RHP 50mm Blow Off Valve methanol spooling up quickly yet still

spooling up quickly yet still charging at the top

bottom of spring

A BOV should be considered mandatory with any turbo or centrifugal supercharger

Hitting the closed throttle blade causes the pressure spike to reverse flow back through the turbo

RHP 50mm Blow Off Valve methanol spooling up quickly yet stillRHP 50 MM BLOW OFF VALVES The Blow Off Valve (BOV) is a critical part of any forced induction motor equipped with a turbocharger or centrifugal supercharger. The blow off valve operates by eliminating the pressure spike that occurs when closing the throttle suddenly at high rpm and or boost. Without the BOV, boost pressure and flow in the discharge tract from the turbo or blower would hit the closed throttle body and create even more pressure. Hitting