The Garrett GTW3884JB is a journal bearing turbocharger built for enthusiasts who want serious top-end power without the lag time or premium cost of a ball bearing unit. Positioned as Garrett’s performance answer to the popular 6266 size turbo, it’s designed for builders running TiAL flanged manifolds and down-pipes who need a bolt-up solution that doesn’t compromise on flow potential. This is the turbo for high-horsepower street and race builds that demand a proven, cost-effective path to big numbers.
Specifications
- Compressor Wheel Inducer: 62.3mm
- Compressor Wheel Exducer: 84.4mm
- Compressor Wheel Trim: 54
- Turbine Wheel Inducer: 74.2mm
- Turbine Wheel Exducer: 64.6mm
- Turbine Wheel Trim: 76
- Bearing System: Journal Bearing
- Turbine Housing A/R: .82
- Optional Turbine Housing A/R: 1.03
- Turbine Housing Material: Stainless Steel
- Turbine Housing Inlet/Outlet: V-Band Inlet and V-Band Outlet
- Compressor Housing: T04S Frame
- Compressor Housing Inlet: 4″
- Compressor Housing Outlet: 2.5″
- Compressor Housing Feature: Built-in & machined anti-surge
- Optional Compressor Housing: T04E (3″ Inlet & 2″ Outlet, Compact Solution)
- HP Potential: 800HP flow potential
- Garrett P/N: GTW3884JB
- Also Known As: GTW6265JB
Performance & Application
Built around the GTW3884 platform, this journal bearing turbo is designed for high-horsepower street and race builds where big flow potential is the target. The compressor wheel, matched to the T04S compressor housing with its built-in machined anti-surge design, delivers strong airflow characteristics while managing surge at the top of the map. On the exhaust side, the turbine wheel housed in the stainless steel V-Band turbine housing is engineered to bolt directly to existing TiAL flanged turbo manifolds and down-pipes, simplifying installation for builders already running TiAL-compatible exhaust hardware. This journal bearing configuration is well suited to enthusiasts and shops looking for GTW-series performance at an aggressive price point.
Frequently Asked Questions
- What HP can the GTW3884JB support?
- The GTW3884JB carries an 800HP flow potential rating, making it suitable for high-horsepower street and race builds.
- Is this a ball bearing or journal bearing turbo?
- The GTW3884JB uses a journal bearing system, offering serious top-end power without the lag time or premium cost of a ball bearing unit.
- What is the A/R ratio of the turbine housing?
- The standard turbine housing A/R is .82, with a 1.03 A/R also available as an option.
- What does GTW6265JB refer to?
- GTW6265JB is an alternate name for the Garrett GTW3884JB turbocharger.
For builders chasing big horsepower with TiAL-compatible bolt-up simplicity, the Garrett GTW3884JB delivers proven GTW-series flow potential without the ball bearing price tag.
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