Garrett GTX3071R Gen II Turbo

Boost Power With the Garrett GTX3071R Gen II Turbo

Garrett's Gen II GTX3071R dual ball bearing turbo has the company's ultra high flow compressor wheel featuring Garrett 8-Blade technology.  Compressor housing is GTX30 style with 4″ inlet and 2″ outlet but has built-in anti-surge machining. Improved ported shroud design for surge resistance. This turbo is sold as a complete assembly with supercore and turbine housing. There's a new fully-machined speed sensor port included on all Gen II GTX turbos—a speed sensor is highly recommended.

While the GTX3071R is a fantastic turbo for multiple applications, the G25-660 is an option that somewhat supersedes it and is the most powerful small-frame turbo on the market. That said, the GTX3071R Gen II Turbo has proven itself to be a truly good turbocharger, boosting power considerably and reliably. 

Compressor Specifications

• Compressor Wheel Exducer: 71mm
• Compressor Wheel Inducer: 54mm
• Compressor Wheel Trim: 58
• Compressor Wheel A/R: 0.60 A/R
• Max Flow Rate: 60 lb/min
• Max Recommended Turbo Shaft Speed: 140000 RPM
• Compressor Housing Connections:
  • Inlet: 4.0″ Hose Coupler
  • Outlet: 2.0″ Hose Coupler

Turbine Specifications

• Turbine Wheel Exducer: 55mm
• Turbine Wheel Inducer: 60mm
• Turbine Wheel Trim: 84
• Housing Size and A/R ratio: GTX3071R Gen II is available in nine (9) different turbine housing configurations:
  • 0.63 A/R T3 Single Scroll Inlet, V-Band Outlet
  • 0.82 A/R T3 Single Scroll Inlet, V-Band Outlet
  • 1.06 A/R T3 Single Scroll Inlet, V-Band Outlet
  • 0.61 A/R V-Band Single Scroll Inlet, V-Band Outlet
  • 0.83 A/R V-Band Single Scroll Inlet, V-Band Outlet
  • 1.01 A/R V-Band Single Scroll Inlet, V-Band Outlet
  • 0.63 A/R T3 Single Scroll Inlet, 5-Bolt w/ Internal Wastegate
  • 0.82 A/R T3 Single Scroll Inlet, 5-Bolt w/ Internal Wastegate
  • 1.06 A/R T3 Single Scroll Inlet, 5-Bolt w/ Internal Wastegate

Compressor Map

Turbine Flow Chart

Garrett GTX3071R Gen II Turbo Diagram