The Garrett G25 CHRA G25-550-FR represents the core of one of the most versatile center housings in the G Series lineup, built for enthusiasts who demand quick spool without sacrificing top-end capability. This regular rotation configuration is engineered for builders who want a proven ball-bearing platform at the heart of a mid-range performance turbocharger. It’s the right choice for anyone building a G25-550 turbo from the ground up or replacing a core in an existing setup.
Specifications
- Compressor Wheel: 62mm
- Turbine Wheel: 60mm
- Turbine Housing A/R: 0.61
- Bearing Type: Ball bearing
- HP Capacity: Up to 550 HP
- Rotation: Regular rotation (FR)
- Frame Size: G25-550
- Garrett P/N: 860701-5001S
Performance & Application
This G25-550-FR CHRA is designed to deliver responsive mid-range boost thanks to its ball-bearing center housing and matched 62mm compressor and 60mm turbine wheel combination. The 0.61 A/R turbine housing configuration supports excellent spool characteristics while enabling the turbo to support up to 550 HP. Builders looking for a strong balance of quick response and sustained power delivery will find this CHRA well suited to their application. The regular rotation configuration makes it a direct fit for setups specifically calling for this rotational orientation.
Frequently Asked Questions
- What HP can the G25-550-FR CHRA support?
- This CHRA supports up to 550 HP.
- Is this a ball bearing or journal bearing center housing?
- The G25-550-FR features a ball-bearing center housing.
- What is the A/R ratio of the turbine housing paired with this CHRA?
- It is designed around a 0.61 A/R turbine housing.
- What wheel sizes does the G25-550-FR use?
- It features a 62mm compressor wheel and a 60mm turbine wheel for responsive mid-range boost and excellent spool characteristics.
For builders seeking a ball-bearing G25 core with proven mid-range response and a 550 HP ceiling, the G25-550-FR CHRA delivers the exact specification needed to build or rebuild with confidence.

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