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The FA20 engine has gained popularity among car enthusiasts for its balance of performance and efficiency. One of the most effective upgrades for this engine is the intake manifold. Upgrading the FA20 intake manifold can lead to significant horsepower gains, often between 10 to 15 hp, while remaining budget-friendly, typically costing under $500.
Understanding the FA20 Engine
The FA20 engine, a flat-four engine developed by Subaru, is known for its lightweight design and low center of gravity. It offers a good mix of power and fuel efficiency, making it a popular choice for vehicles like the Subaru BRZ and Toyota 86. However, like any engine, there are always ways to enhance its performance.
Why Upgrade the Intake Manifold?
The intake manifold plays a crucial role in the engine’s performance. It is responsible for directing air into the engine’s cylinders. Upgrading the intake manifold can improve airflow, which can lead to more power and efficiency. Here are some reasons to consider upgrading:
- Improved airflow increases horsepower.
- Better throttle response enhances driving experience.
- Increased efficiency can lead to better fuel economy.
Performance Gains from Upgrading
Many enthusiasts report gains of 10 to 15 hp after upgrading the intake manifold. These gains can vary based on the specific manifold chosen and other modifications made to the vehicle. The following factors contribute to the performance increase:
- Better air distribution to each cylinder.
- Reduced turbulence in airflow.
- Ability to support higher RPMs.
Cost of Upgrading the Intake Manifold
One of the most appealing aspects of upgrading the FA20 intake manifold is the cost. Many quality options are available for under $500, making it an accessible modification for most enthusiasts. Here are some popular options:
- OEM replacement manifolds.
- Aftermarket performance manifolds.
- Used manifolds from reputable sources.
Installation Process
Installing a new intake manifold can be a straightforward process, especially for those with basic mechanical skills. Here’s a general overview of the steps involved:
- Gather necessary tools and parts.
- Remove the existing intake manifold.
- Clean the mounting surfaces.
- Install the new intake manifold.
- Reconnect all hoses and electrical connections.
- Test the engine for proper operation.
Choosing the Right Intake Manifold
When selecting an intake manifold, consider the following factors to ensure you make the right choice:
- Compatibility with your FA20 engine model.
- Material construction for durability and weight savings.
- Brand reputation and customer reviews.
Conclusion
Upgrading the FA20 intake manifold is a cost-effective way to boost performance, adding 10 to 15 hp without breaking the bank. With a variety of options available, enthusiasts can find a manifold that suits their needs and budget. Whether you’re looking for improved throttle response or enhanced power, this upgrade is worth considering for any FA20 owner.