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The Subaru WRX is known for its performance and tuning potential. One of the most effective upgrades for maximizing horsepower is the installation of ARB head gaskets. These gaskets not only enhance engine performance but also improve reliability, especially in turbocharged applications.
Understanding Head Gaskets
Head gaskets play a crucial role in sealing the engine’s cylinder head to the engine block. They ensure that the combustion process occurs efficiently and prevent coolant and oil from mixing. Upgrading to ARB head gaskets can provide significant benefits for turbocharged engines.
Benefits of ARB Head Gasket Upgrades
- Increased Horsepower: Upgrading to ARB head gaskets can unlock over 30 horsepower gains.
- Improved Reliability: These gaskets are designed to withstand higher pressures and temperatures.
- Better Sealing: Enhanced sealing capabilities prevent leaks and ensure optimal performance.
- Compatibility: ARB head gaskets are specifically designed for Subaru WRX models.
Installation Process
Installing ARB head gaskets requires careful attention to detail. Here’s a step-by-step guide to ensure a successful installation:
- Preparation: Gather all necessary tools and components, including ARB head gaskets, torque wrench, and sealant.
- Remove Engine Components: Take off the intake manifold, exhaust manifold, and any other components obstructing access to the cylinder heads.
- Remove Old Gaskets: Carefully remove the old head gaskets, ensuring the surfaces are clean and free of debris.
- Install ARB Gaskets: Place the new ARB head gaskets onto the engine block, aligning them properly.
- Reassemble Engine: Reattach the cylinder heads, followed by the intake and exhaust manifolds.
- Torque Specifications: Follow the manufacturer’s torque specifications for the cylinder head bolts to ensure proper sealing.
Performance Gains
After the installation of ARB head gaskets, many Subaru WRX owners report noticeable improvements in performance. The following are typical gains experienced:
- Increased Boost Pressure: Higher boost levels can be sustained without the risk of gasket failure.
- Enhanced Throttle Response: Improved sealing leads to better engine responsiveness.
- Higher RPM Range: The engine can achieve higher RPMs safely, allowing for more power output.
Considerations Before Upgrading
While upgrading to ARB head gaskets offers many benefits, there are several considerations to keep in mind:
- Engine Tuning: Ensure that your engine is tuned to take full advantage of the increased horsepower.
- Supporting Mods: Consider other performance upgrades such as a better turbocharger, intercooler, and exhaust system.
- Professional Installation: If you’re not experienced, it may be wise to seek professional help for installation.
Conclusion
Upgrading to ARB head gaskets is a smart investment for any turbocharged Subaru WRX owner looking to unlock significant horsepower gains. With the right installation and supporting modifications, these gaskets can enhance both performance and reliability, making your driving experience even more exhilarating.