Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

mpg after upgrading to 285's

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  #21  
Old 01-13-2012, 12:39 PM
Doc Olds's Avatar
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Originally Posted by BumChuck
I have 325/60/R20 Pirelli's and i'm getting around 11.2 MPG!!! It sucks I know, but you need to look at my H3 and see that it completely worth the REALLY BAD MPG!!!
Pics PLEASE! Pics....... let's see em.
 
  #22  
Old 01-13-2012, 12:53 PM
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My 07 adventure came with 285, when I went to 305 MTZs (MeaTZs ) which are 1" wider and still 33" tall so I retained the final drive ratio I started with, and with performance mods I have overcome my off road mods to actually end up with better MPG than I started with bone stock. I keep the MTZs @ 40 PSI cold on the street.

Performance Mods: Air Doc Intake w/ K&N filter, PCM tune, MagnaFlow CAT Back, Efan conversion, port/polish TB .... = lots of extra balz.

Off Road Mods: Leveled the front across L to R, and up to 23.4" [hub center to fender] or so, Rocky Road Super Sliderz, BA winch bumper w/ MM9500, Roc Doc Rear Diff Cover and U Bolt Skidz .... = aero hit and lots of extra weight.


Where you kill MPG is how you start from a stop, be easy in that department alone and it will help a lot. I also never go more that 75/76 MPH on the Eway. No point in being in a hurry driving a brick. 17.5-18 MPG all the time, and a tad better on the Hwy.
 

Last edited by Doc Olds; 01-13-2012 at 01:15 PM.
  #23  
Old 01-13-2012, 03:54 PM
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265-- 285 Duratracks= noticable drop in mileage. Still love'm though.
 
  #24  
Old 01-13-2012, 04:00 PM
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Doc,

You have any pics of your rig?? I wanna see how it looks with the Sliderz and the Tires!

Thanks!
 
  #25  
Old 01-13-2012, 05:08 PM
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Originally Posted by Doc Olds
Pics PLEASE! Pics....... let's see em.
Here they go! I'll take better pics tomorrow!

 
  #26  
Old 01-13-2012, 11:36 PM
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Originally Posted by kshummer
Doc,

You have any pics of your rig?? I wanna see how it looks with the Sliderz and the Tires!

Thanks!
I have many pix of Docs rig, here are a few:

Me on the left, Doc on the right:
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  #27  
Old 01-14-2012, 08:14 AM
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Very nice!
 
  #28  
Old 01-16-2012, 10:59 AM
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Thanks for the pics Tainter!

Thanks for the compliments kshummer.
 
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