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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > General H2 Discussion

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  #1  
Old 08-10-2009, 03:19 PM
OrangeCrush OrangeCrush is offline
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Default Re: Question for Hummer Pro's

Quote:
Originally Posted by HummerMann
Gears or a supercharger PERIOD

X2....

When I did my first H2, I did gears at first to make up for the larger tires... It helped but not enough. Later I installed a supercharger.

My present SUT has 37's on it with no gears and no supercharger. It's gutless.

Soooo, this weekend I installed a supercharger. Haven't driven it yet since I don't have the correct fuel block but I'm gonna try this way without gears this time.

I'll let ya know how it works.

Mark
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  #2  
Old 08-10-2009, 06:13 PM
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H2Much H2Much is offline
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Default Re: Question for Hummer Pro's

Thanks boys, looks like I am going to need to regear since I don't have $6 - $7 grand laying around.
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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  #3  
Old 08-10-2009, 06:27 PM
Cesardajr Cesardajr is offline
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Cool Re: Question for Hummer Pro's

what type of chip are you running?
i have the hypertech tunner running the basic tune with 37"s and i have good pep and no problems on the freeway going 65-75.
the tunner asked if i had bigger tires and if i changed gears, it is supposed to adjust your shift points and add pep.
did your chip just adjust your engine power? did/does it adjust for bigger tires?
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2006 Yellow H2 Lux Series
Front 2.5 X 7/8 Remote Reservoir Fox Shocks
Rear 2.5 X 7/8 Piggyback Reservoir Fox Shocks
37x12.50xR17 BFG Mud Terrain's
Ready Lift Front Leveling Kit 2 1/2"
Cognito Steering Support Kit
Cognito Idler Pivot Kit
Fabtech Steering Stabilizer
Fabtech Tie Rods
Power Slot Slotted Rotors
Crown Performance Stainless Steel Braided Brake Lines
Off Road Unlimited Black Diff Cover & RP Diff Fluid
Hypertech Power Programmer
True Flow Foam Air Filter

Last edited by Cesardajr : 08-10-2009 at 06:30 PM.
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  #4  
Old 08-11-2009, 03:04 AM
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[__--MUD--__] [__--MUD--__] is offline
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Default Re: Question for Hummer Pro's

Quote:
Originally Posted by H2Much
Thanks boys, looks like I am going to need to regear since I don't have $6 - $7 grand laying around.

If you look hard enough, you can find some magnachargers used for $1500-3000. They are good to 100,000 as long as they were taken care of. Even if it has high mileage, sending it back to the manufactuere for a total rebuild would only be around $1200, still cheaper than brand new.
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  #5  
Old 08-12-2009, 06:04 AM
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H2Much H2Much is offline
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Default Re: Question for Hummer Pro's

Thanks for the tip Mud- yah, I am running a Superchips Cortex right now. It definetely helps from how it was running before right after adding the bigger tires, but my biggest thing is that most of the highways around here are 75, so I am needing to keep it between 75 or 80. Between 65 and 74ish, it runs great, but anything above that it is downshifting into 3rd. I guess I might as well start the quest for a supercharger, because I am not hearing good stuff from everyone about regearing. Mo $$$, Mo problems!
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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  #6  
Old 08-26-2009, 05:42 AM
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H2Much H2Much is offline
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Default Re: Question for Hummer Pro's

One more question to add to this: If I do go with the regear, will my chip still help it to perform at least half way decent? I am reading everyone saying their ride is gutless after the regear, I wonder if my chip would help this...
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Sweet looking H2 with not enough mods (2003 Pewter H2, 20" Rockstars, 40"x15.5" Toyo MT's, E&G Extended Flares, Full body tube steel exoskeleton, 5" Skyjacker lift, Amp Research steps, Gobi Roofrack and ladders, Smoked LED's, AFe CAI, Dynatech long tubes and cats, Magnaflow exhaust, Stock tune, 4.88 gears, Chrome Grenade Shifter, interior blacked out, rear captains chairs, Solar Power!!)
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  #7  
Old 08-26-2009, 08:25 AM
MAXFL MAXFL is offline
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Default Re: Question for Hummer Pro's

Gears will greatly improve performance with larger tires. Your programmer will still work and allow you to adjust for the tire size/gear ratio change to keep your speedo accurate.
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