Garrett G-XRace GXR42-71 71mm Turbocharger
Horsepower: 500 - 1300
Displacement: 1.4L - 7.0L
Features
G-XRACE UNIVERSAL PERFORMANCE TURBOCHARGER
GXR42-71 | 71mm Turbine
- XBoost technology increases power and performance. This turbocharger is raged up to 1300 brake horsepower
- Increased efficiency at high flow rates provides cooler, denser air to boost power capability
- Lightweight aluminum backplate to reduce turbo weight
- Flange-style speed sensor port for easy installation and turbo speed monitoring for optimal performance and turbo life
- GXR42-71 952766-5006S is for use in the DTA Light drag race class with the 71mm compressor inducer rule
- Water fittings included
- Patented design*
Competitor Frame Size Reference: 7175 (71mm compressor inducer / 75mm turbine exducer)
Read About Turbo System Optimization: A guide to setting up your turbocharger
WARNING: Maximum allowable turbocharger speed is 120krpm. 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.
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.”
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Garrett G-XRace G42-71 71mm Turbocharger
Reference Data
| Supercore PN | Model | Turbo Reference | Horsepower Rating | Comp Inducer | Comp Exducer | Turbine Inducer | Turbine Exducer |
|---|---|---|---|---|---|---|---|
| 952766-5006S | GXR42-71 | 7175 | 1300 | 71mm | 94mm | 82mm | 75mm |
| Turbine Kit PN | A/R | Inlet | Outlet | Wastegate | Divided | ||
|---|---|---|---|---|---|---|---|
| 757707-0011 | 1.01 | V-Band | V-Band | External | N | ||
| 757707-0012 | 1.15 | V-Band | V-Band | External | N | ||
| 757707-0013 | 1.28 | V-Band | V-Band | External | N | ||
| 757707-0014 | 1.01 | T4 | V-Band | External | Y | ||
| 757707-0015 | 1.15 | T4 | V-Band | External | Y | ||
| 757707-0016 | 1.28 | T4 | V-Band | External | Y | ||
Garrett G-XRace G42-71 71mm Turbocharger
Compressor Map & Exhaust Flow Chart
Compressor Map
Exhaust Flow Chart
Real-World Dyno Validation
The GXR42-71 was evaluated by Metal Horse Brasil in a DTA-Light specification application using a VW 2.0 8V water-cooled engine at an altitude of 792 meters | 2600 ft above sea level. The tested Garrett turbocharger was configured with a V-Band turbine housing in A/R 1.28.
In back-to-back testing, the Garrett GXR42-71 produced
907 WHP | 676 kW at 8367 RPM and
580 lb-ft | 80 kg-m of torque at 8027 RPM at
55 PSI 3.8 bar of boost pressure. (2 PSI | .1 Bar lower boost pressure)
Under the same test conditions, the comparison turbo (Precision Next Gen R 7175) produced
903 WHP | 673 kW at 8191 RPM and
585 lb-ft | 81 kg-m of torque at 7896 RPM at
57 PSI | 3.9 bar of boost pressure.
These results demonstrate that the GXR42-71 was capable of delivering slightly higher peak wheel horsepower while operating at slightly lower boost pressure in this specific application. Actual results will vary depending on vehicle configuration, calibration strategy, environmental conditions, and supporting components.
Engineering & Intellectual Property
Garrett turbochargers are engineered through extensive motorsports and OEM development programs. Garrett’s technologies are protected by a number of intellectual property rights in the USA and other countries, for example by U.S. patents US9850911B2; US10047607B2; US10502263B2.
Why Choose Garrett
Trust the name that’s been powering innovation for over 70 years. Garrett turbochargers are engineered to meticulous standards used in OEM production environments and validated through decades of motorsports and advanced engineering programs. With more than 130 million vehicles powered globally, Garrett delivers performance, reliability, and innovation you can trust.
Turbo Speed Monitoring
This Garrett turbocharger features a fully machined turbo speed sensor port. Monitoring turbocharger shaft speed is recommended to help prevent overspeed and protect long-term durability, especially when operating at higher performance levels. Compatible speed sensor kits are available separately. Use PN 923586-0002 (G-Smart Bluetooth Module / App) or Speed Sensor Kit 781328-0001 (street kit w/ gauge) or 781328-0002 (pro kit w/o gauge)
FAQ
Where can I buy the Garrett GXR42-71 turbocharger?
Use the Garrett Dealer Locator to find an authorized retailer or distributor. Purchasing through an authorized source ensures product authenticity, technical support, and warranty coverage.
Will I need to retune my engine when installing a G-XRace turbocharger?
Yes. Performance results are highly dependent on vehicle configuration and ECU calibration. The increased airflow capability of the G-XRace compressor requires proper tuning to optimize performance, drivability, and durability.
What horsepower can the G-XRace 42-71 support in real-world applications?
The G-XRace is capable of supporting up to 1300 horsepower based on compressor flow testing. Actual results will vary depending on engine displacement, fuel type, boost pressure, supporting modifications, and calibration strategy.
How does G-XRace differ from the G-Series turbochargers?
G-XRace turbochargers feature updated compressor aerodynamics that provide increased airflow and efficiency compared G-Series. These improvements expand the usable operating range and support higher horsepower and pressure ratio potential, where engine demand allows. The turbine wheel and turbine housings are the same and interchangeable between the two series.
Why is turbo speed monitoring recommended for high-performance applications?
Monitoring turbocharger shaft speed helps prevent overspeed conditions that can affect long-term durability. G-XRace turbochargers feature a fully machined speed sensor port, allowing users to monitor operating conditions, especially at higher performance levels.
