The Garrett G25-660 Reverse Rotation turbocharger is engineered for serious performance builds that demand big power from a compact footprint. Paired with a stainless steel V-band turbine housing, this small-frame ball bearing unit is built for enthusiasts and tuners who need reverse rotation configuration without sacrificing top-end capability. This is a purpose-built solution for platforms requiring reverse spool direction and high-flow performance in a space-constrained package.
Specifications
- Compressor Wheel Inducer: 54mm
- Compressor Wheel Exducer: 67mm
- Compressor Wheel Trim: 65
- Compressor Housing Inlet: 3 Inch Diameter
- Compressor Housing Outlet: 2 Inch Diameter
- Compressor Housing A/R: .70
- Turbine Wheel Inducer: 54mm
- Turbine Wheel Exducer: 49mm
- Turbine Wheel Trim: 84
- Turbine Wheel Material: Mar-M Alloy, 1050°C Rating
- Turbine Housing A/R: .92
- Turbine Housing Inlet: 3 Inch O.D. V-Band
- Turbine Housing Outlet: 3.55 Inch O.D. V-Band
- Bearing Type: Ball Bearing
- Rotation: Reverse Rotation
- Frame Size: Small Frame
- HP Capacity: 660HP
- Garrett P/N: 871390-5011S
- Alternate P/N: 871399-5002S
- Alternate P/N: 740902-0074
Performance & Application
The G25-660 delivers 660HP from a small-frame package, making it an ideal choice for builds where compressor and turbine wheel design must maximize output without oversized housing dimensions. The Ultra High Flow G-Series Compressor Wheel works alongside an evolutionary aero G-Series Turbine Wheel to deliver strong performance characteristics across the power band. Constructed from high heat resistance Mar-M Alloy with a 1050 Celsius rating, the turbine wheel is built to withstand demanding thermal conditions in high-performance applications. This reverse rotation configuration is purpose-built for installations requiring that specific rotational orientation.
What’s Included
- Oil Feed (1mm) Restrictor Fitting to -4AN
- Two Coolant Fittings to -6AN
- Turbine Housing Inlet & Outlet V-Band Clamps
Frequently Asked Questions
- What HP can the G25-660 support?
- The Garrett G25-660 is rated to deliver 660HP from its small-frame package.
- Is this a ball bearing or journal bearing turbo?
- The G25-660 is a ball bearing turbocharger.
- What is the turbine housing A/R ratio?
- This turbocharger comes equipped with a .92 A/R stainless steel V-band turbine housing.
- What material is the turbine wheel made from?
- The turbine wheel
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