Calibration for Speedometer, Odometer and MPG after larger tire size upgrade?

[kobe24runner]

Just put on 285 70r17 C Load ko3s and Enkei Trail Boss wheels +20offset. Some pictures included fully turned, maybe about 1.5 inch of space from rub.

Was wondering if anyone has done the overall calibration to include the increase in tire size? and How?

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[127.0.0.1]

scangauge
and program an offset

 

[Redleg]

I went with the same set-up as yours and after looking at the difference in overall diameter didn't think it was worth the effort. Have you used tiresize.com/calculator before?

 

[kobe24runner]

I went with the same set-up as yours and after looking at the difference in overall diameter didn't think it was worth the effort. Have you used tiresize.com/calculator before?

Unfortunately, I am a brokie and got the SR5 which came with 245/70r17

 

[Redleg]

Unfortunately, I am a brokie and got the SR5 which came with 245/70r17

That's enough of a difference I'd recommend making the effort. I failed to do it quick enough on my last Jeep and regretted it when I got the speeding ticket. New to the 4Runner family, but with Jeeps it was easiest to take it to a dealer, pay the $135 license fee and them recalibrate everything onboard...not sure if Toyota dealers do that.

 

[127.0.0.1]

fwiw
the OG calculator

https://www.tacomaworld.com/tirecalc

 

[HotWheels4]

I was wondering if there was a way to do it also, my brand new offroad premium under reports by 2mph which will throw off distance and mgp calculations on factory shoes.

 

[kobe24runner]

That's enough of a difference I'd recommend making the effort. I failed to do it quick enough on my last Jeep and regretted it when I got the speeding ticket. New to the 4Runner family, but with Jeeps it was easiest to take it to a dealer, pay the $135 license fee and them recalibrate everything onboard...not sure if Toyota dealers do that.

I hadn’t thought about this thanks for the idea. I was thinking more aftermarket items to do it myself but this works

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