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2006 Duramax 6600 Turbodiesel to Deliver Class-leading Torque in a More Powerful and Refined Package
Engine output for Chevy Silverado HD and GMC Sierra HD increased to 360 horsepower and a class-leading 650 lb-ft of torque
Significant updates result in smoother, more refined operation, as well as reduced emissions
New glow-plugs reduce start time by as much as 50 percent
PONTIAC , MICH. – Later this year, GM Powertrain will introduce a new 6. 6L Duramax 6600 turbodiesel V-8 (RPO LBZ) for the 2006 model year Chevy Silverado HD and GMC Sierra HD with class-leading horsepower – 360 (268 kw) at 3200 rpm and class-leading torque, at 650 lb. -ft. (881 Nm) at 1600 rpm. In addition to the power increase in the Silverado and Sierra, all 2006 Duramax engines have been significantly revised to deliver lower emissions and significantly improved quietness and smoothness in every application.
The 2006 Silverado HD and Sierra HD with the Allison 6-speed automatic transmission will be equipped with a significantly revised 310 horsepower Duramax 6600 (LLY) through the third quarter of 2005. It will be replaced in these applications in the fourth quarter of 2005, by the higher output, 360-horsepower Duramax (LBZ).
Another new feature of the Duramax 6600’s turbo system is the capability of the variable-geometry turbocharger to provide exhaust braking. This function is available on some medium-duty truck models and can replace add-on exhaust brake hardware. With the new system, braking is controlled by a signal from the engine controller and can be activated by the driver.
The comprehensive list of changes and upgrades to the 2006 Duramax 6600 includes:
Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque
Upgraded main bearing material increases durability
Revised piston design helps lower compression ratio to 16. 8:1 from 17. 5:1
Piston pin bore diameter increased for increased strength
Connecting rod “ I ” section is thicker for increased strength
Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure
Maximum injection pressure increased from 23,000 psi to more than 26,000 psi
Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors
Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions
Improved glow plugs heat up faster through an independent controller
Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions
Air induction system re-tuned to enhance quietness
EGR has larger cooler to bring more exhaust into the system
First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions
then cummins'll simply add 50 more horses & 100ft-lbs.
dodge'll add 5-speed mb auto.
simple.
dt
2006 Duramax 6600 Turbodiesel to Deliver Class-leading Torque in a More Powerful and Refined Package
Engine output for Chevy Silverado HD and GMC Sierra HD increased to 360 horsepower and a class-leading 650 lb-ft of torque
Significant updates result in smoother, more refined operation, as well as reduced emissions
New glow-plugs reduce start time by as much as 50 percent
PONTIAC , MICH. – Later this year, GM Powertrain will introduce a new 6. 6L Duramax 6600 turbodiesel V-8 (RPO LBZ) for the 2006 model year Chevy Silverado HD and GMC Sierra HD with class-leading horsepower – 360 (268 kw) at 3200 rpm and class-leading torque, at 650 lb. -ft. (881 Nm) at 1600 rpm. In addition to the power increase in the Silverado and Sierra, all 2006 Duramax engines have been significantly revised to deliver lower emissions and significantly improved quietness and smoothness in every application.
The 2006 Silverado HD and Sierra HD with the Allison 6-speed automatic transmission will be equipped with a significantly revised 310 horsepower Duramax 6600 (LLY) through the third quarter of 2005. It will be replaced in these applications in the fourth quarter of 2005, by the higher output, 360-horsepower Duramax (LBZ).
Another new feature of the Duramax 6600’s turbo system is the capability of the variable-geometry turbocharger to provide exhaust braking. This function is available on some medium-duty truck models and can replace add-on exhaust brake hardware. With the new system, braking is controlled by a signal from the engine controller and can be activated by the driver.
The comprehensive list of changes and upgrades to the 2006 Duramax 6600 includes:
Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased horsepower and torque
Upgraded main bearing material increases durability
Revised piston design helps lower compression ratio to 16. 8:1 from 17. 5:1
Piston pin bore diameter increased for increased strength
Connecting rod “ I ” section is thicker for increased strength
Cylinder heads revised to accommodate lower compression and reduced cylinder firing pressure
Maximum injection pressure increased from 23,000 psi to more than 26,000 psi
Fuel delivered via higher-pressure pump, fuel rails, distribution lines and all-new, seven-hole fuel injectors
Fuel injectors spray directly onto glow plugs, providing faster, better-quality starts and more complete cold-start combustion for reduced emissions
Improved glow plugs heat up faster through an independent controller
Revised variable-geometry turbocharger is aerodynamically more efficient to help deliver smooth and immediate response and lower emissions
Air induction system re-tuned to enhance quietness
EGR has larger cooler to bring more exhaust into the system
First application of new, 32-bit E35 controller, which adjusts and compensates for the fuel flow to bolster efficiency and reduce emissions
then cummins'll simply add 50 more horses & 100ft-lbs.
dodge'll add 5-speed mb auto.
simple. dt
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