The Garrett GTW3884R delivers serious ball bearing performance for enthusiasts building toward big power without sacrificing the response demanded by street and competition applications alike. As Garrett’s engineered answer to the popular 6766 size turbo, this GTW Series unit combines proven aerodynamics with a configurable housing lineup, letting builders dial in the exact turbine housing and A/R combination their setup requires. It’s the right choice for anyone chasing serious flow capacity backed by Garrett’s ball bearing core technology.
Specifications
- Compressor Wheel Inducer: 67.3mm
- Compressor Wheel Exducer: 84.4mm
- Compressor Wheel Trim: 64
- Turbine Wheel Inducer: 74.2mm
- Turbine Wheel Exducer: 64.6mm
- Turbine Wheel Trim: 76
- Bearing System: Ball Bearing
- HP Potential: 950HP potential flow
- Compressor Housing: T04S Frame with 4″ inlet, 2.5″ outlet, and built-in & machined anti-surge
- Turbine Housing Option: .63 A/R (T3 Inlet; 4 Bolt, 2.5″ V-band or 3.0″ V-Band Outlet)
- Turbine Housing Option: .63 A/R (V-Band machined Inlet; 2.5″ V-band Outlet)
- Turbine Housing Option: .68 A/R (T4 Non-Divided Inlet; V-band 3″ Outlet)
- Turbine Housing Option: .78 A/R (T3 Divided Inlet; V-band 3″ Outlet)
- Turbine Housing Option: .81 A/R (T4 Non-Divided Inlet; V-band 3″ Outlet)
- Turbine Housing Option: .82 A/R (T3 Inlet; 4 Bolt, 5 Bolt Ford Style, 2.5″ V-band or 3.0″ V-Band Outlet)
- Turbine Housing Option: .82 A/R (V-Band machined Inlet; 2.5″ V-band Outlet); ATP Stainless V-band (Tial Compatible)
- Turbine Housing Option: .96 A/R (T4 Non-Divided Inlet; V-band 3″ Outlet)
- Turbine Housing Option: 1.06 A/R (T3 Non-Divided Inlet; V-band 3.0″ Outlet)
- Turbine Housing Option: 1.16 A/R (T3 Divided Inlet; 4 Bolt, 3″ Outlet)
- Turbine Housing Option: 1.16 A/R (T3 Divided Inlet; 3″ V-band Outlet via welded ring)
- Garrett P/N: GTW3884R
- Also Known As: GTW6765R
Performance & Application
Built for those pushing into serious power territory, the GTW3884R is engineered as a direct performance solution to the widely popular 6766 size turbo class. With ball bearing construction and a flow-optimized wheel design, it’s suited to builders who demand strong top-end capability without giving up the responsiveness needed for real-world street and competition driving. The selectable turbine housing lineup allows this turbo to be tailored across a wide range of A/R ratios and outlet configurations, giving builders flexibility to match spool characteristics and flange requirements to their specific setup.
Frequently Asked Questions
- What HP can the GTW3884R support?
- The GTW3884R has a 950HP potential flow rating.
- Is the GTW3884R a ball bearing or journal bearing turbo?
- The GTW3884R is a ball bearing turbocharger.
- What does GTW6765R refer to?
- GTW6765R is an alternate name (alias) for the Garrett GTW3884R.
- What compressor housing configuration does the GTW3884R use?
- It uses a T04S Frame compressor housing with a 4″ inlet, 2.5″ outlet, and built-in & machined anti-surge design.
For builders who need Garrett ball bearing performance with the freedom to configure the exact turbine housing and A/R for their power goals, the GTW3884R (GTW6765R) stands as a proven, flexible choice.
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