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GARRETT VENT | EXTERNAL WASTEGATES
High flowing external wastegates for turbocharged racing and performance engines
Available in three sizes: 40mm | 45mm | 50mm and four color combinations: Red | Blue | Black | Silver.
Garrett Vent | External Wastegates regulate turbocharger shaft speed by venting exhaust gas around the turbine stage of the turbocharger. CFD optimized design maximizes flow and delivers optimum boost control. Advanced thermal optimization increases durability of the diaphragm. The cap design makes spring changes and serviceability of the entire GVW lineup easier and more reliable to perform..
When researching and testing common shortfalls of wastegates, we observed how heat cycling and normal wear can rapidly change their actuation characteristics. Garrett engineers created GVW as a high flowing product with low degradation in performance over its lifespan. Actuation data (opening and closing) in the chart was measured before and after extreme testing conditions. Results show the heat cycled GVW product maintains linear control of the wastegate as compared to the new product. Precise actuation of the GVW provides accurate calibration settings and performance throughout the lifespan of the product. Accurate wastegates, allow for optimum performance of the turbocharger.
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. Our Nomex reinforced elastomer diaphragm provides exceptional durability and fatigue resistance. GVW wastegates are set to 1 Bar | 14.5 PSI of base pressure and can be configured from 0.2 Bar | 2.9 PSI - 1.7 Bar | 24.7 PSI (considering 1:1 backpressure). The actuator design allows for multiple air/liquid fitting orientations. All fasteners, springs, fittings, V-bands, clamps, and flanges included.
- 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 GVW-40 GVW-45 GVW-50 F
- 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
- Max Thermal Stress (Non-Cooled): 270°C actuator body temp during thermal cycle test
- Max Thermal Stress (Liquid-Cooled): 130°C actuator body temp during thermal cycle test
- Max Exhaust Temp (Peak): Up to 1050°C
|Valve Mass||1.27kg | 45oz||1.47kg | 52oz||1.56kg | 55oz|
|Max Spring Base Pressure||1.7 bar | 25 psi (1:1 backpressure ratio)||1.7 bar | 25 psi (1:1 backpressure ratio)||1.7 bar | 25 psi (1:1 backpressure ratio)|
|Minimum Spring Base Pressure||0.2 bar | 3 psi (1:1 backpressure ratio)||0.2 bar | 3 psi (1:1 backpressure ratio)||0.2 bar | 3 psi (1:1 backpressure ratio)|
|Port Fitting (Air)||M10x1.0 to hose barb (Hose ID 6mm | .25in)||M10x1.0 to hose barb (Hose ID 6mm | .25in)||M10x1.0 to hose barb (Hose ID 6mm | .25in)|
|Port Fitting (Liquid)||M8x1.0 to AN-3||M8x1.0 to AN-3||M8x1.0 to AN-3|
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