Turbocharger, Garrett **Ball Bearing** , T3/T4E 50 Trim Compressor

Built for enthusiasts who demand instant response without sacrificing top-end power, this Garrett Ball Bearing T3/T4E turbocharger pairs a proven dual ball bearing center section with a 50 trim compressor wheel for a turbo that spools quickly and holds strong through redline. It’s the ideal upgrade for builders moving up from a stock journal bearing turbo who want sharper throttle response and a wider powerband. Backed by Garrett engineering, this unit is a favorite among performance shops and DIY builders alike for its versatility across A/R and housing configurations.

Specifications

• Bearing Type: Dual ball bearing
• Compressor Wheel: T04E 50 trim
• Compressor Inlet: 3″
• Compressor Outlet: 2″
• Turbine Wheel: Stage III
• Turbine Housing Mounting: T31 4 bolt
• Oil Inlet Fitting: ATP-OIL-021
• Drain Flange: T3/4
• Coolant Requirement: Coolant in/out required, 14mm threads (same as GT series ball bearing)
• HP Capacity: 450HP
• Available Turbine A/R Ratios: .48, .63, .82
• Special A/R Option: .72 A/R (only available on Special T25 EWG-44)
• Special A/R Option (Cosworth): .72 A/R (for Cosworth housing)
• Alternate Turbine Housing Option: T3/T4 5 bolt (Ford style) discharge, available in .63 or .82 A/R only
• Alternate Turbine Housing Option: Special Turbine Housing T25-EWG-44
• Alternate Turbine Housing Option: Special Turbine housing – Cosworth style T3 inlet with 3 bolt outlet
• Additional Option: Anti-Surge Option available

Performance & Application

This turbocharger is engineered for builders targeting a strong, responsive power delivery on T3/T4-style setups. The dual ball bearing design minimizes lag compared to journal bearing units, giving quicker spool-up and more predictable boost response under load. With multiple turbine A/R options available, it can be tailored for either quick-spooling street builds or higher-flow setups that need to breathe at higher RPM. The available alternate turbine housing configurations, including Ford-style five bolt discharge and specialty EWG and Cosworth options, make this turbo adaptable to a range of turbine housing and wastegate configurations.

Frequently Asked Questions

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