
Garrett GT3076R Turbocharger
PRODUCT DETAILS
The GT3076R is a Garrett GT Series ball bearing turbo with original GT aerodynamics and a water-cooled center housing. It is sold as a supercore with your choice of an internally wastegated or a non-wastegated (free float) turbine housing.
Garrett rates the GT3076R for 310 to 525 horsepower on 2.0 to 3.5 liter engines.
Key Specifications
- Series — GT Series
- Frame size — 30 frame
- Horsepower rating — 310–525 hp (Garrett rating)
- Engine displacement — 2.0–3.5 L
- Compressor wheel — 57 mm inducer, 76 mm exducer, 56 trim, 0.60 A/R housing
- Turbine wheel — 60 mm inducer, 55 mm exducer, 84 trim
- Bearing — Ball bearing
- Center housing — Oil and water cooled
- Supercore part number — 836028-5003S
Turbine Housing Options
Each turbine housing is listed by A/R (area-to-radius ratio), inlet flange, outlet and wastegate type. "Internal" housings have a built-in wastegate; "External" housings are free-float designs that require an external wastegate.
| Garrett part number | A/R | Inlet | Outlet | Wastegate | Divided | Notes |
|---|---|---|---|---|---|---|
| 740902-0009 | 0.63 | T3 | V-Band | External | No | — |
| 740902-0008 | 0.82 | T3 | V-Band | External | No | — |
| 740902-0007 | 1.06 | T3 | V-Band | External | No | — |
| 771300-0006 | 0.63 | T3 | 5-bolt | Internal | No | Wastegated turbine assembly does not include bolts, clamps, or actuator |
| 771300-0005 | 0.82 | T3 | 5-bolt | Internal | No | Wastegated turbine assembly does not include bolts, clamps, or actuator |
| 771300-0004 | 1.06 | T3 | 5-bolt | Internal | No | Wastegated turbine assembly does not include bolts, clamps, or actuator |
| 740902-0036 | 0.61 | V-Band | V-Band | External | No | — |
| 740902-0035 | 0.83 | V-Band | V-Band | External | No | — |
| 740902-0034 | 1.01 | V-Band | V-Band | External | No | — |
Garrett: Interchangeable with GT, GTX Gen I, and GTX Gen II 30 Series Supercores.
Important Information
Garrett calculates its horsepower ratings from the compressor map choke flow, which represents the potential flywheel horsepower of the turbo. Actual results depend on the engine, supporting modifications and calibration.
For race vehicles only. Not for use on public roads.
Installation and Tuning Available at Race Protocol
Turbo system design, installation and dyno tuning are available in house. Call (724) 732-8948 to discuss your build.
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