TiAL Q 50mm Blow Off Valve

Manufacturer : TiAL Sport
Part Number : TIAL-BOV-Q

Price $259.95


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Q is TiAL's first revision of the nine year old legendary TiAL 50mm Blow Off Valve. The Q bolts right up to any standard TiAL flange, no re-welding needed.

For use on turbo-charged and super-charged applications (Paxton, Vortec, etc.). The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 in (50.5mm) valve.

The V-Band design aluminum mounting clamp gives a very clean and unique appearance. The clamp is anodized and 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 TiAL's own machined aluminum banjo-type air fitting and bolt, with over sized 10mm hose barb for quick actuator response. The actuator has a high temp silicone Nomex-reinforced diaphragm for long life.

The TiAL Q Blow Off Valve is available with either an aluminum, mild steel, or 304L stainless steel weld base mounting flange. The 6061 aluminum body of the BOV is available anodized in silver, black, red, blue, and purple with either a 6 psi, 8 psi, 10 psi, or 11 psi spring.

Through countless hours of R&D TiAL was able to make the same size valve flow 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!

  • What's Inside the Box:
  • Q BOV Assembly
  • TiAL V-Band Clamp
  • V-Band Weld Flange
  • High Pressure O-Ring
  • TiAL Air Fitting

TiAL Q Spring Ratings
Spring Color Spring Rate Use for Engine Vacuum Rating
Black 6 psi (.41 bar) -8 to -11 in/Hg
White 8 psi (.55 bar) -12 to -15 in/Hg
Un-painted 10 psi (.69 bar) -16 to -19 in/Hg
Pink 11 psi (.76 bar) -20 to -21 in/Hg


This product was added to our catalog on Monday 02 March, 2009.

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