Garrett GVW-50 External Wastegate

Garrett GVW-50 External Wastegate

Optimal boost control with the maximum flow possible – Garrett’s GVW-50 provides turbo enthusiasts with the best possible way to control extreme boost levels and combat boost creep in any racing turbocharger. This 50mm wastegate efficiently vents exhaust gasses around the turbine to regulate precise turbocharger shaft speeds while keeping backpressure to a minimum. Note: 50mm is ideal for high RPM or large displacement engines to avoid boost creep.

The GVW-50 kit has been CFD tested and is proven to deliver maximum flow, thermal efficiency, and superior durability. Made from high-temp stainless steel, this wastegate is rated for maximum exhaust temperatures of up to 1050 degrees C.

Garrett’s GVW-50 is no simple wastegate. Garrett engineers spent over a year designing the perfect wastegate. A project that was supposed to take a few months, ended up absorbing a whole team’s time for a year, and the end result is nothing short of remarkable. The GVW Wastegates (GVW-40, GVW-45, and GVW-50) provide 5% more flow than any competitor and complete consistency at high temperatures whether you’re drag racing or endurance racing. 

When shipped, the GVW-50 is set to 1 bar (14.5 psi) but it is configurable and can be set anywhere from 0.2 bar (2.9 psi) to 1.7 bar (24.7 psi). It also comes with everything you need to do the installation, including fasteners, springs, fittings, v-bands, clamps, and flanges. With the GVW-50, you’ll be ready to race and win, without overboosting.

External Wastegates: Features

• CFD tested for maximum flow and thermal efficiency
• Optimized actuation stability and temperature resistance for superior
  durability
• Replaceable valve and bushing components to increase service life
• Robust design for easy diaphragm replacement
• Liquid-cooled actuator ports for use on severe applications
  (up to 52% reduction in body temp)
• Anodized aluminum actuator cover
• Four Colors: Red | Blue | Black | Silver
• Three Sizes: 40mm | 45mm | 50mm
• Springs | Fittings | Flanges | V-bands included
• Standard Base Pressure: 1 Bar | 14.5 PSI
• Maximum Base Pressure:
  GVW40: 25 PSI | 1.7 Bar GVW45 | GVW50: 23 PSI | 1.6 Bar
• Minimum Base Pressure: 3 PSI | 0.2 Bar

Kit Contents

GVW Wastegates include all the following parts:

• Springs
• V-Band: Inlet | Outlet
• Outlet Flange
• Inlet Flange
• Valve Seat
• Washers: M8 | M10
• Water Fittings
• Banjo Bolt and Banjo Fittings
• Air Plugs

Material Data

The valve housing is cast from high temp stainless steel and rated for exhaust temperatures up to 1050° C. CFD optimized for maximum flow and thermal efficiency.

• Valve Housing: High temp stainless steel rated up to 1050° C
• Diaphragm: High temp Nomex reinforced elastomer
• Actuator Cover: Fully-machined anodized 6061 aluminum
• Valve Guide | Bushing: Nitronic 60
• Valve: high temp stainless steel with plated stem
• V-Band: CNC machined 304 stainless steel
• Flanges: Fully-machined 304 stainless steel
• Springs: 17/7 PH stainless steel

Mechanical Data

Garrett Vent | External Wastegates are created by the engineers that designed G-Series and GTX Gen II turbochargers. Available in three sizes: 40mm | 45mm | 50mm

• Valve Diameter: 40mm | 45mm | 50mm
• Valve Mass: (40mm)1.27kg | 45oz (45mm) 1.47kg | 52oz (50mm) 1.56kg | 55oz
• Max Spring Base Pressure: 1.7 bar | 25 psi (1:1 backpressure ratio)
• Minimum Spring Base Pressure: 0.2 bar | 3 psi (1:1 backpressure ratio)
• Port Fitting | Air: M10x1.0 to hose barb (hose ID 6mm | .25in)
• Port Fitting | Water: M8x1.0 to AN-3