Garrett G Series G25-660 Turbocharger (2024)

SKU

G25-660

The Garrett G-Series G25-660 is designed for 1.4L - 3.0L engines. As the name suggests, this turbocharger is capable of supporting 660 BHP. Featuring the latest in turbocharger aerodynamics, these turbos provide legendary performance and reliability for your vehicle. Call our Turbo Experts for help deciding which turbocharger is right for you.

THE MOST POWERFUL SMALL FRAME TURBO

G Series turbochargers feature the latest innovations in turbocharger technology. Advanced compressor and turbine aero offer enthusiasts a wide range of performance boosting solutions for 2.0L - 12.0L engine platforms. Available in a variety of turbine housing options, it’s easy to select the right turbocharger for your application. To make choosing the right turbo easier, the G Series naming convention includes the maximum rated horsepower. For example a Garrett G37-900 is rated at 900 BHP

FEATURES

• Ultra High Flow G-Series Turbine Wheel
  
• Advanced aerodynamics G Series Compressor Wheel
  
• Fully machined speed sensor and pressure ports
  
• Oil restrictor and water fittings included with purchase
  
• One piece center housing and backplate for increased durability
  
• Compact Standard Package
  
• Four water jacket ports for customizable installation
  
• Ball Bearing CHRA Rotating Assembly
  
• Standard & Reverse rotation (spins counterclockwise) options available
  
• Mar-M turbine wheel material rated up to 1050° C | 1922° F
  
• Stainless steel turbine housings for temperatures up to 1050° C | 1922° F
  
• +20% More Horsepower & Quicker Spool over comparable competitive turbochargers.

GARRETT G SERIES TURBINE WHEEL

Featuring the latest advanced ultra high flow aerodynamic designs with the Garrett G Series Turbine Wheel, the G Series models offer previously unobtainable improvements in spool and power levels by frame size. The G-Series Turbine wheel is constructed of Mar-M super alloy material. This material is designed to withstand up to 1050° C - that’s 200 degrees more than inconel turbine wheels! The newly engineered turbine wheel with optimized G Series aerodynamics increases flow up to 15% (Compared to GTX Gen II) more than the GTX and has a peak efficency of 74%.

DUAL BALL BEARING CHRA

All G-Series utilize a V-Band turbine housing to CHRA connevtion. This improves the ease of installation, clocking, and servicing the turbocharger. Each turbocharger includes a -4AN oil restrictor fitting with a 1MM restriction orifice to provide the turbo with the reccomended 40PSI of oil pressure. Four large water jacket ports increase cooling capacity and allow enthusiasts to customize water line routing to help improve the installation process. The turbocharger comes with two -6AN fittings and two plugs.

Recommended to install waterlines on opposite sides of housing.

GARRETT G SERIES COMPRESSOR SPECIFICATIONS

• GARRETT G SERIES COMPRESSOR SPECIFICATIONS
  
• Compressor Wheel Exducer: 67mm
  
• Compressor Wheel Inducer: 54mm
  
• Compressor Wheel Trim: 65
  
• Compressor Wheel Material: Forged Billet Aluminum Alloy
  
• Compressor Wheel A/R: 0.70 A/R
  
• Max Flow Rate: 61 lb/min
  
• Max Recommended Turbo Shaft Speed: 165000 RPM
  
• Compressor Housing Connections:Inlet:
  • 3.0″ Hose Coupler
    
  • Outlet: 2.0″ Hose Coupler

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 G25-660 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 Wastegat

CERAMIC COATING

Looking for a way to protect your turbo or exhaust manifold and improve its efficiency at the same time? Our in-house ceramic exhaust coating does both! Available in black or silver, these 2000+ degree ceramic coatings look great and provide an extra layer of protection against corrosion. By coating the exterior surfaces of your turbo hot side or manifold you retain the heat and energy in the exhaust, not in your engine bay. Improving under-hood temps and increasing efficiency with improved turbo spool are great reasons to add these coatings.

Please note that ceramic coating is completed in-house and will add an additional lead time of 1-2 weeks to your order.

GARRETT G25-660 DYNO PULL

Looking to ensure you get the perfect turbo for your unique application the first time? Full-Race is here to help. Our customized turbo matching and system integration services use accurate operating parameter plotting to eliminate guesswork and trial and error. As turbocharging continues to grow globally, our unwavering commitment to high standards ensures unrivaled quality, reliability, and performance. Email us at gofaster@full-race.com or call us at (602) 437-2101 to find out how we can help you achieve your goals.

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