Horsepower: 500 - 1150
Displacement: 2.0L - 6.0L
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 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
G-Series G40-1150 71mm
Reference Data
The latest Garrett technologies featuring many advanced features.
G40-1150 Supercore Reference Data
SuperCore PN: 860777-5002S |
Compressor | Turbine | |||||
---|---|---|---|---|---|---|---|
Inducer | Exducer | Trim | A/R | Inducer | Exducer | Trim | |
71mm | 88mm | 65 | 0.80 | 77mm | 70mm | 84 |
G40 Turbine Housing Kits | Turbine Kit PN | A/R | Inlet | Outlet | Wastegate | Divided | |
---|---|---|---|---|---|---|---|
Free float / non-wastegated turbine housing kits are sold independently of the super core |
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 G40-1150 71mm
Download Section
The latest Garrett technologies featuring many advanced features.
G-Series G40-1150 71mm
Compressor Map & Exhaust Flow Chart
The latest Garrett technologies featuring many advanced features.
Compressor Map

Exhaust Flow Chart

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. 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.
