I have 205/40/17 tires and they are eaten on the side facing towards the engine. and I can see that it was rubbing against the inner fender.
The tires are worn differently from a alignment problem. It's the sidewall part that makes contact with the inner fender that gets worn badly.
Now I took the wheels off and put back the stock wheels on the front and it seems to be ok I think. The car doesn't feel like it needs an allignment too now with the stock tires because the steering wheel is not pulling to one side when driving.
I'm not sure what the problem is. But if it's too low then I might need to replace the old OEM shocks if that raises the hight a bit.
Appreciate any help/advice

 

Do you know the measurments of the aftermarket wheels? 17x? offset?

 

its the 40 series if you change to a 45 they are a little taller but not as wide and that is what is causing that whatch the height so it don't rub the fenders, i had the same problem and i changed to the 45 series and now no problems. just a suggestion

 

2 Possibilities:

1) You did drop your car too low. I has been my experience that if you drop your car more than 2 inches beyond stock settings, you can run into camber problems. Fix: Get an adjustable camber kit and then get the thing aligned.

2) Your rims are too wide.
a) They could be too wide ie. more than 7/7.5 inches
b) And lets see if I can word this right...they have too much offset.
c) A combination of a) and b)
Fix: Ummm...well...new rims that fit?

 

I am pretty sure the series has no effect in tire width. A 205 is a 205 no matter what. The width of a tire does however effect the hight of the side wall. The series is the percentage of the width for side wall heigth.

 

camber kits are always nice

 

Yeah, I think it could be the offset too.
This is what's written on the wheel.

DL-38
17 x 7 JJ
ET: 42
690 Kg max load
wishbone

but I don't know which one stands for the offset, and what the max offset is for my car with a Tein Stech drop

 

stick some 195/40-45R17's on there and u should be good to go. 205's are to wide, ill hav rubbing issues and im not slammed and only have 15's.

 

The 42mm is the offset.