The Garrett GTW3684JB brings ball-bearing-caliber performance architecture to a journal bearing platform, delivering serious power potential for enthusiasts building a high-output street or race application. Engineered as Garrett’s performance answer to the popular 6262-size turbo, it’s built for those who want proven flow characteristics without stepping up to ball bearing pricing. This unit is ideal for tuners seeking a durable, high-flowing turbo that balances strong top-end power with 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
- Turbine Housing A/R: 1.15
- Turbine Housing Configuration: T4 Divided
- Turbine Housing Outlet: 3″ V-band
- Bearing Type: Journal Bearing
- Compressor Housing Frame: T04S
- Compressor Inlet: 4″
- Compressor Outlet: 2.5″
- Anti-Surge: Built-in & machined
- HP Potential: 750 HP
- Garrett P/N: GTW3684JB
- Also Known As: GTW6262JB
Performance & Application
The GTW3684JB is part of Garrett’s GTW Series, purpose-built as a performance alternative to the widely-used 6262-size turbocharger. Its 1.15 A/R T4 divided turbine housing is designed to maintain strong exhaust pulse separation, supporting quick response while still allowing the unit to flow enough for serious top-end output. With a 750 HP potential rating, this turbo suits builds targeting big power without moving into ball bearing territory. The T04S compressor housing with built-in and machined anti-surge helps extend the usable compressor map for a broader powerband.
Frequently Asked Questions
- What HP can the GTW3684JB support?
- The GTW3684JB has a 750 HP potential flow rating.
- Is this a ball bearing or journal bearing turbo?
- The GTW3684JB is a journal bearing turbocharger.
- What is the A/R ratio and turbine housing configuration?
- It uses a 1.15 A/R T4 divided turbine housing with a 3″ v-band outlet.
- What does GTW6262JB refer to?
- GTW6262JB is an alternate name for the Garrett GTW3684JB.
For enthusiasts chasing a high-flowing, cost-effective alternative to the 6262-size turbo, the Garrett GTW3684JB delivers the performance foundation to get there.
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