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The Nissan GT-R R35 is a remarkable vehicle, renowned for its impressive performance and tuning potential. When pushing the power beyond 600 horsepower, upgrading components like the blow-off valve (BOV) becomes essential. This article provides insights into the best size and brand recommendations for blow-off valves suitable for high-powered R35 GT-Rs.
Understanding Blow Off Valves
Blow-off valves serve a critical function in turbocharged engines. They release excess pressure from the intake system when the throttle is closed, preventing compressor surge and maintaining turbo efficiency. Selecting the right BOV is crucial for performance, reliability, and sound.
Factors to Consider When Choosing a Blow Off Valve
- Size: The size of the BOV must match the turbo setup to ensure proper airflow and prevent boost leaks.
- Material: Look for valves made from high-quality materials such as aluminum or stainless steel for durability.
- Sound: Different valves produce varying sounds. Choose one that fits your personal preference.
- Adjustability: Some BOVs offer adjustable spring tension, allowing for fine-tuning based on your setup.
- Brand Reputation: Opt for brands known for their reliability and performance in the aftermarket tuning community.
Recommended Blow Off Valve Sizes
When upgrading the blow-off valve on a Nissan GT-R R35 with over 600 horsepower, the size of the valve is critical. Here are the recommended sizes:
- 1.5 inches: Ideal for setups producing up to 600 horsepower. Provides a good balance between performance and sound.
- 2.0 inches: Recommended for higher horsepower applications, offering improved flow and quicker response times.
- 2.5 inches: Suitable for extreme builds, ensuring maximum airflow and minimal pressure loss.
Top Blow Off Valve Brands for Nissan GT-R R35
Several brands stand out in the aftermarket scene for their quality and performance. Here are some top recommendations:
- HKS: Known for their reliability and performance, HKS BOVs are popular among GT-R enthusiasts. The HKS SSQV series is particularly favored for its distinctive sound and efficient operation.
- Greddy: Greddy offers a range of BOVs that are known for their durability and performance. The Type S model is a great choice for those looking for adjustability and a strong venting response.
- Apexi: The Apexi blow-off valves are recognized for their quality construction and performance. They provide excellent response and are available in various sizes to suit different setups.
- TurboSmart: TurboSmart BOVs are designed for high-performance applications and offer a range of features, including adjustable spring tension and a variety of sizes.
- TiAL: TiAL valves are known for their robust build quality and are a favorite among serious tuners. Their Q series offers a large range of sizes and excellent flow characteristics.
Installation Tips for Blow Off Valves
Proper installation of the blow-off valve is crucial for optimal performance. Here are some tips:
- Location: Install the BOV as close to the throttle body as possible to reduce the length of the vacuum line and improve response.
- Vacuum Source: Ensure the BOV is connected to a reliable vacuum source for proper operation.
- Tightening: Use a torque wrench to ensure all bolts are tightened to the manufacturer’s specifications to prevent leaks.
- Testing: After installation, test the system under load to ensure the BOV is functioning correctly and there are no boost leaks.
Conclusion
Choosing the right blow-off valve for your Nissan GT-R R35, especially when pushing over 600 horsepower, is essential for maintaining performance and reliability. By considering the size, brand, and installation tips outlined in this article, you can ensure your vehicle performs at its best. Whether you prefer the sound of an HKS or the reliability of a TiAL, the right BOV will enhance your driving experience.