Tial 50mm Blow Off Valve



Product Information

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; we believe this is the largest valve available with the highest flow capacity.

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 our 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.

How to Choose Spring Pressure
Measure the engine vacuum at idle and match the reading with the corresponding spring pressure rate in the chart below:
-22 and -23 in/Hg --> 12 PSI
-20 and -21 in/Hg --> 11 PSI
-16 and -19 in/Hg --> 10 PSI
-12 and -15 in/Hg --> 8 PSI
-8 and -11 in/Hg --> 6 PSI

  • Model: TIAL-50BOV
  • Manufactured by: Tial