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I dont know where I should post this so I'll just put it here. Bought my truck a couple months ago, it's got about a 6" lift with 35" tires & has a superlift speed sensor calibrator wired in under the dash. Does anybody know anything about these or have any experience with them? My speedo is still 5 miles off & flutters around at the low speeds so not sure it's even working. I thought I remember from my last truck that you can adjust the speedo in these trucks using autoenginuity so wondering if I should just take it out
FORScan will change your tire size as well. There is a how to and video in the 7.3L PSD Tech Folder
Tagged for this. I recently downloaded FORScan and was hoping to try the speedometer adjustment. I wasn't aware of the video in the tech folder (and other videos I was watching were having you calculate a code and put it in a different place). I'm trying to figure out the revolutions per mile (computer way and not actual driving and measuring per mile way). In the video his was set to 649 for 265 tires, but what I'm finding online (many sites) doesn't match that number. Discount Tire has a calculator that gives Rev/Mile, but again the numbers don't match (at least what he had).
Tagged for this. I recently downloaded FORScan and was hoping to try the speedometer adjustment. I wasn't aware of the video in the tech folder (and other videos I was watching were having you calculate a code and put it in a different place). I'm trying to figure out the revolutions per mile (computer way and not actual driving and measuring per mile way). In the video his was set to 649 for 265 tires, but what I'm finding online (many sites) doesn't match that number. Discount Tire has a calculator that gives Rev/Mile, but again the numbers don't match (at least what he had).
@sjbj , I have failed you in referencing the 7.3L PSD Tech Folder!
I thought for certain that the thread by @akcooper9 with written instructions was in the Tech Folder as well, but it was not. I have since edited the Tech Folder contents to reflect written instructions as well, which I have also pasted below...
@sjbj , I have failed you in referencing the 7.3L PSD Tech Folder!
I thought for certain that the thread by @akcooper9 with written instructions was in the Tech Folder as well, but it was not. I have since edited the Tech Folder contents to reflect written instructions as well, which I have also pasted below...
35 * π = 109.95" per revolution.
109.95" / 12 = 9.1625 feet per revolution.
5,280 / 9.1625 = 576.26 revs per mile.
This is nothing more than a reference point to get you "on the paper", to use the target shooting vernacular. GPS on the phone with Google Maps, or using highway mileage signs and the ODO will polish the number - because no amount of math can accurately predict real-world performance on a 20-year-old vehicle with mods.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
