The Garrett GT28RS is a dual ball bearing turbocharger built for enthusiasts who demand rapid throttle response without sacrificing top-end performance. Designed around a .64 A/R T25 internal wastegate turbine housing, this unit is the go-to choice for small displacement builds that need aggressive spool characteristics. Its compact frame and ball bearing core make it a favorite for drivers who want a turbo that comes on hard and stays responsive throughout the rev range.
Specifications
- Bearing Type: Dual Ball Bearing
- Compressor Wheel Inducer: 47 mm
- Compressor Wheel Exducer: 60 mm
- Compressor Wheel Trim: 62
- Turbine Wheel Inducer: 54 mm
- Turbine Wheel Exducer: 47 mm
- Turbine Wheel Trim: 76 trim
- A/R Ratio: .64
- Turbine Housing Flange: T25, 5 bolt
- Wastegate: Internal, 1 bar actuator
- HP Capacity: Approximately 350HP
- Actuator Options: Standard (1 bar), 7 PSI (optional lower pressure actuator)
- Also Known As: GT2860RS
Performance & Application
The GT28RS dual ball bearing turbo is engineered for small displacement engines and delivers the ultimate spool-up time compared to other units in its class. With a flow capacity suited to serious street and track builds, this turbo is built for drivers who prioritize quick boost onset and responsive throttle behavior over sheer top-end flow. It’s an ideal match for enthusiasts running compact displacement platforms who want a turbo that spools fast and holds power delivery consistently. For those needing a different boost target, an optional lower pressure actuator is available to fine-tune wastegate response.
Compatibility & Fitment
- Small displacement engines up to 2.2L
Frequently Asked Questions
- What HP can the GT28RS support?
- The GT28RS has a flow capacity of about 350HP.
- Is the GT28RS a ball bearing or journal bearing turbo?
- The GT28RS is a dual ball bearing turbocharger.
- What is the A/R ratio of the GT28RS?
- The GT28RS uses a .64 A/R T25 internal wastegate turbine housing with a 1 bar actuator.
- What does GT2860RS refer to?
- GT2860RS is an alternate name for the Garrett GT28RS turbocharger.
- What engines is
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