The Garrett G-Series G40-900 Turbocharger Unit is engineered for enthusiasts building serious 400+ horsepower applications who demand rapid spool without sacrificing top-end performance. Pairing a 62mm compressor wheel with a divided T4 turbine housing, this unit is built for drivers who need a turbocharger that delivers aggressive boost and consistent power delivery across the RPM range. It’s the choice for builders who refuse to compromise between responsiveness and capacity.
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, 0.85 A/R
- Bearing Type: Ball Bearing
Performance & Application
This G40-900 unit is designed for 400+ horsepower applications where quick spool and sustained power across the RPM band are essential. The ball bearing design enables fast spool-up, while the divided T4 turbine housing helps maintain exhaust pulse separation for improved turbine efficiency. Builders seeking aggressive boost response paired with dependable top-end performance will find this configuration well suited to high-output performance builds.
Frequently Asked Questions
- What HP can the G40-900 support?
- This unit is built for 400+ hp applications.
- Is this a ball bearing or journal bearing turbocharger?
- The G40-900 uses a ball bearing design, which enables fast spool and consistent performance across the RPM band.
- What turbine housing configuration does this unit use?
- It comes with a divided T4 turbine housing with a 0.85 A/R ratio.
- What is the compressor housing A/R ratio?
- The compressor housing has a 0.80 A/R ratio.
For enthusiasts building a high-output platform that demands both quick response and sustained power, the Garrett G40-900 delivers a proven combination of compressor and turbine engineering that’s ready for serious performance duty.
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