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The Mazda Miata is known for its lightweight design and exceptional handling. However, enthusiasts often seek to enhance its performance beyond what the stock engine can provide. One popular modification is the LS swap, which involves replacing the Miata’s original engine with a powerful LS V8 engine. This article will explore the process of adding a supercharger to a boosted Miata LS swap to achieve over 700 horsepower.
Understanding the LS Swap
The LS engine series from General Motors has gained a reputation for its power potential and aftermarket support. Swapping an LS engine into a Miata requires careful planning and execution. Here are some key points to consider:
- Engine selection: Choose an LS engine variant that suits your power goals.
- Compatibility: Ensure that the engine mounts and transmission will fit within the Miata’s chassis.
- Weight distribution: An LS swap can alter the car’s weight balance, which affects handling.
Choosing the Right Supercharger
To achieve 700+ horsepower, selecting the right supercharger is crucial. Superchargers come in various types, each offering different benefits. Here are some options:
- Roots Supercharger: Provides instant power and torque but can be less efficient at higher RPMs.
- Centri Supercharger: Offers higher efficiency and is better for high RPM power.
- Twin-Screw Supercharger: Combines the benefits of both Roots and Centri designs, providing excellent efficiency and power.
Required Components for the Swap
When performing an LS swap and adding a supercharger, several components are necessary to ensure a successful installation. Below is a list of essential items:
- LS engine and transmission
- Engine mounts and adapter plates
- Supercharger kit specific to the LS engine
- Fuel system upgrades (injectors, pump, lines)
- Cooling system enhancements (radiator, intercooler)
- Exhaust system modifications
- Tuning software for engine management
Installation Steps
The installation process for an LS swap with a supercharger involves several steps. Here’s a general outline:
- Remove the existing Miata engine and transmission.
- Install the LS engine mounts and place the LS engine into the Miata chassis.
- Attach the transmission to the LS engine.
- Install the supercharger according to the manufacturer’s instructions.
- Upgrade the fuel system to support increased power demands.
- Modify the cooling system to accommodate the new engine setup.
- Connect the exhaust system, ensuring proper fitment and clearance.
- Tune the engine using appropriate software to optimize performance.
Tuning for Performance
After installation, tuning is critical to ensure the engine runs efficiently and safely. A proper tune maximizes power output and maintains reliability. Consider the following:
- Use a reputable tuning shop experienced with LS engines.
- Monitor air-fuel ratios to prevent lean conditions.
- Adjust ignition timing for optimal performance.
- Test drive and refine the tune based on real-world performance.
Safety Considerations
Boosting the power of a Miata through an LS swap and supercharger introduces new safety considerations. Keep these points in mind:
- Upgrade the braking system to handle increased speeds.
- Reinforce the chassis to manage additional power and torque.
- Ensure that all components are rated for the intended power levels.
- Regularly inspect the vehicle for wear and tear due to increased performance.
Conclusion
Adding a supercharger to a boosted Miata LS swap can yield impressive horsepower figures exceeding 700 HP. With careful planning, the right components, and proper tuning, enthusiasts can transform their Miata into a high-performance machine. Always prioritize safety and reliability to enjoy the full potential of your modified vehicle.