Features
Product Features:
• XBoost Technology increases power and performance
• +11% compressor flow (GXR45-73 compared to G45-1350)
• Enhanced pressure ratio capability and higher boost pressure
• Increased efficiency at high flow rates
• Lower intake temperature
• 73.9mm compressor inducer | 102mm compressor exducer
• For use in drag racing classes with compressor wheel inducer limits 73.9. Please verify class rules before purchasing
• Lightweight aluminum backplate
• Utilizes the same twin-scroll T4 and V-Band turbine housings as G-Series to enable an easy upgrade
WARNING: Maximum allowable turbocharger speed is 109krpm. 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.
GXR45-73 Supercore PN 934173-5004S
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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.”
Learn More About Race Vehicle Setups
How To Select A Turbo Part 1
With over 35 Garrett turbos to choose, how do you select the right one? This provides some insight into the complicated process.
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G-XRace GXR45-73 73.9mm
Reference Data
| GXR45-73 | Compressor | Turbine | |||||
|---|---|---|---|---|---|---|---|
| Inducer | Exducer | Trim | A/R | Inducer | Exducer | Trim | |
| HP: 750-1550 Disp: 2.0L-8.0L | 73.9mm | 102mm | 52 | 0.85 | 89mm | 82mm | 84 |
| Supercore | PN | ||||||
| Standard Rotation | 934173-5004S | ||||||
| Turbine Kits: | PN | A/R | Inlet | Outlet | Wastegate | Divided | |
| Free Float Turbine Housing | 757707-0019 | 1.01 | V-Band | V-Band | Free Float | N | |
| 757707-0020 | 1.15 | V-Band | V-Band | Free Float | N | ||
| 757707-0021 | 1.28 | V-Band | V-Band | Free Float | N | ||
| 757707-0022 | 1.44 | V-Band | V-Band | Free Float | N | ||
| 757707-0023 | 1.01 | T4 | V-Band | Free Float | Y | ||
| 757707-0024 | 1.15 | T4 | V-Band | Free Float | Y | ||
| 757707-0025 | 1.28 | T4 | V-Band | Free Float | Y | ||
| 757707-0026 | 1.44 | T4 | V-Band | Free Float | Y | ||
G-XRace GXR45-73 73.9mm
Compressor Map & Exhaust Flow Chart
Compressor Map
Exhaust Flow Chart
G-XRace Compressor Stage
G-XRace compressor stage delivers enhanced pressure ratio capability and higher boost pressure with XBoost technology. You will notice increased efficiency at high flow rates and lower intake temperatures.
G-XRace Turbine Housing Kits
G-XRace GXR45 turbine housing kits are available in four A/R. 1.01 A/R | 1.15 A/R | 1.28 | 1.44 A/R stainless steel housings with T4 divided or V-Band turbine inlet flanges. G-XRace utilizes the same twin-scroll T4 and V-Band turbine housings as G-Series to enable an easy upgrade.
XBoost Technology In Action
See how G-XRace compares to its G-Series companion. Compressor map overlays show the flow performance of the turbocharger.
