TiAL® WastegatesTiAL MV-S-A 38mm "Long Neck" Wastegate w/ V-Band Flange Connection

The TiAL® MV-S-A Wastegate 38mm Wastegate unit is designed specifically for motorsport applications that can't utilize the water cooling ports on the standard MV-S wastegate. The MV-S-A or "Long Neck" has the standard 38mm valve but also has five heat fins that separate the casting from the actuator top. Born into the world of Motorsports, this wastegate can handle the harshest of conditions and give 100% performance, 100% of the time. It is the choice wastegate of many WRC teams.

With two upper and three lower air ports you won't even have to rotate the actuator to get to the air lines. Simply use the most convenient ports and block the others off with the included port plugs. The valve and lower housing are constructed from high temperature alloys for their unique combination of high corrosion, wear and galling resistance properties. The valve stem features a wear coating that is resistant to the corrosive effects of lead oxide, which is present when running leaded racing fuel. The actuator housing is CNC machined from lightweight billet aluminum which is available color anodized for a unique appearance. All TiAL® wastegates are designed to optimize actuator-to-valve area ratio to provide maximum control and a wide dynamic flow capacity.

The MV-S-A utilizes V-Band connections and includes both inlet and outlet mating flanges and clamps. The stainless steel flanges feature chamfered edges and are Counterbored to make welding simpler. Each wastegate also includes all MV-S-A actuator springs. Out of the box the wastegate is set at 24.66 psi (1.7 bar) but you can easily swap the springs to lower the spring pressure to as low as 4.35 psi (0.3 bar). All TiAL® springs are constructed from 17-7 PH Stainless Steel for consistent pressure delivery, even at high temperatures.

The MV series TiAL® wastegates also have integrated -4 AN water cooling ports that cycle a small amount of coolant through the actuator top to keep the temperatures down in extreme conditions. This feature is not required for typical street car applications but is a great addition for several scenarios, such as: road racing, low air flow in engine bay, actuator too close to exhaust components, rotary applications, etc. This feature uses little coolant so there is virtually no affect on the rest of the cooling system. Fittings are leak tested after installation from the factory and can be removed if not utilized.

TiAL® MV-S-A 38mm Wastegate Features:
• Multiple Air Ports - 3 Lower, 2 Upper (includes plugs for unused ports - M10 x 1.0 Thread)
• -4 AN Water Cooling Ports for Actuator Top (can be removed if not utilizing - M8 x 1.0 Thread)
• Five heat sinks raise the actuator top away from the casting to dissipate heat when water cooling can not be used
• Designed for Motorsport/Road Racing
• Stainless Steel Valve Housing
• Aluminum Actuator Housing (Anodized in Silver, Red, Blue, Purple or Black)
• Stainless Steel V-Band Inlet and Discharge Flanges
• Stainless Steel V-Band Inlet and Discharge Clamps
• High Temp Alloy Racing Valve w/ Coated Stem (protects from leaded fuel)
• High Temp Nomex Reinforced Actuator Diaphragm
• Stainless Steel Actuator Springs
• Stainless Steel Valve Seat
• Stainless Steel Valve Bushing
• Made in the USA!

TiAL® MV-S-A Wastegate Flange Counterbore Sizes:
• Inlet: 1-3/4" OD Tubing (1.75")
• Discharge: 1-1/2" OD Tubing (1.50")

What's Inside the Box:
• One of each available spring
• MV-S-A 38mm Wastegate Assembly
• Two TiAL® -4 AN removable water fittings
• Inlet V-Band Clamp
• Inlet V-Band Flange
• Outlet V-Band Clamp
• Outlet V-Band Flange
• MV-S-A Valve Seat
• 2 TiAL® Air Fittings
• Plugs for unused air ports