The Garrett G-SERIES G40-1150 CHRA is a purpose-built ball-bearing core assembly engineered for enthusiasts and builders demanding serious top-end power without sacrificing spool characteristics. This CHRA is the foundation for high-output builds on high-displacement engines where responsiveness and big-power capability both matter. It’s the right choice for anyone building toward a true four-digit horsepower target while keeping turbo lag in check.
Specifications
- Bearing Type: Ball Bearing
- Compressor Wheel Size: 76mm
- Turbine Wheel Size: 82mm
- Turbine Housing A/R: 0.73
- HP Capacity: Up to 1150 HP
- Frame Size: G40-1150
- Garrett P/N: 860779-5010S
Performance & Application
Built around Garrett’s G-Series platform, this CHRA is engineered for high-displacement applications that need serious horsepower headroom. The ball-bearing core delivers responsive spool-up compared to journal-bearing designs, while the turbine housing’s A/R ratio is tuned to balance quick response against the airflow needed to reach the CHRA’s full power potential. This is a core assembly suited for builders planning a complete turbo system around a high-output target, not a bolt-on solution for stock or mild builds.
Frequently Asked Questions
- What HP can the G40-1150 CHRA support?
- This CHRA is rated to support up to 1150 HP.
- Is this a ball bearing or journal bearing CHRA?
- The G40-1150 CHRA uses a ball-bearing design.
- What is the A/R ratio of the turbine housing?
- The turbine housing is a 0.73 A/R, designed for responsive spool-up on high-displacement applications.
- What size are the compressor and turbine wheels?
- This CHRA features a 76mm compressor wheel and an 82mm turbine wheel.
For builders targeting serious four-digit horsepower without giving up responsiveness, the Garrett G40-1150 CHRA delivers the core capability to get there.

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