Garrett G30 Turbine Housing Kits
From $830.28
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Garrett
Garrett G-Series G30-770 58mm Turbocharger
$2,729.01
COMPRESSOR MAP EXHAUST FLOW CHART FLANGE DIAGRAM
ROTATION
TURBINE HOUSING
PRODUCT DETAILS
The G-Series G30-770 58mm is a first-generation Garrett G-Series turbo. It combines G-Series compressor aerodynamics with a Mar-M alloy turbine wheel rated to 1,050 °C (1,922 °F), and its stainless steel turbine housings carry the same temperature rating. Fully machined speed sensor and pressure ports are built into the compressor housing, and Garrett includes the oil restrictor and water fittings.
Garrett rates the G-Series G30-770 58mm for 475 to 770 horsepower on 2.0 to 3.5 liter engines.
Key Specifications
- Series — G-Series
- Frame size — 30 frame
- Horsepower rating — 475–770 hp (Garrett rating)
- Engine displacement — 2.0–3.5 L
- Compressor wheel — 58 mm inducer, 71 mm exducer, 65 trim, 0.72 A/R housing
- Turbine wheel — 60 mm inducer, 55 mm exducer, 84 trim
- Base boost, complete turbo — 7.3 psi (0.5 bar actuator)
- Bearing — Ball bearing
- Center housing — Oil and water cooled
- Maximum turbo speed — 150,000 rpm
- Supercore part number (standard rotation) — 880693-5002S
- Supercore part number (reverse rotation) — 880694-5002S
- Complete turbo part number (standard rotation, 0.83 A/R) — 880704-5005S
- Complete turbo part number (standard rotation, 1.01 A/R) — 880704-5006S
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 | Rotation | A/R | Inlet | Outlet | Wastegate | Divided |
|---|---|---|---|---|---|---|
| 740902-0092 | Standard | 1.06 | T4 | V-Band | External | Yes |
| 740902-0090 | Standard | 0.83 | T3 | V-Band | External | No |
| 740902-0091 | Standard | 1.01 | T3 | V-Band | External | No |
| 740902-0086 | Standard | 0.61 | V-Band | V-Band | External | No |
| 740902-0087 | Standard | 0.83 | V-Band | V-Band | External | No |
| 740902-0088 | Standard | 1.01 | V-Band | V-Band | External | No |
| 740902-0089 | Standard | 1.21 | V-Band | V-Band | External | No |
| 740902-0094 | Standard | 0.83 | V-Band | V-Band | Internal | No |
| 740902-0095 | Standard | 1.01 | V-Band | V-Band | Internal | No |
| 740902-0100 | Reverse | 0.83 | T3 | V-Band | External | No |
| 740902-0101 | Reverse | 1.01 | T3 | V-Band | External | No |
| 740902-0096 | Reverse | 0.61 | V-Band | V-Band | External | No |
| 740902-0097 | Reverse | 0.83 | V-Band | V-Band | External | No |
| 740902-0098 | Reverse | 1.01 | V-Band | V-Band | External | No |
| 740902-0099 | Reverse | 1.21 | V-Band | V-Band | External | No |
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.
Garrett sets the maximum allowable speed for this turbo at 150,000 rpm. Operating above that speed can damage the turbo and cause premature failure. A turbo speed sensor (sold separately) lets you monitor shaft speed.
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.
