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The GReddy Type-S Blow Off Valve (BOV) is a popular choice among drag racers looking to achieve optimal performance in high horsepower applications. This guide will walk you through the setup process for using the GReddy Type-S BOV in vehicles producing 700+ horsepower, ensuring reliability and efficiency during drag racing.
Understanding the GReddy Type-S BOV
The GReddy Type-S BOV is designed to vent excess boost pressure from the intake system, preventing compressor surge and improving throttle response. Its adjustable spring tension allows for customization based on the specific requirements of your high horsepower setup.
Key Components Needed
- GReddy Type-S BOV
- Vacuum hose
- Mounting hardware
- Silicone couplers
- Boost gauge (optional)
Installation Steps
Step 1: Prepare Your Vehicle
Before starting the installation, ensure that your vehicle is parked on a level surface and the engine is cool. Disconnect the battery to prevent any electrical issues during the installation process.
Step 2: Locate the Charge Pipe
Identify the charge pipe in your intake system where the BOV will be installed. This is typically located between the turbocharger and the throttle body. Remove any existing components that may obstruct access to this area.
Step 3: Install the BOV
Using the provided mounting hardware, secure the GReddy Type-S BOV to the charge pipe. Ensure that it is positioned correctly to allow for proper venting. Use silicone couplers to connect the BOV to the charge pipe if necessary.
Step 4: Connect the Vacuum Line
Attach a vacuum hose from the BOV to a suitable vacuum source on the intake manifold. This connection is crucial for the BOV to operate effectively, as it relies on manifold pressure to function properly.
Step 5: Reassemble and Check for Leaks
Once the BOV is securely installed and the vacuum line is connected, reassemble any components that were removed. Reconnect the battery and check for any leaks by starting the engine and inspecting the installation area.
Tuning Considerations
After installation, tuning may be necessary to optimize performance. The GReddy Type-S BOV is adjustable, allowing you to fine-tune the spring tension based on your boost levels and personal preference.
Adjusting the Spring Tension
To adjust the spring tension, follow these steps:
- Remove the BOV from the charge pipe.
- Use a flathead screwdriver to adjust the tension screw on the top of the BOV.
- Reinstall the BOV and test drive to determine the effectiveness of the adjustment.
Common Issues and Troubleshooting
While the GReddy Type-S BOV is reliable, issues can arise. Here are some common problems and their solutions:
- Sticking Valve: Ensure the BOV is clean and free of debris.
- Boost Leaks: Inspect all connections for tightness and replace any damaged hoses.
- Improper Venting: Check the vacuum line connection and ensure it is secure.
Conclusion
The GReddy Type-S BOV is an excellent choice for drag racers seeking to enhance their vehicle’s performance. By following this setup guide, you can ensure proper installation and optimal function in high horsepower applications. Regular maintenance and tuning adjustments will further enhance the reliability and effectiveness of your BOV setup.