Features
• G Series compressor aero increases flow up to 32% (compared to GTX4088R)
• 62mm and 71mm compressor inducer sizes
• Dual ceramic ball bearing with steel cages
• G Series turbine aero increases flow 16% (compared to GTX4088R)
• Inconel turbine wheel with 77mm inducer flows up to 43 lbs/min
• Lightweight aluminum backplate
• Fully machined speed sensor and pressure ports
• Water fittings included with super core
• Stainless steel turbine housings available with V-Band and T4 twin scroll inlet
• T4 turbine housing outlet V-Band dimension (117.4mm | 4.622” OD) is equal to existing GTX42, GTX45 and G42 models
G40-900 Part Number: 860777-5003S
WARNING: Maximum allowable turbocharger speed is 125krpm. 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.
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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
G40-900 Dyno Performance Data: George Kiriakopoulos
When a new turbo comes out it’s exciting to see dyno performance data numbers. The G40-900 made 905WHP on George’s 370Z Read More!
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.
How To Select A Turbo Part 2: Calculations
Turbo any engine once you apply these calculations. Find the compressor that matches your inputs and you are on your way to turbocharging any engine
Garrett Performance Intercoolers
Performance Intercoolers Garrett performance intercoolers and intercooler cores work together with the turbocharger as part of the total induction system. When air is compressed in…
G-Series G40-900 62mm
Reference Data
| G40-900 | Compressor | Turbine | |||||
|---|---|---|---|---|---|---|---|
| Inducer | Exducer | Trim | A/R | Inducer | Exducer | Trim | |
| HP: 500-900 Disp: 2.0L-6.0L | 62mm | 88mm | 51 | 0.80 | 77mm | 70mm | 84 |
| Supercore | PN | ||||||
| Standard Rotation | 860777-5003S | ||||||
| Turbine Kits: G40 | PN | A/R | Inlet | Outlet | Wastegate | Divided | |
| Free Float Turbine Housing | 757707-0027 | 0.85 | V-Band | V-Band | Free Float | N | |
| 757707-0028 | 0.95 | V-Band | V-Band | Free Float | N | ||
| 757707-0029 | 1.06 | V-Band | V-Band | Free Float | N | ||
| 757707-0030 | 1.19 | V-Band | V-Band | Free Float | N | ||
| 757707-0032 | 0.85 | T4 | V-Band | Free Float | Y | ||
| 757707-0033 | 0.95 | T4 | V-Band | Free Float | Y | ||
| 757707-0034 | 1.06 | T4 | V-Band | Free Float | Y | ||
| 757707-0035 | 1.19 | T4 | V-Band | Free Float | Y | ||
G-Series G40-900 62mm
Compressor Map & Exhaust Flow Chart
Compressor Map
Exhaust Flow Chart
Compressor Stage
G Series G40 is available in 2 compressor inducer sizes. G40-900 (62mm) and G40-1150 (71mm) You can click the hyperlinks to go directly to those product pages. Both G40 models are interchangeable meaning they are the same size and can be swapped out without having to reconfigure any other turbo kit parts.
G40 Turbine Housing Kits
G40 turbine housing kits are available in four A/R. 0.85 A/R | 0.95 A/R | 1.06 A/R | 1.19 A/R stainless steel housings with T4 divided inlet flange and V-Band Inlet. The largest 1.19 A/R T4 turbine housing flows 43 LBS/MIN of air which is a 16% increase over the GTX4088R turbine wheel.
G40 Dimensions
Here’s how G40 G42 Compact and GTX4088R stack up against each other in size.
