Maintaining Longevity in Your Rx-7 Ls Swap: Oil, Cooling, and Suspension Upgrades

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The RX-7 is a beloved sports car known for its lightweight design and agile handling. When swapping the rotary engine for an LS engine, enthusiasts often seek ways to enhance performance and longevity. In this article, we will discuss essential upgrades in oil management, cooling systems, and suspension to ensure your RX-7 LS swap remains reliable and enjoyable.

Oil Management Upgrades

Proper oil management is crucial for the longevity of any engine, especially in a high-performance setup like an LS swap. Here are some key upgrades to consider:

  • High-Quality Oil: Use synthetic oil that meets or exceeds the specifications for your LS engine. This ensures better protection under high temperatures and stress.
  • Oil Cooler: Installing an oil cooler helps maintain optimal oil temperatures, preventing breakdown and maintaining viscosity.
  • Upgraded Oil Pump: A high-performance oil pump can improve oil flow and pressure, which is vital for engine health, especially under heavy load.
  • Oil Catch Can: This helps to prevent oil vapors from entering the intake system, reducing carbon buildup and maintaining engine efficiency.

Cooling System Enhancements

Cooling is another critical aspect of maintaining the longevity of your LS engine. Here are some enhancements you should consider:

  • Upgraded Radiator: A larger, more efficient radiator can significantly improve cooling performance, especially during spirited driving or track days.
  • High-Performance Fans: Electric fans can provide better airflow and reduce engine temperature, especially in stop-and-go traffic.
  • Thermostat and Water Pump: Consider upgrading to a high-flow water pump and a lower-temperature thermostat to enhance coolant flow and engine temperature management.
  • Cooling Hoses: Use high-quality silicone hoses to withstand higher temperatures and pressures, ensuring reliable cooling system performance.

Suspension Upgrades for Stability

With the added power of an LS engine, your RX-7’s suspension must be upgraded to handle the increased performance. Here are some recommendations:

  • Coilover Suspension: Upgrading to a coilover system allows for adjustable ride height and damping, providing better handling and comfort.
  • Upgraded Sway Bars: Stiffer sway bars reduce body roll during cornering, improving stability and control.
  • Performance Bushings: Replacing factory rubber bushings with polyurethane or solid bushings enhances responsiveness and reduces flex.
  • Strut Braces: Adding strut braces can increase chassis rigidity, improving handling and cornering performance.

Regular Maintenance Practices

In addition to upgrades, regular maintenance is essential for the longevity of your RX-7 LS swap. Here are some practices to incorporate into your routine:

  • Frequent Oil Changes: Change the oil and filter regularly, following the manufacturer’s recommendations for intervals.
  • Inspect Cooling System: Regularly check coolant levels and inspect hoses and connections for leaks or wear.
  • Tire Maintenance: Keep tires properly inflated and rotated to ensure even wear and optimal handling.
  • Suspension Checks: Periodically inspect suspension components for wear and replace as necessary to maintain performance.

Conclusion

Maintaining longevity in your RX-7 LS swap requires a combination of thoughtful upgrades and regular maintenance. By focusing on oil management, cooling enhancements, and suspension upgrades, you can ensure your vehicle remains reliable and performs at its best. Happy driving!