What is the purpose of a blow-off valve spring?

The spring in a blow-off valve determines the amount of boost pressure required to open the valve. A specific spring pressure ensures the valve opens at the correct boost level to protect your turbo from compressor surge.

How do I know which spring to use for my application?

You should select a spring that matches your engine's typical boost pressure. The goal is to have the valve open reliably when you lift off the throttle, but not so easily that it leaks boost when you're on it.

Can I use this spring with other brands of blow-off valves?

No, this spring is specifically designed for the TiAL Sport QRJ blow-off valve model. Using it with other brands may result in improper fitment or function.

TiAL Sport QRJ BOV 1.5 PSI Spring Purple

Name: TiAL Sport QRJ BOV 1.5 PSI Spring - Purple
Brand: TiALSport
SKU: tialsport-tial-sport-qrj-bov-1-5-psi-spring-purple-t14-538293
Price: 258.57 USD
Availability: BackOrder

TiAL Sport QRJ BOV 1.5 PSI Spring - Purple

$258.57

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 QRJ BOV 1.5 PSI Spring - Purple

Key Features

Fits TiAL Sport QRJ blow-off valves.
Provides a 1.5 PSI cracking pressure.
Helps prevent compressor surge in turbocharged engines.
Allows for fine-tuning of boost response.
Well-built for reliable performance.
Purple color indicates the 1.5 PSI rating.

This spring is designed to fit TiAL Sport QRJ blow-off valves. It is not compatible with other blow-off valve models.

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Product Details

If you're tuning a turbocharged engine and need to fine-tune your blow-off valve's response, this TiAL Sport 1.5 PSI spring is what you're looking for. It's designed to work with the TiAL Sport QRJ blow-off valve, allowing you to adjust how much boost pressure is needed to open the valve. This is crucial for preventing compressor surge, which can happen when the turbocharger's airflow is suddenly blocked, like when you lift off the throttle.

This purple spring offers a 1.5 PSI cracking pressure. By using different springs, you can match the blow-off valve's opening pressure to your engine's specific boost levels. A well-matched spring ensures the valve opens reliably at the right time, protecting your turbo and improving throttle response. The spring itself is well-built, designed for consistent performance under the heat and pressure of the engine bay.

Remember, this spring is intended for use with the TiAL Sport QRJ blow-off valve model. It's not CARB approved and cannot be shipped to California.