The Garrett GTW3684JB delivers proven mid-range performance for enthusiasts building a serious street or track application around the popular 6262 turbo platform. Its journal bearing design and T4 undivided turbine housing make it an ideal choice for builders who want strong spool characteristics without the premium cost of a ball bearing unit. This is the turbo for those who demand real performance capacity backed by Garrett engineering, at a price point that makes sense.
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
- Compressor Housing: T04S Frame .70 A/R
- Compressor Inlet: 4″
- Compressor Outlet: 2.5″
- Compressor Housing Feature: Built-in & machined anti-surge
- Turbine Housing A/R: .82
- Turbine Housing Configuration: T4 undivided
- Turbine Housing Exit: 3″ GT V-band (90mm flange OD, 81mm centering)
- Bearing Type: Journal bearing
- HP Potential Flow: 750 HP
- Garrett P/N: GTW3684JB
- Also Known As: GTW6262JB
Performance & Application
The GTW3684JB is part of Garrett’s GTW Series, engineered as a performance-focused alternative to the popular 6262 size turbo. Its T04S Frame compressor housing with built-in and machined anti-surge technology is paired with a T4 undivided turbine housing to deliver strong mid-range response. This combination gives builders a turbo capable of supporting up to 750 HP, suited to those who want a responsive, high-flowing platform without stepping up to ball bearing pricing. It’s a strong fit for enthusiasts prioritizing value alongside proven Garrett performance.
Frequently Asked Questions
- What HP can the GTW3684JB support?
- The GTW3684JB has a 750 HP potential flow capacity.
- Is the GTW3684JB a ball bearing or journal bearing turbo?
- The GTW3684JB is a journal bearing turbocharger.
- What turbine housing and exit does the GTW3684JB use?
- It uses a .82 A/R T4 undivided turbine housing with a 3″ GT V-band exit, featuring a 90mm flange OD and 81mm centering.
- What does GTW6262JB refer to?
- GTW6262JB is an alternate name for the Garrett GTW3684JB.
For builders seeking the performance of the legendary 6262 platform combined with Garrett’s GTW Series engineering, the GTW3684JB delivers strong mid-range capability and proven reliability at a competitive price point.
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