The Garrett CHRA for the G-Series II G30-825 is engineered for performance enthusiasts and shops looking to unlock more power from an existing G30 platform without replacing the entire turbo housing package. Built on Garrett’s next-generation compressor aero technology, this CHRA delivers a direct, calibrated upgrade path for current G-Series Gen I owners. It’s the ideal choice for builders who want proven G-Series durability paired with meaningful gains in compressor efficiency and flow.
Specifications
- Turbine Wheel Material: Mar-M alloy, rated up to 1050°C
- Turbine Housing Material: Stainless steel, rated up to 1050°C
- Compressor/Turbine Housing Compatibility: Utilizes Gen I compressor and turbine housings
- Rotation Configurations: Standard and reverse rotation available
- Compressor Flow Improvement: Up to 10% higher compressor flow compared to G-Series Gen I at peak pressure ratio and peak turbo RPM
- Calibration Requirement: Calibration required to take advantage of increased flow for a horsepower upgrade
- Inlet V-Band Flange (Turbo Manifold): ATP-FLS-350
- Outlet V-Band Flange (Down-pipe): ATP-FLS-351
- Oil Drain Flange: ATP-FLA-010
- Oil Drain Gasket: GRT-GSK-008
- Oil Drain Fasteners: MIA-FST-034
- Boost Pressure Port Fitting: ATP-FTG-198
- Speed Sensor Kit: ATP-ACS-032
- Garrett P/N: 934116-5002S
Performance & Application
This CHRA is purpose-built for Gen I G-Series owners seeking a direct upgrade path, whether purchased as a complete turbo unit, a supercore, or as a standalone CHRA. Because it retains compatibility with existing Gen I compressor and turbine housings, it allows builders to upgrade internals while reusing proven housing hardware. The result is increased efficiency at high flow rates, giving serious builds more headroom without sacrificing the durability G-Series is known
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