rominl

iTrader: (4)

so i am still a bit confused, you have 11 now or 10.5? if 10.5, then it's weird, coz' that's pretty high offset already. if i have to think of a reason then it must be the 305 tires ,which is very wide for the 10.5 wheel

now if you have 11 wheel, maybe that will explain the slight rubbing. but still i think the offset is good

if you have 10 +23, i don't think any fender work is needed. quite a few people are running 10 +23 in the back without any work done. but that's on 275. if you get 285, again, you might run into small problems

there isn't much fender work you can done to the rear. the fender lining runs together with the fender lip so you can't relaly shave the fender, thus making it hard. it's very different from the gs and the is.

rominl

iTrader: (4)

well i have no problem sharing with people about what i have studied so far, if anyone wants i can talk about it. i just don't want to mention about it unless people ask, sometimes people don't really like my explanations from what i see.

if everything is proven, maybe i will add it to my fitment guide as well on top of the gs and the is

hageuzai

20x11.0 ET40 with 305/25-20 is what I have (the pic that I posted)
20x10.0 ET23 with 285/25-20 is what I am going to have.
Should be on by the end of the month.

I believe there are no 275/25-20 tires available yet, only 275/30-20.
Yes I know many people use 245/35 and 275/30 but that changes the overall diameter
from the factory size and I don't want to do that.
By using 285/25 I can keep the size closest to stock.

rominl

iTrader: (4)

ah gotcha, sorry i didn't pay attention to the profile. with the 285/25/20 you will be very close to spec definitely. but the extra width (285 vs 275) will put you a bit closer to the fender, maybe that's why you might need some fender work.

11 +40 is actually 5mm more inboard than the 10+23 from the fender, if you are rubbing i am pretty sure it's due to the wide tires huh? i guess if you had gone with 295 it should be ok

very nice setup there for sure

hageuzai

Yes indeed, but another reason why I am rubbing is I guess the tire design?
I'm not skilled enough to explain this in english but suppose there is an exact
same size from Continental and some other tire manufacture (for example 245/35-20)
Compare the two and the Continental will have a less slanted edge in most cases.

This makes it more risky when you are dealing with a very aggressive setup
plus the design of the tire wall makes the tire look thicker, which eventually make
the wheel look smaller

rominl

iTrader: (4)

yes you are right on with the tire shape, they make HUGE difference. the continental is very sq, where as some other tires like the so3, they are veyr round. so you are right that when you are getting to the "edge" you gotta be careful on the offset but also the tire choice

i got your pm, i will reply it tonight when i get home. there are a lot more for discussions