Stock Mojave tire size in the Gladiator computer?

[kcmudbug]

I picked up a set of Mojave take-offs to put on my sport. Mojave owners - do any of you know what the stock tire size was set to in the computer? Thanks!

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[ecidiego]

I picked up a set of Mojave take-offs to put on my sport. Mojave owners - do any of you know what the stock tire size was set to in the computer? Thanks!

From my Mojave with ATs. MTs might be a different setting. That's only 31.4". Nice "33s" Jeep! Lol. "Dynamic" might account for the the lower calculated diameter there. When you input a tire size in the scan apps, they convert that to this Dynamic # in the BCM. The Jeep computer does not reference tire size in inches.

 

[PuddleJumper]

I picked up a set of Mojave take-offs to put on my sport. Mojave owners - do any of you know what the stock tire size was set to in the computer? Thanks!

jeep had it entered as 32.75. I actually measured my wildpeaks and they are a hair under 32. i have them set at 32.2 and they are spot on calibration wise. 70 is 70. not 71 or 72. 70.

 

[kcmudbug]

From my Mojave with ATs. MTs might be a different setting. That's only 31.4". Nice "33s" Jeep! Lol.

Thanks! That's exactly why I was asking. The ones I picked up are the ATs as well.

 

[ecidiego]

Thanks! That's exactly why I was asking. The ones I picked up are the ATs as well.

Make sure the scan app you use allows for inputting in mm for that setting. Don't convert it to inches. AlfaOBD allows this. Jscan might try and do the "user friendly" inches setting which it then tables to the mm's for Dynamic which won't line up the same as you would do with circle calculation.

 

[KevinC]

My 2023 Mojave stock with A/T tires was also entered at 32.75 from the factory. I measured them before changing tires. They were not 32.75, more like 32. But my speedo was spot on from the factory so I'm sure they have some algorithm in the computer we cannot see.

 

[ecidiego]

My 2023 Mojave stock with A/T tires was also entered at 32.75 from the factory. I measured them before changing tires. They were not 32.75, more like 32. But my speedo was spot on from the factory so I'm sure they have some algorithm in the computer we cannot see.

It's that "Dynamic circumference" setting. The BCM has no entry or setting for tire diameter in inches. Some apps just calculate it from the Dynamic setting and report it to you, and then when you set it in "inches" in the app, the app calculates the circumference, does some calculation to come to that proper Dynamic #, and sends that to the BCM behind the scenes.

With AlfaOBD, when I send the "circumference in mm", a different # results in VehConfig 4 - the "dynamic circumference" setting.

 

[kcmudbug]

It's that "Dynamic circumference" setting. The BCM has no entry or setting for tire diameter in inches. Some apps just calculate it from the Dynamic setting and report it to you, and then when you set it in "inches" in the app, the app calculates the circumference, does some calculation to come to that proper Dynamic #, and sends that to the BCM behind the scenes.

With AlfaOBD, when I send the "circumference in mm", a different # results in VehConfig 4 - the "dynamic circumference" setting.

I have a tazer - I think that only has inches.

 

[ecidiego]

I have a tazer - I think that only has inches.

Yeah it will just do the work for you and send whatever is calculated.

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