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New Hummer H3 Alpha

Posted by Automotive news Tuesday, August 9, 2011

Hummer H3 Alpha
Offering the towing capability that only a V-8 can, the 2008 H3 Alpha broadens HUMMER's range of versatile, do-anything and go-anywhere vehicles. HUMMER announced the H3 Alpha at the New York Auto Show; it goes on sale this summer.The H3 Alpha is the second member of HUMMER's exclusive Alpha series, representing the pinnacle of performance, both off the road and on it. It comes with a new, 5.3L V-8 engine that delivers 295 horsepower (224 kW) and 317 lb.-ft. of torque (438 Nm). It is partnered with a four-speed automatic transmission and enables a maximum towing capacity of 6,000 pounds (2,721 kg) - an increase of more than 33 percent over other H3 models.want to know??


"H3 Alpha is, simply, the ultimate HUMMER H3," said Martin Walsh, HUMMER general manager. "It delivers all of H3's renowned off-road capability, but with enhanced performance that is suited to a variety of lifestyles."In addition to the V-8 engine, the H3 Alpha also includes the popular "Luxury" equipment package, the Chrome Appearance package, 16-inch chrome wheels, a 4.10 rear axle ratio and special Alpha identification, including a prominent tailgate badge, horn pad badge and embroidered front headrests with the "Alpha" insignia.


For customers who want a more accessorized appearance straight from the factory, the Alpha model can be combined with the H3 X content, which includes bright roof crossbows, chrome fuel door, a body-color grille and unique spare tire cover, tires, wheels and center cap, and a brush guard. Additionally, HUMMER Accessories offers an exclusive line of GM-designed, manufactured and validated accessories that are engineered and tested for no-compromises fit, finish and performance.


Also new for the H3 Alpha and the entire 2008 H3 lineup are standard head curtain side air bags; they were previously optional. Additional standard safety features now found on all H3 models include:

    * StabiliTrak electronic stability control system
    * Four-wheel antilock brakes with traction control
    * Dual front air bags with Passenger Sensing System
    * Tire pressure monitoring system
    * Vehicle-to-vehicle crash compatibility
    * LATCH rear child seat anchors

HUMMER's Rear Vision system and a navigation system are available. The Rear Vision system uses a camera mounted near the rear bumper to provide a view of objects directly behind the vehicle. Also, the safety and security of OnStar is standard, and its new Turn-By-Turn Navigation feature is available.

Powertrain details

The H3 Alpha's 5.3L engine is a powerful and efficient member of GM's legendary small-block V-8 family. It is rated at 295 horsepower (224 kW) and 317 lb.-ft. of torque (438 Nm); and is similar to the small-block V-8 found in the Chevy Silverado, which was named the 2007 Truck of the Year at the North American International Auto Show.

"For jobs such as towing personal watercraft up a mountain to the lake, the small-block V-8's torque performs with effortless ease and little impact on fuel mileage," said Christopher Meagher, assistant chief engineer of small-block V-8 truck engines. "The 5.3L engine greatly broadens the H3's towing capability."

Effortless highway driving also is an attribute of the 5.3L V-8, which enables 0-60 mph performance of approximately eight seconds.

"All of the powertrain options in the H3 lineup deliver performance suited to different driving styles and needs," said Meagher. "But when it comes to certain tasks such as towing, there is sometimes no substitute for a V-8 engine."

An aluminum cylinder block is used with the H3 Alpha's engine. It helps reduce overall mass and maintains a more desirable front-to-rear weight balance. Like all of GM's small-block V-8 engines, highlights include:

    * Deep-skirt cylinder block with cross-bolted main caps
    * High-flow cylinder heads
    * Electronic throttle control
    * 58X ignition system
    * E67 32-bit controller
    * Polymer-coated pistons with full-floating wrist pins
    * Returnless fuel system
    * Lightweight valvetrain
    * Steel camshaft
    * Low-restriction air intake system

GM's small-block V-8 engines are engineered to meet today's more stringent emissions standards. In fact, the H3 Alpha's V-8 engine beats the deadline for new, U.S. federal emissions standards by a year. And compared to truck engines of a decade ago, the small-block engine family is approximately 90 percent cleaner. Cast iron exhaust manifolds matched with four close-coupled catalytic converters help reduce cold-start emissions, which is the largest source of vehicle emissions.





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