Gas Racing can supply blow off valves to suit your high performance turbocharged motor.

PTE PB64 64mm Blow Off Valve

Made from lightweight 6061 and 7075 billet aluminium, PTE’s 64mm unit is satin black anodised to be aesthetically pleasing yet functional while offering long-lasting protection from the elements. 

It features a Kevlar-reinforced silicon rolling diaphragm for quick response and a hard-coat anodised valve stem for enhanced durability. The PB64 also has a CFD designed valve and valve body for the highest flow even at low lift, while the attached O-ring seal prevents leakage. 

PTE’s PB64 BOV also utilises an innovative and industry-first proprietary wave spring for added weight savings while still holding the valve closed under high vacuum idling. 

Designed to release back up pressure created when the throttle is closed via a spring-loaded valve diaphragm assembly, PTE’s PB64 BOV is a key component for preventing potentially harmful compressor surge back into the turbocharger to reduce wear on both the turbo and engine. 

Packaged with a weld-on aluminium mounting flange, spring adjustment screw, and two top ports for the ultimate in versatility and adjustability, the high-performance PB64 is generally compatible with most aftermarket manual and electronic boost controllers on the market today. 

Each unit is warranted to be free from manufacturer’s defect for a period of 12 months or 12,000 miles.

TiAL 50mm Q Blow Off Valve

This unit features a 50.5mm valve with excellent flow capacity for either supercharged or turbocharged applications. 

The body and all internal components are CNC-machined from 6061 aluminium alloy. The V-Band design aluminium mounting clamp is anodised and uses stainless steel hardware for a long lasting, corrosion-free, clean and unique appearance. 

The actuator has a high temp silicone Nomex-reinforced diaphragm for long life. 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 anodized-coated for wear resistance. 

TiAL’s Q Blow Off Valve comes with the following:
• Q BOV assembly
• TiAL V-band clamp
• V-band weld flange
• High pressure O-ring
• TiAL banjo-type air fitting and bolt with oversized 10mm hose barb for quick actuator response 

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. Flanges sold separately.