TIAL Sport Q Vent To Atmosphere Blow Off Valve

Q is the first revision of the original TiAL BOV. The Q bolts up to any standard TiAL flange, no re-welding. This is the highest flowing BOV on the market. It's offered with a variety of springs for different vacuum levels and a special spring specifically for supercharged vehicles. The V-Band design aluminum mounting clamp gives a very clean and unique appearance. The clamp uses Stainless Steel hardware for a long-lasting, corrosion-free appearance.

The valve seal utilizes a Viton O-ring that is clamped in place to prevent the possibility of sticking to the seat and pulling out. The valve stem and guide are Teflon-lubricated, hard anodize-coated for wear resistance. The Blow Off Valve also comes with a machined aluminum banjo-type air fitting and bolt, with an oversized 10mm hose barb for quick actuator response. The actuator has a high temp silicone Nomex-reinforced diaphragm for long life.

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Features

  • The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve.
  • An aluminum or mild steel weld base mounting flange is furnished with each unit. Stainless Steel is available at an additional cost. The use of 6061 aluminum allows the housing to be anodized with a selection of colors.
  • Flows a staggering 60% more than the original design - that means 60% more air is blown off per cycle! This is the highest flowing BOV on the market.
  • A single Q BOV can support up to 1,800hp
  • -2psi spring for supercharged applications
  • Spring Pressures: -2psi, -6psi, -8psi, -10psi, -11psi, -12psi
  • Thread: M10 x 1.0

Applications

  • Universal

What's in the box?

  • Q Assembly
  • TiAL Vband Clamp
  • Vband Weld Flange
  • TiAL Air Fitting
  • High Pressure O-ring

Warranty

  • MFGR. Limited Warranty

What Spring Pressure Do I Need?

The spring pressure is determined by your vacuum at idle. It is not related to how much boost you want to run. Check what your vacuum is at idle and select the matching spring.

• 2 PSI (For Supercharger Only)
• 6 PSI (-8 to -11 in/Hg)
• 8 PSI (-12 to -15 in/Hg)
• 10 PSI (-16 to -19 in/Hg)
• 11 PSI (-20 to -21 in/Hg
• 12 PSI (-22 to -24 in/Hg)

Customer Reviews

Based on 6 reviews
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Andres R. (Soddy-Daisy, US)

Great product fast shipping!

A
Andres R.
Great product fast shipping!

Great product fast shipping!

E
Ernest N. (Las Vegas, US)
Tial

My tial blow off vaulve shipped quick and is amazing.

E
Ernest N.
Tial

My tial blow off vaulve shipped quick and is amazing.

TiAL

TiAL Sport is a premium manufacturer of high-performance turbocharger components, known for its precision-engineered wastegates, blow-off valves, and turbocharger housings. Established in 1994, the brand is celebrated for its commitment to quality and innovation, using lightweight materials like aluminum and titanium to ensure durability and optimal performance. TiAL products are designed for both street and motorsport applications, offering reliability under extreme conditions. Their reputation for excellence has made TiAL a trusted choice among tuners and racing enthusiasts worldwide.

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