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02-19-2005, 12:46 AM
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Hummer Authority
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Join Date: May 2004
Location: The Carolina's
Posts: 1,198
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My service advisor took one look at my new wheels and "recommended" that I drive around the city in 3rd gear. Reason? Something to do with trying to avoid overdrive engagement and putting undue pressure on the tranny with the heavier upsprung weight. Apparently the larger diameter (albeit marginal) affects the shift points, etc...
Any truth to this or is he smoking dope?
__________________
2006 Fusion Orange Limited Edition H2
2008 Greystone Metallic / Sedona H2 (Sold)
2004 Sage Green H2 LUX w/ Nav (Sold)
2006 Black H3 LUX + Off Road (Sold)
2003 Yellow H2 LUX (Sold)
2003 Pewter H2 Adventure (Sold)
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02-19-2005, 12:46 AM
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Hummer Authority
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Join Date: May 2004
Location: The Carolina's
Posts: 1,198
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My service advisor took one look at my new wheels and "recommended" that I drive around the city in 3rd gear. Reason? Something to do with trying to avoid overdrive engagement and putting undue pressure on the tranny with the heavier upsprung weight. Apparently the larger diameter (albeit marginal) affects the shift points, etc...
Any truth to this or is he smoking dope?
__________________
2006 Fusion Orange Limited Edition H2
2008 Greystone Metallic / Sedona H2 (Sold)
2004 Sage Green H2 LUX w/ Nav (Sold)
2006 Black H3 LUX + Off Road (Sold)
2003 Yellow H2 LUX (Sold)
2003 Pewter H2 Adventure (Sold)
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02-19-2005, 05:37 AM
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Hummer Messiah
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Join Date: Nov 2002
Location: PDX
Posts: 2,367,817
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I think he's a dope.
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02-19-2005, 05:58 AM
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Hummer Authority
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Join Date: May 2004
Location: The Carolina's
Posts: 1,198
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You might be right, DRTY, but then, you think everyone's a dope! 
__________________
2006 Fusion Orange Limited Edition H2
2008 Greystone Metallic / Sedona H2 (Sold)
2004 Sage Green H2 LUX w/ Nav (Sold)
2006 Black H3 LUX + Off Road (Sold)
2003 Yellow H2 LUX (Sold)
2003 Pewter H2 Adventure (Sold)
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02-19-2005, 01:57 PM
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Hummer Authority
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Join Date: Nov 2002
Location: Wherever I Go, There I Am!
Posts: 1,216
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If I can't maintain 50-55 or more MPH, I'm in third! For city driving, It does save a lot of shifting!  |
02-19-2005, 02:18 PM
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Hummer Expert
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Join Date: Mar 2004
Location: Houston, Texas
Posts: 917
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Hey, You need a power programmer. It'll allow you to adjust the size of tires and gear ratio. It will also change the shift points, so you don't jump in and out of gear, as much.
You will notice a decrease in rpm due to larger tires.
A gear swap will help that.. I run 1500rpm @ 50mph. 38" tires.
Looking to swap gears all I can find is 4:56.
Good Luck
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02-19-2005, 03:22 PM
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Hummer Guru
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Join Date: Nov 2003
Location: Yes..I really moved outta Texas!!
Posts: 2,605
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Isn't that what the tow button option we all have, is for?
Doesn't that keep it out of 4 gear until ther is minimal resistance?
That was my understanding.
Ric-H2
__________________
If you can't be a good example...Then you might as well be a horrible warning!
www.meatspin.com
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02-19-2005, 08:59 PM
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Hummer Expert
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Join Date: Mar 2004
Location: Houston, Texas
Posts: 917
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The tow/haul button keeps the transmission from shifting into overdrive. I'm not sure if it really changes the shift points. The programmer not only changes shift points but fuel/air mixture and timing giveing more power to turn those monster tires !!  |
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