* Estimated. 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.
2004.5 – 2010 GM 6.6L DURAMAX
COMPRESSOR MAP
2004.5 – 2010 GM 6.6L DURAMAX
Performance Comparison Sheet
Part Number 773540-5001S (590HP*) Stage 1
The Duramax Stage 1 turbocharger kit features Garrett patented Advanced Variable Nozzle Turbine AVNT™ design for increased compressor and turbine flow. The GT Series wheel design ensures top performance, lower back pressure, and reduces intake and exhaust gas temperatures. The unique design features nine movable vanes which significantly increase turbine efficiency and improve engine performance from idle launch through peak torque. Patented integral electro-hydraulic actuation and proportional solenoid allow for infinitely variable control. Suitable as a performance upgrade or replacement for original equipment. Outline interchangeable with the OE turbo for perfect fit each and every time.
Part Number 773542-5001S (630HP*) Stage 2
The Duramax Stage 2 turbocharger kit features Garrett patented Advanced Variable Nozzle Turbine AVNT™ design for increased compressor and turbine flow. Utilizes nine movable vanes which significantly increase turbine efficiency and improve engine performance from idle launch through peak torque. Patented integral electro-hydraulic actuation and proportional solenoid allow for infinitely variable control. Larger compressor trim (52), plus larger GT40 turbine wheel and vanes. Outline interchangeable with the OE turbo for perfect fit each and every time.
| Compressor | Turbine | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CHEVY | GMC Duramax Upgrade | Turbo PN | HP* | Inducer | Exducer | Trim | A/R | Inducer | Exducer | Trim | A/R |
| Duramax 6.6L 2004.5-2009 Stage 1 | 773540-5001S | 590 | 65mm | 94mm | 48 | 0.58 | 73mm | 67mm | 78 | 0.90 |
| Duramax 6.6L 2004.5-2009 Stage 2 | 773542-5001S | 630 | 68mm | 94mm | 52 | 0.58 | 77mm | 68mm | 79 | 0.90 |
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