Blow off valve (BOV) accessories are components and add-ons designed to enhance the performance, functionality, and aesthetics of blow off valves in vehicles, particularly in turbocharged or supercharged engines. Here are some common blow off valve accessories:
1. BOV Flanges and Adapters:
Flanges and adapters allow for the proper installation and mounting of blow off valves onto the intercooler piping or intake manifold.
They come in various sizes and configurations to accommodate different types of blow off valves and piping setups.
2. BOV Springs and Adjustment Kits:
Springs and adjustment kits enable fine-tuning of the blow off valve's spring tension and release pressure.
These kits allow users to adjust the BOV's response characteristics, such as the rate at which it opens and closes, to suit specific performance requirements.
3. BOV Recirculation Kits:
Recirculation kits allow blow off valves to be converted from atmospheric (vented to the atmosphere) to recirculating (redirecting excess boost pressure back into the intake system).
Recirculating BOV setups help maintain optimal air/fuel ratios and prevent stalling or drivability issues that can occur with atmospheric BOV setups.
4. BOV Sound Inserts and Silencers:
Sound inserts and silencers modify the sound output of blow off valves, reducing or altering the loud "whoosh" or "chirping" sound commonly associated with venting excess boost pressure.
These accessories are often used to comply with noise regulations or to achieve a more subtle or discreet sound profile.
5. BOV Gaskets and O-Rings:
Gaskets and O-rings ensure proper sealing between the blow off valve and the mounting flange or adapter, preventing boost leaks and ensuring optimal performance.
High-quality gaskets and O-rings are essential for maintaining a tight seal under the high pressures and temperatures encountered in turbocharged or supercharged applications.
6. BOV Flange Weld-On Kits:
Weld-on kits provide a permanent mounting solution for blow off valves by allowing them to be welded directly onto the intercooler piping or intake manifold.
These kits are commonly used in custom or high-performance setups where precise positioning of the blow off valve is critical for optimal performance.
7. BOV Blow-Through Kits:
Blow-through kits modify the intake system to allow blow off valves to operate in blow-through configurations, where they are positioned upstream of the mass airflow sensor (MAF) or air meter.
This setup ensures accurate metering of airflow by the MAF sensor and prevents the disruption of airflow readings caused by atmospheric venting.
