The Garrett G30-660 standard rotation turbocharger is built for enthusiasts who demand a high-flowing, race-proven turbo capable of handling serious power while retaining excellent driveability. Engineered with Garrett’s advanced G Series compressor and turbine technology, this configuration is tailored for builders seeking strong response paired with a broad, aggressive powerband. It’s the right choice for street and strip applications where both quick spool and top-end capability matter.
Specifications
- Compressor Wheel Inducer: 54mm
- Compressor Wheel Exducer: 67mm
- Compressor Wheel Trim: 65
- Compressor Housing A/R: 0.70
- Compressor Inlet: 3″
- Compressor Outlet: 2″
- Turbine Wheel Inducer: 60mm
- Turbine Wheel Exducer: 55mm
- Turbine Wheel Trim: 84
- Turbine Housing A/R: 0.82
- Turbine Housing Flange: T3 Undivided (Open)
- Turbine Outlet Flange: T31 (Narrow) 4 Bolt
- Rotation: Standard Rotation
- Garrett P/N: G30-660
Performance & Application
This G30-660 configuration pairs a 0.82 A/R T3 undivided turbine housing with a T31 narrow 4-bolt outlet, delivering a balance of responsive spool and strong high-RPM flow. The 54/67mm compressor wheel and 60/55mm turbine wheel combination is well suited to builders pushing serious power levels while still wanting a turbo that comes on quickly. This setup is ideal for street/strip applications where drivers need both aggressive acceleration off the line and sustained power delivery through the top end.
What’s Included
- Oil Feed (1mm) Restrictor Fitting to -4AN
- Two Coolant Fittings to -6AN
Frequently Asked Questions
- What is the A/R ratio of the Garrett G30-660 standard rotation turbo?
- This configuration uses a 0.82 A/R T3 undivided turbine housing paired with a 0.70 A/R compressor housing.
- What turbine and compressor housing flanges does this turbo use?
- The turbine housing uses a T3 undivided (open) inlet flange with a T31 (narrow) 4-bolt outlet flange.
- What size are the compressor and turbine wheels?
- The compressor wheel features a 54mm inducer and 67mm exducer with a 65 trim, while the turbine wheel features a 60mm inducer and 55mm exducer with an 84 trim.
- Does this turbo include any additional fittings?
- Yes, it includes an Oil Feed (1mm) Restrictor Fitting to -4AN and two Coolant Fittings to -6AN.
For builders seeking a proven Garrett G Series turbo with a well-matched compressor and turbine combination for street/strip performance, the G30-660 standard rotation with 0.82 A/R T3 undivided, T31 narrow 4-bolt housing delivers the exact specification serious enthusiasts require.
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