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calibrating bigger tires

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Old 01-31-2009, 11:47 PM
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Default calibrating bigger tires

what can i do about this since the dealership cant? something thats not gonna break me just to get my speedo and odometer to read right ya know

thanks
 
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Old 02-01-2009, 07:16 AM
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Yah, good question, I've been wondering the same thing.
 
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Old 02-01-2009, 04:38 PM
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can you not calibrate it with your attitude controller? I know the Smarty allows for that
 
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Old 02-01-2009, 09:13 PM
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Through 2005 or 2006, a dealer could calibrate by revs per mile. After that a dealer can only use certain tire size. To do it, you will need an after,arket programmer with those capibilities...
 
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Old 02-01-2009, 10:26 PM
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Your Edge can calibrate for bigger tires. Although itll only show the correct speed on your Attitude monitor.

The numbers on this screen represent the circumference of your tire in mm. Adjust the
tire size by pressing the up/down arrow keys. The table below will help you determine
your wheel circumference by matching your tire size with the sizes listed. For example,
if your tire size is 285/ 65/ 18R, the value (circumference) you enter into the Attitude is
2599.0. Another alternative is to measure your tire’s circumference by marking your tire
and rolling it one complete revolution and measuring the distance then multiply the
inches by 25.4 (i.e., 91.3 inches x 25.4 = 2319.0 mm). The tire size chart is on the
following page.

Width Ratio
Rim Circumference
215 75 16 2288.8 mm (select 2300)
245 75 16 2430.0 mm
265 75 16 2524.2 mm
285 75 16 2618.4 mm
295 75 16 2665.5 mm
305 75 16 2712.6 mm
315 75 16 2759.7 mm
325 75 16 2806.8 mm
265 70 17 2520.8 mm
285 75 17 2698.2 mm
315 75 17 2839.5 mm
285 65 18 2599.0 mm
285 60 18 2509.5 mm
325 60 18 2660.2 mm
265 70 16 2441.0 mm
275 70 16 2485.0 mm
305 70 16 2616.9 mm
Tire Size
33 2631.9 mm
35 2791.5 mm
37 2951.0 mm
38 3030.7 mm
 
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Old 02-01-2009, 10:52 PM
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yeah i know i can do it on the edge and i have, but i want it to show up on the gagues and want my odometer to be right guess ill just have to get a seperate programmer and get it done that way
 
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Old 02-02-2009, 08:03 PM
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You'd think one of the bigger tire places had a programmer for just this sort of thing. No luck with that?
 
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Old 02-03-2009, 12:15 AM
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yeah you would think that, or that they would offer it to ya, i was going to ask when i took my truck in for a 'check up" but they were kinda packed and i was in a hurry, i mean they have'em but its like 220 bucks ya know
 



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