This parameter was missing from the Copperhead truck definitions (F150, F250, F350, including Raptor), and is what is used to adjust for the tire size to make the speedometer read correctly. Tomorrow's beta build will have this.
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This parameter was missing from the Copperhead truck definitions (F150, F250, F350, including Raptor), and is what is used to adjust for the tire size to make the speedometer read correctly. Tomorrow's beta build will have this.
:cheers: Thanks Eric! Now I can correct for the stupid tires my partner added to the 2013 tow rig :p
Sounds great, now I can correct the big tires on our Raptor :yay:
Had some reports that the parameters added for the F-150 for tire and axle ratio changes were not taking effect. Added two new switches that need to be set to Enabled, in order for those values to work.
http://www.brooksspeed.com/hptuners/F150Tire.JPG
Hey Eric, a calibration I've been working on doesn't have the switches. BBHS1K5 - 2014 F150. Thanks!
So for clarity's sake when using the final drive parameter and the tire circumference do you disable the VSS? I have done exactly that and corrected the tire circumference on my F150 and it made zero change to the speedometer calibration which is out by close to 5% on my truck even with it having the oem tires on it.
That's exactly what I have done and it did diddly squat. The trucks speedometer is still reading 5% fast as it always has with the corrected rolling circumference for the tires it has on it. To clarify I upped the circumference as the number Ford had provided was too small for the actual tire compared to what Goodyear rates them for. None the less, what I have done made zero change to the speedometer reading.
also if you disable vid I think you lose the 6-5-4-3-2-1 readout....I have the same problem with speedo error I changed my gears to 4.10 with stock tires ..changing the n/v base helped but raises shift point rpm,at least on my f-150.
My gear display works fine. So what I am gathering is we can't fix our speedometer with this software?
Just wanted to post an update. I am in the process of adding a few new parameters that affects the F-150s and the 2015+ Mustangs.
There are parameters that dictate the min/max tire circumference as well as axle ratio. If watch you enter is out side of that range, it will not use it, so you have to adjust the min/max values to make it work. I'll be adding this to all affected definitions over the course of this week.
OK guys, couple of new parameters added.
Below is a screenshot of a Raptor's stock settings. You can see the min and max axle ratio and tire circumference are not far off from the stock value. Move these values out of your way, and the axle ratio and tire circumference changes you make should now take effect.
http://www.brooksspeed.com/hptuners/...s/TireAxle.JPG
Awesome! Now I just need to download the latest and greatest. Thank you!
Eric would you be able to add the option to turning off the tire pressure sensors?
I was able to alter my speedometer calibration successfully today so now I have an accurate reading. I needed to tell this particular truck it has quite a bit smaller tire than the stock value to make it correct but then again right from day one ( I bought it new) it's been 5% out. Thank you!