I will be running a different set of wheels soon, and today I realized that I will be going down a tires size. My car is already slammed, and I scrape if I'm not careful. I didnt know if going from the stock size to a 40 profile front and a 35 profile rear would make the car alot lower?

If it does make a difference I want to adjust the coils now before I put the wheels on.

-Tom

 

what size rim are they?

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

this should help you.

245/40 275/35=19's is almost oem specs

245/35 275/30=20's would give you the same speedometer readings as oem specs

hope that helps.

 

Looks like it will only lower the car .1 inches more, should be okay.