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05-07-2007, 01:35 AM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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H3 FAQ - Factory Specs
Hummer H3 Factory SpecsBody style - Four-door, five passenger
EPA size class - Midsize SUV
Available Engines
2006Engine - 3.5 L I5 (L52)
Engine Material - aluminum
HP - 220 @ 5600 rpm
Torque (lb-ft) - 225 @ 4600 rpm
Fuel Induction - Sequential MPFI
Bore x stroke - 3.66x4.00 in
Displacement - 211 ci (3.5 L)
Compression ratio - 10.0:1
Valve gear - DOHC, 4 valves/cylinder
Fuel - 87 octane
Est MPG (auto) - 16/19
Est MPG (man) - 16/20
2007-08Engine - 3.7 L I5 (LLR)
Engine Material - aluminum
HP - 242 @ 5600 rpm
Torque (lb-ft) - 242 @ 4600 rpm
Fuel Induction - Sequential MPFI
Bore x stroke - 3.76x4.00 in
Displacement - 223 ci (3.7 L)
Compression ratio - 10.0:1
Valve gear - DOHC, 4 valves/cylinder
Fuel - 87 octane
Est MPG (auto) - 15/19
Est MPG (man) - 15/20
2008 AlphaEngine - 5.3L V8 MFI
Engine Material - aluminum block
HP - 292 @ 5200 rpm
Torque (lb-ft) - 317 @ 4000 rpm
Fuel Induction - MFI
Bore x stroke - ???
Displacement - ???
Compression ratio - ???
Valve gear - ???
Fuel - ???
Est MPG (auto) - ???
Est MPG (man) - ???
PowertrainManual transmission - Aisin AR5 (MA5)1st - 3.75:1
2nd - 2.26:1
3rd - 1.37:1
4th - 1.00:1
5th - 0.73:1
Reverse - 3.67:1
Automatic transmission - 4L60E1st - 3.06:1
2nd - 1.63:1
3rd - 1.00:1
4th - 0.70:1
Reverse - 2.29:1
Transfer caseOEM (Base/Adv) - Borg-Warner 4493/4494
Ratio (Base) - 2.64:1
Ratio (Adventure) - 4.03:1 Axle ratio (non-Alpha) - 4.56:1
Axle ratio (2008 Alpha) - 4.10:1
Crawl Ratio
Base (auto) - 36.8
Base (man) - 45.1
Adventure (auto) - 56.2
Adventure (man) - 68.9
Alpha (auto) - 50.5 DimensionsLength - 186.7 in
Width - 85.5 in
Height - 74.5 in
Wheelbase - 112.0 in
Track, front/rear - 65.0/65.5 in
Turning circle - 37.0 ft
Ground clearance (max) - 9.1 in
Approach angle - 39.4 deg
Departure angle - 36.5 deg
Breakover angle - 25.0 deg
CapacitiesBase curb weight - 4700 lbs
Rear payload, 2006/07/08 Alpha - 950/1150/1530 lbs
Roof payload (factory bars) - 250 lbs
Cargo volume (behind 1st row) - 55.7 cubic ft
Cargo volume (behind 2nd row) - 29.5 cubic ft
Cargo area (behind 1st row) - 41" wide x ???" deep
Cargo area (behind 2nd row) - 41" wide x 28" deep
Fuel capacity - 22.8 gal
Towing
Towing capacity (auto) - 4500 lbs
Towing capacity (man) - 3000 lbs
Towing capacity (2008 Alpha) - 6000 lbs
Trailer Tongue Weight - 500 lbs
GVWR - 5850 lbs
GCWR - 10,000 lbs
GAWR (front) - 3050 lbs
GAWR (rear) - 3200 lbs
Chassis
Suspension (front) - IFS, double A-arm, torsion bar, swaybar
Suspension (rear) - live axle, leaf springs, anti-roll bar
Steering type - Power rack-and-pinion
Steering ratio - 17.0:1
Steering turns (lock to lock) - 3.25 turns
Brakes (front) - 12.4 in vented discs
Brakes (rear) - 12.3 in discs, 4 wheel anti-lock
Tie rod specs - ???
Shock length (front/rear, base/adv) - ???
Wheels/TiresSize - 16x7.5 in
Bolt pattern - 6@5.5” (139.7mm)
Backspacing - 6 in
Offset - 30 mm (1.18 in) negative
Centerbore - 100.6
Tire size (Base) - 31.6 in, P265/75R16 Goodyear Wrangler RTS
Tire size (Adventure) - 32.9 in, LT285/75R16 Bridgestone Dueler A/T
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
Last edited by Wisha Haddan H3 : 05-07-2007 at 10:28 PM.
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05-07-2007, 01:41 AM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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Re: H3 FAQ - Factory Specs
Can someone with a Base H3 check the GAWR numbers inside the driver door? I think they're the same as the Adventure, but I want to make sure.
Also, anyone have specs on the shocks and tie rods? I need something more exact than ???
And of course, feel free to suggest anything I missed.
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
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05-07-2007, 02:03 AM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
Posts: 3,789
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Re: H3 FAQ - Factory Specs
I thought the MPG on the 07's droped to 15 city?
__________________
H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
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05-07-2007, 04:36 AM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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Re: H3 FAQ - Factory Specs
Quote:
Originally Posted by fourfourto
I thought the MPG on the 07's droped to 15 city?
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Oops ... thanks 442. Fixed
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
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05-07-2007, 08:48 PM
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Hummer Guru
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Join Date: Dec 2006
Posts: 2,195
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Re: H3 FAQ - Factory Specs
2007 Base H3:
GAWR FRT: 3050 LBs
GAWR RR: 3200 LBs
__________________
2003 H1 HMCS: Ocean Blue Metallic, Grey Leather Interior
2010 H3 Alpha: Canyon Metallic, Cashmere Interior
2017 VW Jetta S
2012 Cessna 182T Skylane
used to have: 2007 base H3 Slate Blue
/''T''|[___|___]
[---T--L -OlllllllO-]
()_)"""()_)/"**"\)_)
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05-07-2007, 08:58 PM
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Hummer Expert
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Join Date: Oct 2005
Location: somewhere west of north
Posts: 820
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Re: H3 FAQ - Factory Specs
Payload on my '06 says 950lbs, not 1150. Could it have gone up for '07??
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05-07-2007, 09:29 PM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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Re: H3 FAQ - Factory Specs
Quote:
Originally Posted by evldave
Payload on my '06 says 950lbs, not 1150. Could it have gone up for '07??
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I guess so. I don't have the 06 specs, but the 07 specs definitely say 1150 lbs. Thanks for looking this stuff up guys
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
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05-07-2007, 10:28 PM
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Hummer Guru
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Join Date: May 2005
Location: Virginia Beach
Posts: 5,081
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Re: H3 FAQ - Factory Specs
great info, thanx...
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05-07-2007, 10:44 PM
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Re: H3 FAQ - Factory Specs
Quote:
Originally Posted by fourfourto
I thought the MPG on the 07's droped to 15 city?
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Yep. And new revised ratings will be lower for all, and meant to better reflect real mileage.
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05-08-2007, 02:11 PM
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Re: H3 FAQ - Factory Specs
This is a great reference chart, for folks wanting to know the difference. Maybe it should be made into a Sticky.
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05-08-2007, 02:20 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
Posts: 4,744
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Re: H3 FAQ - Factory Specs
2008 Alpha
Engine - 5.3L V8 MFI
Engine Material - aluminum block
HP - 292 @ 5200 rpm
Torque (lb-ft) - 317 @ 4000 rpm
Fuel Induction - MFI
Bore x stroke ? 3.78x3.62 in
Displacement ? 325 ci (5.3L)
Compression ratio ? 9.95:1
Valve gear - OHV
Fuel ? 87 octane
Est MPG (auto) - TBD
Est MPG (man) ? NO MANUAL TRANS
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Black Sheep Hummer Squadron
(ME TOO)
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05-08-2007, 06:02 PM
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Hummer Authority
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Join Date: May 2006
Location: Arvada, CO
Posts: 1,139
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Re: H3 FAQ - Factory Specs
Quote:
Originally Posted by f5fstop
2008 Alpha
Engine - 5.3L V8 MFI
Engine Material - aluminum block
HP - 292 @ 5200 rpm
Torque (lb-ft) - 317 @ 4000 rpm
Fuel Induction - MFI
Bore x stroke ? 3.78x3.62 in
Displacement ? 325 ci (5.3L)
Compression ratio ? 9.95:1
Valve gear - OHV
Fuel ? 87 octane
Est MPG (auto) - TBD
Est MPG (man) ? NO MANUAL TRANS
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Thanks f5! My edit rights ran out on the post, but I'll ask humbebe to add your info
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2007 slate blue 5spd w/ adventure package. Still pretty much stock ... dammit
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05-08-2007, 11:22 PM
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Hummer Professional
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Join Date: Jul 2005
Posts: 278
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Re: H3 FAQ - Factory Specs
Ground clearance: 8.5 inches (32 inch tires), 9.1 inches (33 inch tires)
Approach angle: 37.5 degrees (32 inch tires), 39.4 degrees (33 inch tires)
Departure angle: 35.5 degrees (32 inch tires), 36.5 degrees(33 inch tires)
Breakover angle: 23.5 degrees (32 inch tires), 25.0 degrees(33 inch tires)
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09-08-2007, 01:57 AM
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Hummer Veteran
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Join Date: Sep 2007
Location: Middle Georgia
Posts: 47
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Re: H3 FAQ - Factory Specs
Quote:
Originally Posted by f5fstop
2008 Alpha
Engine - 5.3L V8 MFI
Engine Material - aluminum block
HP - 292 @ 5200 rpm
Torque (lb-ft) - 317 @ 4000 rpm
Fuel Induction - MFI
Bore x stroke – 3.78x3.62 in
Displacement – 325 ci (5.3L)
Compression ratio – 9.95:1
Valve gear - OHV
Fuel – 87 octane
Est MPG (auto) - TBD
Est MPG (man) – NO MANUAL TRANS
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08 alpha (auto) observed mpg = 17mpg
haven't checked around town mpg .... I may not want to.
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2008 Black H3 Alpha, Lux Pkg, 33" MTZ's
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09-08-2007, 02:09 AM
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Hummer Professional
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Join Date: Mar 2007
Posts: 311
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Re: H3 FAQ - Factory Specs
Engine Material - aluminum block??? i'm no expert but i think it's aluminum heads.
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2007 h3x
2006 GMC 2500HD DURAMAX
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09-08-2007, 01:33 PM
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Hummer Expert
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Join Date: Nov 2002
Location: North Texas
Posts: 523
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Re: H3 FAQ - Factory Specs
Yep, it has an aluminum block. But I think it has steel inserts for the cylinders to ride in.
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Jim
2003 H2 Metallic Red (now gone)
2008 H3 Graphite Lux
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09-12-2007, 10:15 PM
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Hummer Guru
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Join Date: Dec 2006
Posts: 2,195
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Re: H3 FAQ - Factory Specs
anyone got a verified 0-60 time and quarter miletime and at what speed and..... top speed. Im just really curious about that.
__________________
2003 H1 HMCS: Ocean Blue Metallic, Grey Leather Interior
2010 H3 Alpha: Canyon Metallic, Cashmere Interior
2017 VW Jetta S
2012 Cessna 182T Skylane
used to have: 2007 base H3 Slate Blue
/''T''|[___|___]
[---T--L -OlllllllO-]
()_)"""()_)/"**"\)_)
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09-12-2007, 10:45 PM
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Hummer Guru
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Join Date: Jul 2005
Posts: 4,123
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Re: H3 FAQ - Factory Specs
Quote:
Originally Posted by 3Hummer
anyone got a verified 0-60 time and quarter miletime and at what speed and..... top speed. Im just really curious about that.
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Why, you planning on racing it?
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09-12-2007, 11:00 PM
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Hummer Guru
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Join Date: Dec 2006
Posts: 2,195
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Re: H3 FAQ - Factory Specs
hahah no, its just something i would like to know about my vehicle.
__________________
2003 H1 HMCS: Ocean Blue Metallic, Grey Leather Interior
2010 H3 Alpha: Canyon Metallic, Cashmere Interior
2017 VW Jetta S
2012 Cessna 182T Skylane
used to have: 2007 base H3 Slate Blue
/''T''|[___|___]
[---T--L -OlllllllO-]
()_)"""()_)/"**"\)_)
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09-14-2007, 03:32 AM
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Hummer Expert
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Join Date: Nov 2002
Location: North Texas
Posts: 523
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Re: H3 FAQ - Factory Specs
Get a stopwatch and tell us what it'll do.
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Jim
2003 H2 Metallic Red (now gone)
2008 H3 Graphite Lux
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