GTX4709R GEN II Turbocharger 76MM
Horsepower: 825 - 1575
Displacement: 2.0L - 10.0L
Features
- GEN II COMPRESSOR WHEEL AERODYNAMICS
- 76mm compressor inducer | 109mm compressor exducer
- 93mm turbine inducer | 84mm turbine exducer
- 15% INCREASED FLOW
- LARGER .88 A/R COMPRESSOR HOUSING VOLUTE
- GTX4709R FEATURES A 109mm COMP EXDUCER ( + 1mm) AND HAS 39% LOWER INERTIA COMPARED TO GTX4708R
- SUPER CORE AND TURBINE HOUSING SOLD SEPARATELY
- COMPATIBLE WITH GT AND GTX TURBINE HOUSINGS
- 76MM SUPER CORE PART NUMBER: 851285-5011S
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GTX4709R GEN II 76mm
Reference Data
The latest Garrett technologies featuring many advanced features.
| GTX4709R GEN II | Reference Data | Compressor | Turbine | ||||||
|---|---|---|---|---|---|---|---|---|
| Super Core PN | Replaces | Inducer | Exducer | Trim | A/R | Inducer | Exducer | Trim |
| 851285-5011S | NEW | 76mm | 109mm | 49 | 0.88 | 93mm | 84mm | 82 |
| 851285-5012S | NEW | 80mm | 109mm | 54 | 0.88 | 93mm | 84mm | 82 |
| Notes: | Turbine Kit PN | A/R | Inlet | Outlet | Wastegate | Divided | Trim | |
| Super Core and Turbine Kit Sold Separately | 761208-0009 | 0.96 | T6 | V-Band | Free Float | N | 82 | |
| 761208-0010 | 1.08 | T6 | V-Band | Free Float | N | 82 | ||
| 761208-0011 | 1.23 | T6 | V-Band | Free Float | N | 82 | ||
| 761208-0012 | 1.39 | T6 | V-Band | Free Float | N | 82 | ||
GTX4709R GEN II 76mm
Download Section
The latest Garrett technologies featuring many advanced features.
GTX4709R GEN II 76mm
Compressor Map & Exhaust Flow Chart
The latest Garrett technologies featuring many advanced features.
Compressor Map
Exhaust Flow Chart
Gen II Compressor Wheel Dimensions and Aerodynamics
GTX4709R GTX5009R Available in 76mm and 80mm inducer diameters
- Comp exducer is now 109mm (+1mm vs Gen I)
- Gen II wheel produces 15% more air flow
- 39% lower inertia
GTX4720R GTX5020R Available in 76mm, 80mm, and 88mm inducer diameters
- Comp exducer is now 120mm (+2mm vs Gen 1)
- Gen II wheel produces 9% more air flow
- 30% lower inertia
- Reduced inertia due to reduction of material in the hub and blades
- Roughly 20% lower mass
- Lower inertia helps make boost faster and increases overall turbo efficiency
- Increased flow has potential to make more power at same boost or same power at lower boost levels
Larger Comp Exducer on Gen II
.88 A/R Compressor Housing
Gen II features a larger .88 A/R (Gen I .69 A/R)
- This helps maximize the power capacity of the new compressor wheel.
- This is also the same compressor housing used on the GTX5533R (85mm and 88mm)
Larger Compressor Volute
.88 A/R Compressor Housing
Gen II features a larger .88 A/R compressor housing that will cause an increase in outline dimensions only on the cold side of the turbo.
- +6mm longer on the comp outlet Fig. A
- +10mm longer on the comp inlet Fig. B
- Comp outlet diameter 107mm (same)
- Not outline interchangeable with gen 1
Dimensional Compressor Measurements vs. Gen I
Additional Features
- Lightweight billet backplate
- (NEW) Backplate to compressor housing O-ring
- Speed sensor port compatible only with new flange style speed sensors: (pn 781328-0003 Street Kit | pn 781328-0004 Pro)
Compatible only with New G Series Speed Sensor
