Garrett Motion G25-550 Reverse Rotation G-Series 2560R Turbocharger

GARRETT G SERIES G25-550 REVERSE ROTATION TURBO PACKS A BIG PUNCH FOR ITS SIZE

Garrett’s G25-550 is the smallest Reverse Rotation turbo in the potent G-Series lineup, but it delivers more power than competitors. A clean-slate ball bearing turbo with state-of-the-art aerodynamics, this turbo is more compact yet outflows all comparable products on the market.

The new compressor and turbine aero combined with exotic high-temperature alloys allowed engineers to outdo the Gen2 GTX and competitor turbos. Carrying nothing over from the old gen – the G-series 60mm exducer billet compressor wheel redefines what we thought was possible for a given airflow range. This turbo manages to flow +10 lbs/min (+22% gain) compared to the outgoing GTX2860R Gen II turbo it supersedes.

The reverse rotation G25-550 is an exact mirror of the standard rotation G25. Designed to improve fitment in single and twin-turbo installs, the max turbo speed is 185krpm and the max temp is 1050C/1922F. G25 Compressor housings use a traditional 3″ inlet and 2″ hose outlet with a fully machined speed sensor port. The Improved ported shroud inlet design offers maximum surge resistance with huge flow rates in a compact outline. This turbo is available in standard rotation and reverse rotation options for enthusiasts that want the perfect twin turbo installation or a single reverse rotation turbo for applications with installation restrictions. It is sold as a complete assembly with supercore and turbine housing.

COMPRESSOR SPECIFICATIONS

• Compressor Wheel Exducer: 60mm
• Compressor Wheel Inducer: 48mm
• Compressor Wheel Trim: 65
• Compressor Wheel Material: Forged Billet Aluminum Alloy
• Compressor Wheel A/R: 0.70 A/R
• Max Flow Rate: 50 lb/min
• Max Recommended Turbo Shaft Speed: 185000 RPM
• Compressor Housing Connections:
  • Inlet: 3.0″ Hose Coupler
  • Outlet: 2.0″ Hose Coupler

G25-550 60MM COMPRESSOR MAP

TURBINE SPECIFICATIONS

• Turbine Wheel Exducer: 49mm
• Turbine Wheel Inducer: 54mm
• Turbine Wheel Trim: 84
• Turbine Wheel Material: Mar-M
• Turbine Wheel Max Temp: 1050C / 1922F
• Housing Size and A/R ratio: G-Series G25-550 is available in five (5) different turbine housing configurations:
  • 0.49 A/R T25 Single Scroll Inlet, V-Band Outlet w/ Internal Wastegate
  • 0.72 A/R V-Band Single Scroll Inlet, V-Band Outlet
  • 0.92 A/R V-Band Single Scroll Inlet, V-Band Outlet
  • 0.72 A/R V-Band Single Scroll Inlet, V-Band Outlet w/ Internal Wastegate
  • 0.92 A/R V-Band Single Scroll Inlet, V-Band Outlet w/ Internal Wastegate

TURBINE FLOW MAP

G25-550 DYNO RESULTS

When installed by Tunnel Vision Turbocharging in Melbourne, Australia, on a Nissan SR20DET, the Garrett G25-550 turbo turned out the following numbers on the dyno.

UNDERSTANDING THE NAME

A new name designates a new generation of industry-leading technology and innovation. In G25-550, the “G” designates 81 years of Garrett® Turbo heritage, the “25″ classifies the frame size, and the remaining 3 digits identify the “max horsepower” rating at the flywheel of the turbocharger (550).

G-SERIES BILLET COMPRESSOR WHEEL

Available in standard rotation and reverse rotation options for enthusiasts that want the perfect twin turbo installation or a single reverse rotation turbo for applications with installation restrictions.  The CFD (computational fluid dynamics) engineered compressor wheel increases airflow up to 15% for 60mm with 79-80% efficiency when compared to GTX Gen II.

Brand

Garrett Motion

Garrett technologies and innovations have been used by nearly every major global automaker, resulting in approximately 100 million vehicles with our products and an average launch rate of 100 new applications annually spanning gas, diesel, natural gas, electric and fuel cell powertrains.