The Garrett G-Series G40-900 with the 62mm compressor wheel paired to a T4 divided 1.06 A/R turbine housing is built for enthusiasts chasing serious high-boost performance without sacrificing response. This configuration suits builders who want a turbo capable of handling aggressive power targets while retaining a quick-spooling character on the street or at the track. It’s the right choice for anyone building a high-output platform that demands both strong mid-range torque and a confident top-end pull.
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: T4 Divided, 1.06 A/R
- Bearing Type: Ball Bearing
Performance & Application
This G40-900 configuration is engineered for high-boost applications where both responsiveness and top-end power delivery matter. The ball-bearing design delivers responsive spooling, making it well suited for street and track applications alike. Its Trim 51/84 wheel configuration is tuned to optimize mid-range torque while still building toward strong peak power, giving builders a turbo that doesn’t sacrifice drivability for output.
Frequently Asked Questions
- Is the G40-900 a ball bearing or journal bearing turbo?
- This G40-900 configuration uses a ball-bearing design, which delivers responsive spooling for street and track applications.
- What is the A/R ratio of the turbine housing?
- The turbine housing is a T4 divided design with a 1.06 A/R ratio.
- What is the compressor housing A/R ratio?
- The compressor housing A/R ratio on this unit is 0.80.
- What wheel trim configuration does this turbo use?
- This turbo uses a Trim 51 compressor wheel and a Trim 84 turbine wheel, a configuration that optimizes mid-range torque and peak power delivery.
For builders demanding a high-boost, ball-bearing turbo that balances responsive spool with strong top-end power, the G40-900 with the 62mm compressor wheel and T4 divided 1.06 A/R turbine housing delivers exactly that.
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