I have 215/45/17's, am I going slower or faster than my spedometer say's?
I saw something about if I'm doing 60 I'm actually going 62. Also am I putting more mileage or less using tire size larger than stock.

Comments Please
Thanks
Bob

 

larger diameter...less mileage...u actually going faster than the speedometer says

 

Check out this place: http://www.saturnperformance.com/tech/tiresize/

Just input the stock tire size and then the size you have now and it'll show the percentage of size difference and everything. It's a handy tool.

According to the link above, you're going 3.7% faster with that setup. So if you're going 60 on your speedometer, then you're actually going 62.2 mph. Hope this helps!

 

you're speedometer says you went less miles than you actually did. so it will look like your MPGs are worse, but it will also say that you have less miles on your odometer than you really do. just do the math and you can see the actual numbers.

 

swweeeet tool, i jus input mine, with 215 35 18 tires, its almost exactly the same as stock!
did you just call that guy a tool?

 

That is a good tool. Im glad you posted that so now I will know to make sure I dont get no tickets I already be pushing a few miles over the speed limit when im trying to cruiz Good Post :D

 

Hey Everyone. Thanks for taking the time. I thought it was recording more miles not less. That works for me.

 

No prob! Actually if I remember correctly I got the link from yanges. hehe So props to him fo'da'link!