Tuesday, January 29, 2008

2008 Hummer H3 Alpha


2008 HUMMER H3 Alpha Specifications

Overview

Model: HUMMER H3 Alpha
Body style / driveline: 4-door, 5-passenger hard-top 4-wheel-drive
EPA vehicle class: midsize sport utility
Construction: welded steel frame, electro galvanized steel
Manufacturing location: Shreveport, La.
Key competitors: Toyota 4Runner; Jeep Grand Cherokee, Jeep Wrangler Rubicon Unlimited, Toyota FJ Cruiser, Nissan Pathfinder, BMW X3

Engine

Type: 5.3L V-8
Displacement (cu in / cc): 325 / 5328
Bore & stroke (in / mm): 3.78 x 3.62 / 96 x 92
Block material: cast aluminum
Cylinder head material: cast aluminum
Valvetrain: OHV, 2 valves per cylinder
Ignition system: coil near plug, composite intake manifold, platinum-tipped spark plugs, low-resistance spark plug wires
Fuel delivery: sequential fuel injection
Compression ratio: 9.9:1
Horsepower (hp / kW @ rpm): 295 / 224 @ 5200*
Torque (lb.-ft. / Nm @ rpm): 317 / 438 @ 4000*
Recommended fuel: regular unleaded
Maximum engine speed (rpm): 6000
Emissions controls: close-coupled catalytic converter, Quick Sync 58X ignition, returnless fuel rail, fast-response O² sensor
Fuel economy (mpg city / hwy): TBD

Transmission


Hydra-Matic 4L60
Type: 4-speed electronically controlled automatic
Gear ratios (:1):
First: 3.06
Second: 1.63
Third: 1.00
Fourth: 0.70
Reverse: 2.29
Stall ratio: 1.90
Final drive axle ratio: 4.10
Low range lock gear reduction: 2.64 std, 4.03 opt
Crawl ratio (range): 33:1 std, 50:1 opt

Chassis/Suspension

Front: independent SLA torsion bar, 46-mm monotube gas-charged shocks, 36-mm tubular stabilizer bar
Rear: Hotchkiss” design multileaf, semi-elliptic dual-stage leaf spring, 46mm mono-tube gas-charged shocks, 25mm rear solid diameter stabilizer bar
Steering type: power-assisted rack-and-pinion, with tri-bushing mount design
Steering ratio: 17:1
Steering wheel turns, lock-to-lock: 3.25
Turning circle, curb-to-curb (ft / m): 37 / 11.3

Brakes

Type: electro-hydraulic power 4-wheel disc, 4-wheel anti-lock, four-piston opposed (fixed) front caliper/single piston sliding rear caliper with Dynamic Rear Proportioning
Rotor diameter x thickness (in / mm): front: 12.4 x 1.1 / 315 x 28
rear: 12.28 x 0.47 / 312 x 12
Total swept area (sq in / sq cm): front: 69.4 / 448
rear: 51 / 328

Wheels/Tires

Wheel size & type: 16-inch x 7.5-inch aluminum
Tires: std: P265/75R16 all terrain steel-belted Goodyear radials opt: LT285/75R16 on-/off-road Bridgestone radials (with ZM6 Off-Road Adventure package)
Spare tire: full-size spare

Dimensions

Wheelbase (in / mm): 111.9 / 2842
Overall length w/ spare and 33-inch tires (in / mm): 186.7 / 4742
Overall width (in / mm): 85.5 / 2170.6
Overall height (in / mm): 74.5 / 1893
Track (in / mm):

front: 65 / 1651

rear: 65.5 / 1664
Minimum ground clearance front (in / mm): w/ 33-inch tires: 9.1 / 231
w/ 32-inch tires: 8.5 / 216
Step-in height (in / mm):
Front: w/ 32-inch tires: 24 / 609.2
w/ 33-inch tires: 24.7 / 628
Rear: w/ 32-inch tires: 24.5 / 623.5
w/ 33-inch tires: 25.3 / 643.5
RTI 21.7
Approach angle (degrees): w/ 32-inch tires: 37.5
w/ 33-inch tires: 39.4
Departure angle (degrees): w/ 32-inch tires: 35.5
w/ 33-inch tires: 36.5
Breakover angle (degrees): w/ 32-inch tires: 23.5
w/ 33-inch tires: 25
Grade capability (percent): 60
Side slope capability (percent): 40
Water fording capability (in / mm): 24/610 (at 5 mph)
Curb weight (lb / kg): 4854 / 2206

Interior

Seating capacity: 5
Headroom (in / mm):
Front: w/ sunroof: 39.9 / 1013
w/o sunroof: 40.6 / 1032
Rear: w/ sunroof: 37.9 / 963.5
w/o sunroof: 39.9 / 1013
Legroom (in / mm):
Front: 41.9 / 1063
Rear: 35 / 890
Shoulder room (in / mm):
Front: 54.4 / 1381.3
Rear: 53.5 / 1358
Hip room (in / mm):
Front: 53.9 / 1370
Rear: 49.5 / 1258

Capacities

Cargo capacity (rear seat up) (cu ft / L):
Rear seat up: 29.5 / 835.3
Rear seat down: 55.7 / 1577
Cargo area length (at floor) (in / mm):
Rear seat up: 32 / 810.5
Rear seat down: 63.5 / 1614
Cargo area height (rear floor to headliner) (in / mm): 37 / 939
Cargo area width between wheelhouses (in / mm): 42.1 / 1070
GVWR, standard (lb / kg): 6001 / 2728
Payload, base (lb / kg): 1150 / 521.6 (est.)
Fuel tank (gal / L): 23 / 87
Engine oil (qt / L): 6 / 5.7
Maximum trailer weight (lb / kg): 6000 / 2721 (est.)
Maximum tongue weight (lb / kg): up to 450 / 204 (est.)

*Pending SAE certification.



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