Precision-engineered by Garrett, this G30 reverse rotation turbine housing kit is built for enthusiasts and builders who demand exacting flow characteristics and packaging flexibility on high-performance turbo installations. Its V-Band in/out configuration and reverse rotation design make it the ideal choice for engine bays and exhaust routing where standard housing orientation won’t work. This is a purpose-built component for serious G30 turbocharger builds that require precise control over spool and efficiency.
Specifications
- Turbine Housing A/R Ratio: 1.21 A/R O/V
- Rotation: Reverse Rotation
- Inlet/Outlet Configuration: V-Band In/Out
- Turbine Wheel Inducer: 60mm
- Turbine Wheel Exducer: 55mm
- Turbine Wheel Trim: 84
- Garrett P/N: 740902-0099
Performance & Application
This turbine housing kit is designed specifically for the Garrett G30 turbocharger platform, offering builders a reverse rotation option for applications where housing orientation and exhaust routing constraints demand it. The 1.21 A/R O/V ratio combined with the 84-trim, 60mm inducer/55mm exducer turbine wheel geometry is engineered to deliver optimized spool characteristics while maintaining peak efficiency. The V-Band in/out design simplifies installation and enables a cleaner, more serviceable exhaust connection compared to flanged alternatives. This housing is well suited for performance builds seeking a balance of responsive spool-up and strong top-end flow within the G30 platform.
Frequently Asked Questions
- What is the A/R ratio of this G30 turbine housing?
- This turbine housing kit features a 1.21 A/R O/V ratio.
- Does this housing use V-Band or flanged connections?
- This kit uses V-Band connections on both the inlet and outlet.
- What are the turbine wheel dimensions for this housing?
- The turbine wheel features a 60mm inducer and 55mm exducer with 84-trim geometry.
- Is this a standard or reverse rotation turbine housing?
- This is a reverse rotation turbine housing, designed for applications requiring reverse rotation configuration.
For G30-based builds requiring reverse rotation and V-Band simplicity, this Garrett turbine housing kit delivers the precise geometry and flow characteristics needed to hit peak performance targets.

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