I am buying Weld Prostars. They are 15x3.5 Front and 15x8 in Rear. If I buy some Eibach Springs will my car sit ricer low? I'm not even sure I want to lower it. With the smaller rims will that effect the way my car will sit dramatically? Thanks in advance.

 

Well the rim isn't going to raise or lower your car, its the tire that you choose that will raise or lower it. An example, take a set of BFG g-Force's.. and say you went from a 17" rim with a 245/45/17.. you can put a 16" rim on the car with the exact same tire only in a 245/50/16 and be at the exact same ride hight.. both tires work out to be about 25.6" tall. All that changed in that example is the wall hight. So what you need to do is figure out how tall your tires are now and find a tire in a 15" rim that is close to that. To figure that out take the first number / 25.4 to give you the width in inches.. the second number is actually a % of the width giving you the wall hight, so take the width in inches that you just figured out / second number% = wall hight * 2 + rim size = tire hight..

Example: 245/45 R17

245/25.4 = ~9.6" = tire width
9.6*.45 = 4.32 = wall hight
4.32*2+17 = ~25.6 = tire hight

If you decide you want to put springs on it, let me know I have a set for sale.

Craig