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GARRETT G47-1550 76MM

Horsepower: 825 - 1550

Displacement: 2.5L - 10.0L

Important product information:
Garrett Performance Kits are professional aftermarket products only designed for certain racing vehicles driven on particular racing tracks and shall only be used on racing vehicles that will never be driven on public roads or highways. Garrett Performance Kits are not legal for the use in vehicles on public roads or other roads to which public road law applies. Any vehicle modifications using Garrett Performance Kits are AT YOUR OWN RESPONSIBILITY and AT YOUR OWN RISK. Only use Garrett Performance Kits in compliance with all applicable laws, regulations, and ordinances (including but not limited to emission, noise, operating license, performance, safety, and type-approval aspects). A vehicle modification using Garrett Performance Kits may particularly affect or void a vehicle’s warranty, operating license or type-approval. Moreover, only use Garrett Performance Kits in compliance with all applicable racing and racing track provisions. It is YOUR OWN RESPONSIBILITY AND RISK to ensure that your Garrett Performance Kit fits your vehicle and area of application. YOU MUST ENSURE LAWFUL AND SAFE OPERATIONS AT ANY TIME. You should particularly consult the owner’s manual and service manual of your vehicle. You should also contact your vehicle’s manufacturer to determine what effects modifications may have on important aspects such as safety, warranty, performance, etc. Only install and use Garrett Performance Kits if you have fully read and understood this important safety information and if you fully agree with the terms and conditions set forth therein.


• Outline interchangeable with GTX Gen II turbos
• Supports up to 1550 flywheel horsepower
• 76mm | comp ind | 109mm comp exd
• High flow, high efficiency GTX Gen II comp aero
• G-Series turbine wheel aero increases performance compared to GTX47 Gen II
• Flow: up to 20% more
• Spool: up to +9% (estimated by flow, efficiency, and inertia)
• One-piece lightweight aluminum center hsg/backplate
• Outlet length on T6 turbine hsg reduced 17mm compared to GTX to optimize weight reduction

G47-1550 Part Number: 880547-5023S

WARNING: Maximum allowable turbocharger speed is 102.5krpm. The use of this product above max turbocharger speed is at the owner’s risk, and can result in damage and premature failure. To protect the turbocharger from overspeed when operating, a speed sensor can be installed into the compressor housing to monitor shaft speed. Sensors sold separately. (click here for details)

Performance results of this product are highly dependent upon your vehicle’s modifications and tuning/calibration. The horsepower numbers represented above are calculated based strictly on choke flow of the compressor map (total turbo capability), which represents the potential flywheel horsepower.

Learn More About Race Vehicle Setups

G-Series G47-1550 76mm

Reference Data

G47-1550 Compressor Turbine
Inducer Exducer Trim A/R Inducer Exducer Trim
HP: 825-1550              Disp: 2.5L-10.0L 76mm 109mm 49 0.88 93mm 88mm 90
Supercore PN
Standard Rotation 880547-5023S
Turbine Kits: G47 PN A/R Inlet Outlet Wastegate Divided
Interchangeable with G-Series G47 supercores 761208-0075 0.96 T6 V-Band Free Float N
761208-0076 1.08 T6 V-Band Free Float N
761208-0077 1.23 T6 V-Band Free Float N
761208-0078 1.39 T6 V-band Free Float N

G-Series G47-1550 76mm

Download Section

File Name Link View
Configuration Guide Download View



File Name Link View
Compressor Map Download View
Exhaust Flow Chart Download View
Product Photo Download View
Flange Diagram Download View
Speed Sensor Kit Installation Instruction Download View

G-Series G47-1550 76mm

Compressor Map & Exhaust Flow Chart

Compressor Map

Exhaust Flow Chart

G-Series G47 Configurations

G Series G47 is available in 4 total configurations. 76mm 109mm | 80mm 109mm | 80mm 120mm | 88mm 120mm compressor measurements. You can click the hyperlinks to go directly to those product pages. All G-Series G47 models are interchangeable meaning the supercore can be swapped into any turbine housing out without having to reconfigure any other turbo kit parts.


G47 Turbine Housing Kits

G-Series G47 turbine housing kits are available in four A/R. 0.96 A/R | 1.08 A/R | 1.23 A/R | 1.39 A/R stainless steel housings with T6 inlet flange. The 1.39 A/R T6 turbine housing flows 64 LBS/MIN of air which is a 20% increase over the GTX47 turbine wheel.