18x11 wheel fitment guide!
 

Hey guys,

Thanks in advanced for any help with this.
Currently I'm running a 17x9 245/40 square setup on my car. Last night I found out that one of my wheels is cracked so I'm looking into the possibility of making an excuse to go ahead and upgrade to 18x11's like I've been wanting to.
I'm a huge fan of the Work S13P wheels and may try to go that route. But in general what is the best setup for me to run in order to achieve a square 285 or 295 setup? I know I will not be able to fit this in the front stock. I'm going to be running JsRacing front Fenders.
I have searched for other threads but they all seem to be talking about people trying to fit them with stock Fenders. That is not at all what I'm trying to do.
As a matter of fact this is almost the exact setup that I'm looking to run.
https://cimg1.ibsrv.net/gimg/www.s2k...fba7bb062b.jpg
https://cimg3.ibsrv.net/gimg/www.s2k...341df24116.jpg

What's the best offset for this type of setup with 25mm front and rear over fenders just like this?

Nevermind! I ultimately came across this on the web!
It's an Excel sheet that allows you to put in how wide fenders you'll be running on your car and will tell you what offset you need to run in order to make the wheels fit.
How accurate do you guys think this is? From what I'm seeing for an 18x11 wheel I can run a +29 offset with JsRacing 35mm front fenders. And in the rear I could run a -24 offset with 75 mm Circuit Garage fenders. May need to reconsider those CG fenders.

This is Junky's expertise. He would be the best person since he has done this himself.

MY 18X11 + 55's are really close to fitting under stock fenders.

If I were you I'd look into what rear fender would allow you to run the 18x11 +29 (or whatever you do in the front) all around. Just for rotation purposes, it is nice to be able to rotate tires.

11j +29 seems doableish with J's fenders & enough camber. My 17x9.5 +43 w/ 255/40 kinda sort of fit, but I don't run much camber up front at all and 18x11 +29 is about 33 mm more aggressive (my OEM fenders are probably pulled about 2-4mm too).

That's what I'm looking to run is a full square setup. The best I've found so far is +22 offset but that's also on a 10.5 not actually an 11.. So that may fit nicely. I'm really wanting to run a 285 size tire with no more than -2 camber as I want as much grip as possible from the tires. Looking for function over form.

https://www.apexraceparts.com/wheels...ang-wheel.html

18x11 +52

These will fit for sure with milder over fenders and the J's racing front, or any sort of aftermarket front fender. Should also clear a BBK. The brand is very popular with the BMW community and is very commonly run on track builds of E36 and E46 m3s.

I doubt 11" +52 would clear inner suspension in front.

IMO something like 11" +40 would be ideal if you want same offset front/rear and ability to rotate. It would take a more aggressive over fender in front compared to rear though, probably 35/40mm front and 25mm rear. My 11" +64 with 285/30 fits stock body (rear) with only a roll. CCW is a good route if you want to really fine tune widths/offsets.

If you want function over form you'd do research on what track guys are running rather than just trying to fit the biggest wheels.

From what I am able to find the Voltex Racing S2000 was running 18x10 +35 all the way around on their track S2000. This was before they changed their wheels. I believe they're now running a 18x11 but I haven't been able to confirm if that's the case.
They were also running 285/35/18's all the way around as well.