Garrett GVW-45 External Wastegate

Garrett GVW-45 External Wastegate

Optimal boost control with the maximum flow possible – Garrett’s 45mm GVW-45 wastegate vents exhaust gasses around the turbine wheel to precisely regulate turbocharger shaft speed for any racing turbocharger. The GVW-45 Wastegate kit has been CFD tested to deliver thermal efficiency with superior durability and versatility.

Garrett engineers believed making a truly great wastegate would be easy. They quickly found out that wasn’t the case. It took the team a full year to design the GVW wastegates (GVW-40, GVW-45, GVW-50). And when they were finished, they’d crafted what is the most impressive wastegate available. Developed with the help of Formula 1 teams, this wastegate provides 5% more boost than any competitor and stays dead consistent in terms of performance no matter the temperature, and it does it for longer than any competitor. 

Cast from high-temp stainless steel and rated for exhaust temperatures up to 1050 degrees C, this 45mm wastegate comes set to 1 bar (14.5 psi) but includes all springs for you to configure from 0.2 bar (2.9 psi) to 1.7 bar (24.7 psi) base boost. Garrett provides everything you need to begin installation as soon as the product arrives, from fasteners, springs, and fittings, to V-bands, clamps, and flanges. You’ll be ready to race with the GVW-45.

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