Calibrating Speedometer for Bigger Tire Size using Forscan (2003 - 2007 Ford Superduty F250 F350)
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- เผยแพร่เมื่อ 9 ก.ย. 2024
- I created this video because I couldn't find a lot of information about calibrating the speedometer on my truck. My truck is a 2006 Ford F250. The tire size I have is 35x12.5x18. I found some of the information on different forums and some of it I figured out by playing around with different settings. I hope this helps someone. It has been a lot better having an accurate speedometer.
Esculent. Thank you.
whats the hex value for rev/mile 592?
got it calculated! its 20992 decimal and 5200 hex 35" x 12.8 22" rim website says 594 rev/mile. Im running a mickey Thompson baja boss a/t tire 325x50 22 if that helps anyone. this video helped me figure out some tire calibrations on my truck thanks!
Let me know if that works. The lowest revs per mile the module on my truck allowed was 600. Thanks for watching. Please subscribe to support the channel.
does this work for a 2009 f350? and I have 37s
@@AndrewMcSpadden Sorry, but I'm not sure about that.
I did everything you described in the video. Everything saved just like the video but nothing changed at the speedometer.
Did you go back in the module and check that the changes were saved? What revs per mile are you trying to change to?
@@allensshenanigans348 yes. That’s the confusing part. 607 rpm, 5F00
@@chrisn.4136 Make sure you change the numbers in both of the spots I mentioned in the video.
@@allensshenanigans348 I did. I followed your video to the T. Can’t figure out why it had no effect on the speedo. 607 shows updated in both modules. This truck is been a lemon from the day I bought it so nothing really surprises me anymore.
@@chrisn.4136 Just keep playing with it, you'll figure it out. I would check the module to see what differential is in it and make sure it matches the gear ratio of the rear end. Then keep changing the revs until you see a change . Thanks for watching! Please support the channel by subscribing!
I installed a larger fuel tank in my 2006 f250 6.0. Went from 30 gal to 51 gal. I get p0460 code after a long drive. My understanding is the computer needs to know I have more fuel or travel distance. Any idea how to use forscan to adjust this setting. Thank you
I don't think Forscan is capable of that. I know there are a few things like power balance that were never developed for the 6.0 in Forscan. Thanks for watching. Please support the channel by subscribing.
I know for newer trucks FORscan can calibrate larger fuel tank sizes. Hard to find info on whether it can on a 6.0L though
Would this work for a 2005 F150 STX?
Yes
What is the formula to convert revs/mile to Decimal?
I don't know if there is a formula to convert it directly. I just found a pattern after plugging in different revs.
Thx for this. How is your speedometer running 70MPH using 606?
@OverlandNV It is matched up really close to the GPS at all speeds. Thanks for watching!
@@allensshenanigans348 Awesome. I have 35.1" so I suspect thats right were I wanna be.
Hello! Can someone please help me getting the HEX number for my 37 inch tires?
I believe the programming only allows as low as 600 revs per mile, which converts to hex of 5800. I am running 35 inch tires and I am using 606 revs per mile. My speedometer is right on with my GPS on my phone. Save your original settings before you change anything. Follow the directions in the video, but try 5800. Let me know how it works for you.
@@allensshenanigans348 5800 worked!!! I only see a little difference past 65 mph. It’s great now! THANKS for the video!
Link to your spreadsheet?
Sorry I don't have it available right now.
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needs editing, way too long just get to the point of the title
Thanks for your critique. I try to leave it up to the audience to be able to skip through steps if necessary. Some people are new to this and need more detailed steps. Please support the channel by subscribing!
Hey whats the Hex for rev/mile 560 i have 37x12.50R20
I believe the abs module doesn't recognize anything below 600. Thanks for watching. Please support the channel by subscribing.
I have 35’s and it will not allow me to put below 600. So I just set it to 600 and it’s closer than it was.