stock 15's to 18's

[2000LWAGON]

so i just got rota rims that are 18x8. so its a big upgrade from the stock 15's that are currently on my car. is there a way to re-calibrate my speedometer so it says the correct speed due to the bigger rims. in addition to that, how do i make it so my car is putting the right amount of miles on rather than more since there are bigger rims? does it do it on its own? is there something i need to change? also, do i need a camber kit for these? if so, who makes a good one and where can i get it.

[Reason]

Get the right size tire to keep it close to stock diameter.
Use this calculator to help you find the right size tire.

http://www.miata.net/garage/tirecalc.html

I have a better one but can't find it.

[2000LWAGON]

thanks, yeah im going to a 225 40 18 so it'll be exactly the same.

[omahasubaru]

taller tire = less miles put on the car dude.


As for a camber kit... It all depends on how low you are, what your current rear camber is, and if they'll clear or not.

There is no 'one size fits all' solution to wheels/tires when everyone has different suspension setups and alignments.