The Garrett GTW3884JB delivers serious flow potential in a journal bearing platform built for enthusiasts chasing big power without the premium price tag of a ball bearing unit. Designed as Garrett’s performance answer to the popular 6466 size turbo, this unit is ideal for builders who want a proven, high-capacity turbo that bolts straight up to existing TiAL flanged manifolds and down-pipes. Whether you’re building a dedicated race car or a serious street/strip platform, this turbo is engineered to deliver strong top-end power at a competitive price point.
Specifications
- Compressor Wheel Inducer: 64.3mm
- Compressor Wheel Exducer: 84.4mm
- Compressor Wheel Trim: 58
- Turbine Wheel Inducer: 74.2mm
- Turbine Wheel Exducer: 64.6mm
- Turbine Wheel Trim: 76
- Turbine Housing A/R: .82
- Turbine Housing Inlet: V-Band
- Turbine Housing Outlet: V-Band
- Turbine Housing Material: Stainless Steel
- Compressor Housing Frame: T04S Frame
- Compressor Housing Inlet: 4″
- Compressor Housing Outlet: 2.5″
- Compressor Housing Feature: Built-in & machined anti-surge
- Bearing Type: Journal Bearing
- HP Capacity: 900HP potential flow
- Garrett P/N: GTW3884JB
- Also Known As: GTW6465JB
Performance & Application
This 64mm journal bearing turbo is built for enthusiasts targeting serious horsepower without stepping up to a ball bearing platform. The 58-trim compressor wheel paired with the .82 A/R stainless steel V-band turbine housing is tuned to deliver strong flow characteristics suited for high-output builds. Because the turbine housing mounts directly to existing TiAL flanged turbo manifolds and down-pipes, this unit is a natural fit for builders already running TiAL-style V-band setups looking to upgrade turbo capacity. It stands as Garrett’s cost-effective alternative to the 6466 platform, giving serious builders big power potential at a competitive price.
Frequently Asked Questions
- What HP can the GTW3884JB support?
- The GTW3884JB has a 900HP potential flow capacity.
- Is this a ball bearing or journal bearing turbo?
- The GTW3884JB is a journal bearing turbo.
- What is the A/R ratio of the included turbine housing?
- It includes a .82 A/R stainless steel V-band turbine housing. A 1.03 A/R V-Band turbine housing option is also available in place of the .82 A/R.
- What does GTW6465JB refer to?
- GTW6465JB is an alternate name (alias) for the Garrett GTW3884JB.
- Is this turbine housing compatible with TiAL manifolds?
- Yes, the turbine housing is compatible and mounts to existing TiAL flanged turbo manifolds and down-pipes.
For builders who need a high-flowing, cost-effective alternative to the 6466 platform with direct TiAL compatibility, the GTW3884JB delivers the performance and value to back a serious build.
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