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09-15-2008, 04:50 AM
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Hummer Authority
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Re: 37's or No 37's
Performance is loss is not a sure thing because most of the time you are traveling at lower speed and lower tranny gear. When off road use tow haul button allot and it increases line pressure and allows the gears to stay in for longer RPM.
If real unhappy gain HP/tor with electric fans and even can gain 10to 15 hp with electric water pump. Many minor things can be done befor going to a supercharger. In fact gear ratio change would cost allot less than SC.
Good luck,
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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09-15-2008, 05:20 AM
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Hummer Professional
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Join Date: Sep 2008
Location: Utah
Posts: 293
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Re: 37's or No 37's
Gunzz, if you do go 37's, you will want to have it re-geared. If anything, to make it easier on the tranny. Iv'e noticed with my 37's, I have issues with it downshifting in and out of overdrive around 75 mph. I have also noticed that in the lower speeds, going up hills or inclines, that it pushes up to 5000 rpm's, and you can feel how hard the car works when shifting. Really, it is much cheaper to just regear it, and it will ride the way it should without working your tranny too much, definetely the better choice over time in the long run. Be sure to look into everything before going with a lift, as you will run into serious issues with the airride, just like I have.
__________________
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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09-16-2008, 08:13 PM
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Hummer Veteran
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Join Date: Apr 2006
Location: New Jersey
Posts: 139
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Re: 37's or No 37's
Well thanks for the replies. Maybe I will forget the 37's and stick with the 35's and have less to worry about. If it wasn't my everyday driver I would definately go for the 37's but since it is guess for my needs the 35's will be fine. I don't even want to think about regearing etc.., since I am in warranty and do not want to void any of that.
So mud terrain 35's should do me fine. Thanks again  |
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