Reprogramming For Tire Size and Gear Ratios

ExplorerDMB · March 3, 2006

Did you use the process that I described or a different way?

-Drew

Xzibit A · March 3, 2006

i tried a differen way as mentioned above and thn did it your way, it was more accurate doing it your way

jester6 · April 4, 2006

What Im curious of is, the people that have reprogramed using the NGS..

where did you get your hands on one cause ive done some searching & its over $2g's.

ExplorerDMB · April 4, 2006

Hardly anyone owns their own NGS - however, all Ford dealerships should have one or atleast the WDS.

-Drew

jester6 · April 4, 2006

Got ya & you said the dealer charges .7/hr to do it, would I have to figure out the revolutions before I went there or does the dealer figure that our as well?

ExplorerDMB · April 4, 2006

They may charge you extra if they are smart enough to figure it out. I mean it's not a hard concept - but they may not think of it. You could calculate it yourself easily and just hand them the number with the Revolutions Per Mile and you'll be set!

-Drew

'97 V8 · April 4, 2006

ok im curios about one thing. From what you said i have a speedo gear, but in my thread, i cant remeber who said, said that i have the electronic one through the abs. Its a early 97 model with a build date in late 96. I know i have the speedo gear, this is correct right?

ExplorerDMB · April 4, 2006

correct - 98+ use the wheel sensors -- yours however still uses a gear in the transmission.

-Drew

aldive · April 4, 2006

ExplorerDMB said:
correct - 98+ use the wheel sensors -- yours however still uses a gear in the transmission.

-Drew

Actually the speed sensor is combined with the rear axel ABS sensor.

ExplorerDMB · April 4, 2006

zhanx · April 11, 2006

think i am gonna do this soon.

ma96782 · April 24, 2006

Here are some helpful tire and gear calculators:

http://www.4lo.com/4LoCalc.htm

http://4wheelparts.com/4wp/assets/!!!---CHARTS---!!!/chart_gear-ratio.htm

http://www.1010tires.com/TireSizeCalculator.asp?action=submit

and for engines:

http://home.earthlink.net/~jalby/puter.htm

Aloha, Mark

PS........Here is the thread for guys w/ geared (toothed) transmissions:

http://www.explorerforum.com/forums/showthread.php?t=154152

'97 V8 · April 24, 2006

linky no workie....the one for us with a speedo gear in the tranny

ExplorerDMB · April 24, 2006

fixed link

pgdsm · June 28, 2006

so you say it fixed your shifing points? How so? How does it feel off? Doesn't shift point depends on rpm off the tach and not the speedo?

mynameisaric · July 27, 2006

i'm calling around..(well 2 ford stealerships), and they both want to charge me a full hour of labor. the second stealership tried to explain to me all the "complex" calculations they would have to make, so i said i would come in with all the "complex" numbers. over the phone i hear "hey bob!, what if the guy comes in with his own math, how much do we charge for programing?" ..... $97 was the answer to that question. so i guess it doesnt make a difference if i do the math myself or not.

it frustrates me that they want to charge a full hour of labor for a 5 minute job. i mean i wouldnt mind paying 25-30 bucks(.25-.4 hours), but i am NOT going to pay 100 bucks(after tax and all) for some jackass to most likely screw up the calculations and program my truck for a full 33" tire(instead of doing chalk test or checking manufacturers website for actual revs per mile) and spend 5 minutes on my truck. grrr.

too bad autozone doesnt rent the NGS. Do you know anywhere that rents them or wouldnt rape me if i brought my truck in?

jester6 · July 28, 2006

Yea that suxs for sure. I know some garages have a min 1hr labor charge. I would probly do the math myself anyhow.

ExplorerDMB · July 28, 2006

if you lived in VA we could do it. Search for a independent shop - a good one that is.

-Drew

Fredness · October 6, 2006

http://www.explorerforum.com/forums/showpost.php?p=1523656&postcount=33

Take a peek at the post in the EEC-V forum. I used my XCal2 to correct the transmissions RPM/MPH issue and that fixed the shifts, but the speedo was still off. So this was "Phase II" of the speedometer correction project.

Now I have to re-write the flash, but that's fine...

Reprogramming For Tire Size and Gear Ratios

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