The Garrett G40-900 represents the pinnacle of G-Series compressor technology, engineered for enthusiasts building high-horsepower platforms that demand both quick spool and massive top-end airflow. This unit pairs a 62mm compressor wheel with a V-band in/out turbine housing, making it the ideal centerpiece for serious performance builds that refuse to compromise on responsiveness or peak output. Choose the G40-900 when your build requires a turbocharger capable of handling aggressive boost levels without sacrificing daily drivability.
Specifications
- Compressor Wheel Inducer: 62mm
- Compressor Wheel Exducer: 88mm
- Compressor Wheel Trim: 51
- Compressor Housing A/R: 0.80
- Turbine Wheel Inducer: 77mm
- Turbine Wheel Exducer: 70mm
- Turbine Wheel Trim: 84
- Turbine Housing A/R: 1.06
- Turbine Housing Flange: V-Band In/Out
- Bearing Type: Ball Bearing
- HP Capacity: 900hp
Performance & Application
The G40-900 is built for performance engines targeting aggressive boost applications, delivering the kind of top-end horsepower capacity that serious builds demand. Its ball bearing center section ensures the turbo can handle sustained high-boost operation while maintaining durability under extreme conditions. The V-band in/out turbine housing configuration is designed for builds prioritizing efficient exhaust flow and simplified installation into custom turbo systems. This unit suits enthusiasts and shops constructing high-output setups where both spool characteristics and sustained power delivery are critical to the final result.
Frequently Asked Questions
- What HP can the G40-900 support?
- The Garrett G40-900 delivers 900hp capacity, making it suitable for aggressive boost applications across performance engines.
- Is this a ball bearing or journal bearing turbocharger?
- The G40-900 features a ball bearing center section, which supports aggressive boost applications.
- What is the compressor housing A/R ratio?
- The compressor housing A/R ratio is 0.80.
- What is the turbine housing A/R ratio and flange type?
- The turbine housing features a 1.06 A/R ratio with V-band in/out connections.
For builds demanding true 900hp capacity backed by ball bearing reliability, the Garrett G40-900 with its 62mm compressor wheel and V-band turbine housing delivers the performance foundation serious enthusiasts require.

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