The Garrett GTW3684JB delivers serious journal bearing performance in a proven 62mm platform, built for enthusiasts who demand strong flow potential without the premium price tag of a ball bearing unit. Backed by Garrett’s GTW Series engineering, this turbo is the go-to upgrade for builders chasing a high-power street or race setup with a T3 inlet configuration and a modern V-band turbine outlet. Whether you’re stepping up from a factory turbo or building a dedicated performance platform, this unit delivers Garrett-grade reliability at a competitive price point.
Specifications
- Compressor Wheel Inducer: 62.3mm
- Compressor Wheel Exducer: 84.4mm
- Compressor Wheel Trim: 54
- Turbine Wheel Inducer: 71.0mm
- Turbine Wheel Exducer: 61.9mm
- Turbine Wheel Trim: 76
- A/R Ratio: .82
- Bearing Type: Journal Bearing
- Turbine Housing Inlet: T3 Undivided Inlet
- Turbine Housing Outlet: Welded GT 3″ V-Band Outlet
- Compressor Housing Frame: T04S Frame
- Compressor Housing Inlet: 4″
- Compressor Housing Outlet: 2.5″
- Compressor Housing Feature: Built-in & machined anti-surge
- HP Potential: 750HP potential flow
- Garrett P/N: GTW3684JB
- Also Known As: GTW6262JB
Performance & Application
The GTW3684JB is engineered for builders targeting high-horsepower goals on a journal bearing budget, offering Garrett’s performance solution to the popular 6262 size turbo. Its 62mm compressor wheel and .82 A/R turbine housing combination is suited for enthusiasts building serious street or race applications who need strong flow capacity. The T3 undivided inlet and welded GT 3″ V-band outlet turbine housing configuration provide flexibility for modern turbo system builds. This is GTW Series performance delivered at a competitive price point compared to ball bearing alternatives.
Frequently Asked Questions
- What HP can the GTW3684JB support?
- The GTW3684JB offers 750HP potential flow.
- Is this a ball bearing or journal bearing turbo?
- The GTW3684JB is a 62mm journal bearing turbo.
- What is the A/R ratio of the GTW3684JB?
- The GTW3684JB comes with a .82 A/R turbine housing.
- What does GTW6262JB refer to?
- GTW6262JB is an alternate name for the Garrett GTW3684JB, referring to the popular 6262 size turbo.
For enthusiasts seeking Garrett-engineered reliability and strong flow potential without ball bearing pricing, the GTW3684JB delivers proven GTW Series performance built for serious power goals.
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