The Garrett G-Series G40-900 is a ball-bearing turbocharger engineered for enthusiasts and builders demanding serious power density without sacrificing responsiveness. Its 62mm compressor wheel and V-band in/out turbine housing configuration make it a versatile choice for high-performance applications requiring flexible installation and strong top-end capability. This unit is built for those pushing power levels that demand a proven, race-ready core.
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: 0.95
- Turbine Housing Configuration: V-Band In/Out
- Bearing Type: Ball Bearing
- HP Capacity: 900hp
Performance & Application
Designed for high-output performance builds, the G40-900 delivers the response and durability expected from Garrett’s G-Series lineup, backed by ball-bearing construction for quick spool and confident high-RPM operation. The V-band in/out turbine housing simplifies installation across a range of custom and performance engine setups, giving builders flexibility when designing exhaust and turbo-back systems. This turbo is suited for enthusiasts targeting big horsepower numbers while maintaining a broad, usable powerband.
Frequently Asked Questions
- What HP can the G40-900 support?
- The Garrett G40-900 is rated for up to 900hp capacity.
- Is this a ball bearing or journal bearing turbocharger?
- The G40-900 is a ball-bearing turbocharger.
- What is the A/R ratio of the turbine housing?
- The turbine housing features a 0.95 A/R ratio.
- What type of turbine housing configuration does this unit use?
- It uses a V-band in/out turbine housing configuration for flexible engine applications and straightforward installation.
For builders chasing serious horsepower with the reliability and performance heritage of Garrett’s G-Series engineering, the G40-900 stands as a proven, high-capacity solution.

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