The Garrett G25-660 is a purpose-built small frame ball bearing turbocharger engineered for enthusiasts who demand big power without sacrificing packaging space. Paired here with a stainless steel V-Band inlet and outlet turbine housing, this configuration is designed for builders chasing serious output from a compact, high-response platform. It’s the choice for those who want proven Garrett G-Series engineering backing their next build.
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 Celsius Rating
- Turbine Housing Inlet: 3 Inch O.D. V-Band
- Turbine Housing Outlet: 3.55 inch O.D. V-Band
- Turbine Housing A/R: .92
- Bearing Type: Ball Bearing
- Rotation: Standard Rotation
- HP Capacity: 660HP
- Garrett P/N: 871389-5011S
- Alternate P/N: 858161-5003S
- Alternate P/N: 740902-0068
Performance & Application
The G25-660 leverages an Ultra High Flow G-Series Compressor Wheel alongside an evolutionary aero G-Series Turbine Wheel to deliver strong response in a small frame footprint. Built from high heat resistance Mar-M Alloy, the turbine wheel is engineered to withstand extreme exhaust temperatures while maintaining durability under sustained boost. This configuration is designed for builders seeking 660HP capability from a compact, small-frame turbocharger package. The .92 A/R V-Band turbine housing configuration suits enthusiasts prioritizing efficient exhaust flow matched to a ball bearing core for quick spool characteristics.
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 Garrett G25-660 support?
- The G25-660 is rated to deliver 660HP from its small frame package.
- Is the G25-660 a ball bearing or journal bearing turbocharger?
- The G25-660 is an advanced small frame ball bearing turbocharger.
- What is the A/R ratio of the turbine housing?
- This turbine housing features a .92 A/R with V-Band inlet and V-Band outlet, stand
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