+28 can be done, but you will need the rear roll, rear fender pull & the bumper bolt

Your idea of using that +34 is the way to go. Those fit w/out spacers but the spokes are credit card close to the caliper

 

got it. i think +34 will be safer too with the X brakes that are further out. i hope, lol.

 

Didnt know you were doing an X front caliper change?

If those X calipers are more proud than the 9's, pretty sure a spacer will be needed

 

they don't have more poke - they just stick forward more - hence the need for 18's, but also the reason why they have better clearance to spokes (out in the area the spokes are further)

 

i think i can't get the 34s.. so it's gotta be the 28 - can you re-run your graph? i'm curious how much pulling and whatever I may need. I think it shouldn't be too far from what I currently have, which only needed the roll (17x9.5 +32, 255/40-17). I've seen a few people say they've ran the 28s all around fine, but probably they don't autox. i'm also not as low as most of those guys either though, and wouldn't hesitate raising the car for more clearance in the rear

Q

 

Sam
Ran the following: 17x9.5 +32 vs 18x9.5 +28 running a 265/35. This new wheel will have approx .157" more poke but if you run a 265 tire, it appears the tire is what you need to clear

 

thanks joe - what do you mean the tire is what you need to clear?

 

 

ah.. so as long as the green is under the black we're good? and it fits?

ohhh the color is the wheel & the black is the tire right?

 

Yes, the black is representing the tire

 

gotcha. how do you know that's where the fender contact ends up?

 

I just know from experience w/my car & all the things that were done.

You can do these layouts all day long, but unless you know where the fender is, its hard to judge

 

got it. i'm adverse to pulling the fenders so i guess these are out! sad.. and tiring

 

I agree Sam, As Sean noted, you would have needed rear fender work. (rear pull & the bumper bolt relocation). The pull usually leaves a bit of a crease as noted here:

 

18x10 +40? i'm assuming it should be the same outward poke as 18x9.5 + ~34ish, which is pretty darn close to what i need right?

if it's 0.5" wider, both ways, 0.25" outward and inward, is about 6mm. so would be pretty close, if it clears the brakes