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The Miata is a beloved platform for car enthusiasts, known for its lightweight design and exceptional handling. However, many enthusiasts seek to increase the power and performance of their Miatas by swapping in a more powerful engine. One popular choice is the LS engine swap, which can easily push the Miata’s horsepower beyond 500. In this article, we will provide a detailed cost breakdown of building a 500+ HP Miata LS swap using parts from Summit Racing.
Understanding the LS Engine Swap
The LS engine series, originally developed by General Motors, has gained immense popularity in the automotive community for its power potential and aftermarket support. The lightweight nature of the LS engine makes it a perfect candidate for the Miata, allowing for a significant power-to-weight ratio improvement. The following sections will break down the costs associated with this swap.
Key Components and Their Costs
- Engine: $5,000 – $7,000
- Transmission: $1,500 – $3,000
- Engine Mounts: $200 – $500
- Wiring Harness: $300 – $600
- Exhaust System: $500 – $1,200
- Cooling System: $300 – $800
- Fuel System: $400 – $900
- Drivetrain Components: $1,000 – $2,500
- Miscellaneous Parts: $500 – $1,000
1. Engine
The heart of the swap is, of course, the LS engine itself. Depending on the specific model and condition, prices can vary significantly. A used LS engine can be found for around $5,000, while a new or crate engine may reach up to $7,000.
2. Transmission
Choosing the right transmission is crucial for maximizing performance. Options include the T56, 4L60E, or 6L80, with prices ranging from $1,500 to $3,000 based on condition and features.
3. Engine Mounts
Custom engine mounts are necessary to fit the LS engine into the Miata’s engine bay. These typically cost between $200 and $500, depending on the manufacturer and design.
4. Wiring Harness
A compatible wiring harness is essential for integrating the LS engine with the Miata’s electrical system. Expect to spend around $300 to $600 for a quality harness.
5. Exhaust System
An aftermarket exhaust system will not only improve performance but also enhance the sound of your Miata. Prices for exhaust systems range from $500 to $1,200, depending on the materials and design.
6. Cooling System
To keep the LS engine running cool, an upgraded cooling system is necessary. This can include a new radiator, fans, and hoses, costing between $300 and $800.
7. Fuel System
Upgrading the fuel system is critical for supporting the increased power levels. This may involve new fuel pumps, injectors, and lines, with costs ranging from $400 to $900.
8. Drivetrain Components
To handle the increased power, you may need to upgrade the drivetrain components, such as the differential and axles. These components can cost between $1,000 and $2,500.
9. Miscellaneous Parts
Finally, budget for miscellaneous parts that may be required during the swap, such as hoses, fittings, and fluids, which can add another $500 to $1,000 to your total cost.
Total Cost Summary
When you add up all the components, the total cost for a 500+ HP Miata LS swap can range from approximately $10,000 to $18,000, depending on the choices you make and whether you opt for new or used parts. Here’s a quick summary:
- Total Engine Cost: $5,000 – $7,000
- Total Transmission Cost: $1,500 – $3,000
- Total Engine Mounts Cost: $200 – $500
- Total Wiring Harness Cost: $300 – $600
- Total Exhaust System Cost: $500 – $1,200
- Total Cooling System Cost: $300 – $800
- Total Fuel System Cost: $400 – $900
- Total Drivetrain Components Cost: $1,000 – $2,500
- Total Miscellaneous Parts Cost: $500 – $1,000
Conclusion
Building a 500+ HP Miata LS swap is an exciting project that can significantly enhance performance. By sourcing quality parts from Summit Racing and understanding the associated costs, you can make informed decisions that align with your budget and performance goals. Whether you’re a seasoned builder or a newcomer to engine swaps, this guide serves as a valuable resource for your Miata LS swap journey.