What does the spring pressure in a blow-off valve do?

The spring in a blow-off valve determines the amount of boost pressure required to open the valve and release excess air. An 11 PSI spring, like this purple one, means the valve will open when boost pressure reaches 11 pounds per square inch.

How do I know if I need an 11 PSI spring?

The correct spring pressure depends on your turbo system's overall boost levels and tuning. Generally, you want a spring that holds boost effectively but releases it before it causes compressor surge. Consult your turbo system's specifications or a professional tuner for guidance.

Can this spring be used with other brands of blow-off valves?

No, this 11 PSI spring is specifically designed to fit the TiAL Sport QR Blow-Off Valve. Using it with other brands may result in improper fitment and function.

TiAL Sport Blow Off Valve Spring 11 PSI Purple 002980

Name: TiAL Sport QR BOV 11 PSI Spring - Purple (1.5in)
Brand: TiALSport
SKU: tialsport-tial-sport-qr-bov-11-psi-spring-purple-1-5in-t14-538093
Price: 301.50 USD
Availability: BackOrder

TiAL Sport QR BOV 11 PSI Spring - Purple (1.5in)

$301.50

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

TiAL Sport QR BOV 11 PSI Spring - Purple (1.5in)

Key Features

This is the 11 PSI spring for the TiAL Sport QR Blow-Off Valve.
Designed for use with 1.5-inch TiAL Sport QR Blow-Off Valves.
The purple color indicates an 11 PSI pressure rating.
Helps control boost release to prevent compressor surge.
Well-built component from TiAL Sport for reliable performance.

This is a replacement spring for TiAL Sport QR Blow-Off Valves and is not vehicle-specific. Check your existing blow-off valve model and desired boost pressure for compatibility.

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Product Details

This product is the 11 PSI purple spring for the TiAL Sport QR Blow-Off Valve, designed for a 1.5-inch valve size. This spring is what sets the opening pressure for your blow-off valve, controlling when it releases excess boost pressure from your turbo system. Getting the right spring pressure is key to preventing compressor surge and ensuring your turbo spools efficiently.

TiAL Sport is known for well-built turbo components, and this spring is no different. It's made to work specifically with their QR blow-off valve, ensuring a precise fit and reliable operation. The 11 PSI rating is a popular choice for many turbocharged applications, offering a good balance between holding boost and releasing it smoothly. You'll want to make sure this pressure matches your turbo system's needs to avoid issues like compressor surge, which can damage your turbo.

When installing, remember that this spring is a direct replacement for the one already in your TiAL Sport QR BOV. Ensure your system is depressurized before you begin. This part is not CARB approved and cannot be shipped to California.