and rotary engine. However, many enthusiasts seek to enhance its performance by swapping in a more powerful engine, such as the Chevrolet LS series. This article explores the best supporting parts for a reliable RX-7 LS swap, focusing on headers, ECU, and cooling systems.
Why Choose an LS Swap for the RX-7?
The LS engine is renowned for its power, reliability, and aftermarket support. Swapping an LS engine into an RX-7 can result in a significant performance boost. The following reasons highlight why this swap is popular among car enthusiasts:
- High power-to-weight ratio
- Abundant aftermarket parts
- Improved reliability compared to the rotary engine
- Enhanced tuning capabilities
Essential Supporting Parts for the LS Swap
To ensure a successful and reliable LS swap in your RX-7, several supporting parts are essential. Here, we will discuss headers, ECU options, and cooling systems.
Headers
Headers play a crucial role in improving exhaust flow and overall engine performance. Choosing the right headers for your LS swap can enhance power output and throttle response. Here are some top options:
- Long Tube Headers: These headers provide maximum exhaust flow and are ideal for high-performance applications.
- Shorty Headers: Easier to install and provide decent performance gains while maintaining a more compact design.
- Custom Headers: For those looking for a perfect fit, custom headers can be fabricated to suit your specific needs and engine setup.
ECU Options
The engine control unit (ECU) is vital for managing the LS engine’s performance. Selecting the right ECU can significantly impact your RX-7’s drivability and tuning potential. Here are some popular ECU options:
- LS1 PCM: The factory PCM from an LS1 engine can be reprogrammed for use in your RX-7.
- Holley Terminator X: A standalone ECU that offers extensive tuning capabilities and easy installation.
- MoTeC: A high-end option for professional tuning, offering advanced features and flexibility.
Cooling Systems
Effective cooling is essential for maintaining engine performance and reliability, especially when swapping in a more powerful LS engine. Upgrading the cooling system in your RX-7 is crucial. Here are some recommended components:
- Radiator: A larger, high-performance radiator will improve cooling efficiency. Consider options from brands like Mishimoto or DeWitts.
- Electric Fans: Upgrading to electric fans can enhance airflow and reduce weight compared to stock mechanical fans.
- Cooling Hoses: Silicone hoses are more durable and can handle higher temperatures than traditional rubber hoses.
Conclusion
In summary, performing an LS swap in a Mazda RX-7 can yield impressive performance gains. By selecting the right headers, ECU, and cooling system, you can ensure a reliable and powerful setup. Always consider your specific goals and preferences when choosing components for your swap to achieve the best results.