Tire Size Computer Correction

[Zippy2274]

Dose any one know the best way to change the on board computer to compensate for a taller tire (265-75-16 vs. stock 245-75-16)?

[Jacqson]

Dose any one know the best way to change the on board computer to compensate for a taller tire (265-75-16 vs. stock 245-75-16)?

 

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You do not need to adjust the computer to compensate for that little of a change. I changed my 245's to 265's just like you and was told by the dealer that a computer adjustment is not neccessary because it it not more than a 7% increase in tire size. You shouldn't have any problems, but if you do, the dealer can adjust the computer for you.

[99-2door]

When your speedo reads 60 mph you will be running 62.4.

reads 80 mph you will be running 83.1

 

Not a big problem.....

 

If you do decide to have it corrected, just get a tune from Jesse Bubb. Less than $100 and you get a tune as well.

[DesertRace21]

While your reading this math whiz.. I have a 2000 Z-71.. 4.56 gears, 315/75/16 tires.. do me some math like that.. im just curious....

[99-2door]

What do you want to know?

If speedo difference, I need to know your original ratio and tire size.