Tech2 tire size calibration

[justdennis]

Has anyone used the Tech2 to calibrate the speedometer when switching to different size tires? It's may not be necessary since I am only changing the diameter a very small amount but I would still like to see if it is possible. I have yet to find a way to do this but I am still learning my way around the Tech2. It may require the use of TIS2000 and I don't speak that language yet.
Thanks,
Dennis

 

[richardyoo]

This cannot be done with a Tech2 - but can be done with aftermarket tuner systems like EFIlive and HPTuners. The options to adjust are available with both.

With that said - I suspect its not worth the effort since the tire diameter likely isn't that much different for whatever it is you're swapping on it. Typically its more of a problem with trucks when they drastically change the tire sizes from stock.

 

[justdennis]

I suspected as much. You're right about not needing to change it, after doing the calculation I found the difference is negligible so it really isn't necessary.
Thank you