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The Mazda Miata is a beloved sports car known for its lightweight design and engaging driving experience. Among the various modifications enthusiasts pursue, the LS swap has gained significant popularity. This article explores the differences between a Miata equipped with an LS engine and one with the stock 1.8L engine, focusing on power gains and handling improvements.
Understanding the LS Swap
The LS swap involves replacing the Miata’s original engine with a General Motors LS series V8 engine. This modification is popular for several reasons:
- Significantly increases horsepower and torque.
- Improves acceleration and overall performance.
- Offers a wide range of aftermarket support and tuning options.
Comparing Power Outputs
To understand the benefits of an LS swap, it’s essential to compare the power outputs of both engines:
- Stock 1.8L Engine: Produces approximately 130 horsepower and 110 lb-ft of torque.
- LS Engine: Depending on the variant, an LS engine can produce between 300 to 500 horsepower and significantly more torque.
This drastic increase in power allows the LS-swapped Miata to achieve much faster acceleration times and higher top speeds compared to the stock model.
Handling Characteristics
While power is a significant factor, handling is equally important for a sports car. The weight distribution and overall balance of the vehicle can change dramatically with an LS swap.
Weight Distribution
The stock Miata has a near-perfect 50/50 weight distribution. However, the LS engine is heavier than the original 1.8L engine, affecting this balance:
- Stock Miata: 50/50 weight distribution.
- LS Swapped Miata: Weight distribution can shift to 55/45 or worse, depending on installation.
To combat this, many enthusiasts install lightweight components and adjust suspension settings to maintain handling performance.
Suspension Adjustments
Upgrading the suspension is crucial for an LS-swapped Miata to handle the increased power and weight:
- Upgraded coilovers for better damping and adjustability.
- Stiffer sway bars to reduce body roll.
- Reinforced chassis components to handle increased stress.
These modifications help improve cornering stability and overall handling, making the car more enjoyable to drive.
Performance Testing Results
To quantify the differences between the two setups, performance tests were conducted on both the LS-swapped Miata and the stock 1.8L Miata. The results were promising for the LS swap:
- 0-60 mph: Stock 1.8L – 8.0 seconds; LS Swapped – 4.5 seconds.
- Quarter Mile: Stock 1.8L – 16.5 seconds; LS Swapped – 12.0 seconds.
- Top Speed: Stock 1.8L – 120 mph; LS Swapped – 150 mph.
These results showcase the substantial performance gains achieved through the LS swap, making it a compelling choice for enthusiasts seeking more power.
Potential Downsides of the LS Swap
While the LS swap offers many advantages, there are also potential downsides to consider:
- Increased weight: The added weight of the LS engine can affect handling if not properly managed.
- Cost: The swap can be expensive due to parts and labor.
- Complexity: The installation process is more complex than a simple engine replacement.
These factors should be carefully weighed against the performance benefits when considering an LS swap.
Conclusion
In summary, the LS swap offers significant power gains and can enhance the driving experience of a Miata, but it requires careful consideration of handling dynamics and installation complexity. For those willing to invest time and resources, the LS-swapped Miata can provide exhilarating performance and a thrilling ride.