Charge Air Control Ð Made Easy The Compressed Gas BoostGate50 takes TurbosmartÕs award winning electronic BoostGate and simplifies the control system with a diaphragm style actuator built specifically for use with Compressed Gas / CO2 boost controllers. Designed to specifically to work with the high pressure levels that come along with CO2 and compressed gas boost control Turbosmart's Compressed Gas specific BoostGates feature a custom Nomex diaphragm design especially for "fill and spill" style boost control systems. Unlike a traditional external wastegates, which bypass exhaust gas around the turbine housing to reduce turbocharger shaft speed and effectively, boost levels Ð Charge Air Control is a controlled bleed of the compressed air on the cold side of the turbocharger system (ie boost). Mounted to the charge pipe, the Compressed Gas BoostGate can be used to modulate boost pressure directly, rather than the indirect method of traditional hot side boost control. Charge Air Control is specifically suited to applications like drag racing where turbocharger specifications have already been optimized and the turbine housing is not a limiting performance factor (ie engine pressure ratioÕs below 1). Turbosmart BoostGateÕs use a zero offset butterfly-styled valve that enables incredible resolution, enormous flow and the kind of boost control required to deliver the perfect pass, every time. Features Designed Specifically for CO2 Applications Simple Pneumatic Control 50mm (1.97in) Butterfly style zero-offset valve 383.9 CFM / 10.87m3 per minute flow Stainless steel (630) Butterfly and shaft Billet Aluminium Main Body 360-degree mounting options on V-band Clock-able actuator positions (3 x 120 Deg options)