Tial Q Blow Off Valve is an updated design which outflows the original 50mm blow off valve by 60%! Designed for turbo-charged and super-charged applications. The body and all internal components are CNC-machined from 6061 aluminum alloy. It features a large 1.98 inch (50.5mm) valve for unrestricted 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 a 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.

Aluminum flange included.

Spring Pressure Guide:

• Use 6psi for engine vacuum -8in/hg to -11in/hg
• Use 8psi for engine vacuum -12in/hg to -15in/hg
• Use 10psi for engine vacuum -16in/hg to -19in/hg
• Use 11psi for engine vacuum -20in/hg to -21in/hg