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The Mazda Miata is known for its lightweight and nimble handling, but when you swap in a powerful LS engine, the dynamics change significantly. Achieving over 700 horsepower requires not only the right engine but also supporting modifications to ensure reliability and performance. This article explores essential upgrades such as the TR6060 transmission, reinforced axles, and other critical components.
Understanding the LS Swap
Swapping a GM LS engine into a Miata transforms the car into a high-performance machine. However, the increase in power necessitates additional modifications to handle the increased stress on the drivetrain and suspension. Below are some key considerations for a successful LS swap.
Why Choose the LS Engine?
The LS engine family is popular among automotive enthusiasts for several reasons:
- Powerful Performance: LS engines offer a wide range of horsepower and torque options.
- Aftermarket Support: A vast selection of parts and upgrades are available.
- Weight-to-Power Ratio: The LS engine is relatively lightweight, enhancing the Miata’s performance.
Key Supporting Mods
To support a 700+ hp Miata LS swap, several modifications are necessary. These upgrades ensure that the car can handle the power and remain reliable on the street or track.
TR6060 Transmission
The TR6060 is a robust transmission option for high-horsepower applications. Its features include:
- Strength: Designed to handle high torque loads, making it ideal for LS swaps.
- Gear Ratios: Offers a variety of gear ratios to optimize performance.
- Aftermarket Support: Many upgrades and aftermarket parts are available.
When installing the TR6060, consider using a custom bellhousing and transmission mount to ensure proper fitment in the Miata chassis.
Reinforced Axles
With the added power from the LS engine, the stock Miata axles may not withstand the torque. Upgrading to reinforced axles is crucial:
- Material: Look for axles made from high-strength materials.
- Design: Consider a design that allows for higher articulation and strength.
- Compatibility: Ensure the axles are compatible with the Miata’s differential.
Upgraded Differential
An upgraded differential is essential to handle the increased power and torque. Options include:
- Limited Slip Differential (LSD): Provides better traction and handling.
- Higher Gear Ratio: A higher gear ratio can improve acceleration.
- Durability: Choose a differential designed for high-performance applications.
Suspension Upgrades
With the increase in power, the Miata’s suspension must be upgraded to maintain handling and safety:
- Coilovers: Adjustable coilovers allow for customization of ride height and damping.
- Upgraded Sway Bars: Stiffer sway bars improve cornering stability.
- Reinforced Chassis: Consider adding chassis bracing to reduce flex.
Cooling System Enhancements
High horsepower engines generate a significant amount of heat. Upgrading the cooling system is essential:
- High-Performance Radiator: A larger radiator can improve cooling efficiency.
- Upgraded Fans: Consider electric fans for better airflow.
- Oil Cooler: An oil cooler can help maintain optimal oil temperatures.
Fuel System Upgrades
To support the increased power, the fuel system must be capable of delivering adequate fuel flow:
- High-Flow Fuel Pump: A pump that can handle the demands of a 700+ hp engine.
- Upgraded Fuel Injectors: Larger injectors ensure proper fuel delivery.
- Fuel Lines: Consider upgrading to larger diameter fuel lines.
Final Considerations
When undertaking an LS swap in a Miata, careful planning and consideration of supporting modifications are crucial. Each upgrade plays a role in ensuring the vehicle remains reliable and performs at its best. By investing in the right components, you can enjoy a thrilling driving experience with your high-powered Miata.