Description
GARRETT® G25-660
Horsepower: 350 – 660
Displacement: 1.4L – 3.0L
Features
- G SERIES COMPRESSOR AERODYNAMICS FOR MAXIMUM HP
- G SERIES TURBINE WHEEL AERO WITH IMPROVED EFFICIENCY
- STANDARD AND REVERSE ROTATION CONFIGURATIONS
- TURBINE WHEEL CONSTRUCTED OF MAR-M ALLOY RATED UP TO 1050°C
- STAINLESS STEEL TURBINE HOUSING OPTIONS RATED UP TO 1050°C
- FULLY MACHINED SPEED SENSOR AND PRESSURE PORTS
- OIL RESTRICTOR AND WATER FITTINGS INCLUDE
G-SERIES G25-660
Reference Data
The latest Garrett technologies featuring many advanced features.
G25-660 | Compressor | Turbine | |||||
---|---|---|---|---|---|---|---|
Inducer | Exducer | Trim | A/R | Inducer | Exducer | Trim | |
54mm | 67mm | 65 | 0.70 | 54mm | 49mm | 84 | |
Standard Rotation | Assembly Kit PN | A/R | Inlet | Outlet | Wastegate | Divided | |
Assembly Kit Includes Super Core and Turbine Kit | 871389-5010S | 0.72 | V-Band | V-Band | Free Float | N | |
871389-5011S | 0.92 | V-Band | V-Band | Free Float | N | ||
Standard Rotation | Turbo PN | A/R | Inlet | Outlet | Wastegate | Divided | |
Turbo PN assembled and calibrated by Garrett® with 1.0 bar actuator (14.7PSI). | 877895-5002S | 0.49 | T25 | V-Band | Yes | N | |
877895-5005S | 0.72 | V-Band | V-Band | Yes | N | ||
877895-5006S | 0.92 | V-Band | V-Band | Yes | N | ||
G-SERIES G25-660
Compressor Map & Exhaust Flow Chart
The latest Garrett technologies featuring many advanced features.
COMPRESSOR MAP
EXHAUST FLOW CHART
The most powerful small frame turbocharger on the market
Introducing performance out of a package you never thought possible. This clean sheet product is tailored to meet the demands of hard core racing enthusiasts while providing industry leading power capability in a small package.
The G-Series G25-550 and the G25-660 turbochargers are compatible with 1.4L – 3.0L engine displacements and capable of producing up to 550 and 660 horsepower. G Series 25 turbochargers are smaller and outflow all comparable products on the market.
New compressor and turbine aero combined with high temperature resistant materials allowed engineers to push the limits of performance.
A new name designates a new generation of industry leading technology and innovation.
Understanding the Name:
G25-550 || G25-660
G designates 81 years of Garrett® heritage.
25 classifies the size of the frame. The remaining 3 digits identify the max horsepower rating of the turbocharger. (ie 550)

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