another way to calculate it is to use the offset calculator

stock size: 7 width and +48 offset

http://www.1010tires.com/Tools/Wheel-Offset-Calculator

my current setup

+94 in the front
+117 in the rear

-2 camber all around. it sits flush, it doesn't poke, its a functional setup. i track it often.

up to +80 front and +100 rear would make a nice setup.
anything pass +95f +120r is gonna poke and youre gonna get that hellaflush look or run massive amounts of negative camber.

rocket bunny wheel specs
 

Hey did you guys use spacers at all? And did you have any issues with full wheel lock on the front wheels>

BTW, I love this car!

My rears came out to -35 EO
and My fronts are -5 E0

I might change up te front, as of right now i am waiting on tires to show up to check the clearance.

15mm spacer up front. no issue with full lock

-Ryan

I'm surprised nobody is running super wide wheels with these kits. I'm on a 9/10 setup under stock fenders, and based off the added width of the kit you could easily go another 3" wider. I'd love to see someone do one of these with an 11" front and 12" or larger rear and some 3xx width tires... now THAT would be wild. :P

What's the point? I'm running 265/35/18 all the way around on stock fenders. If you have a RB kit, why wouldn't you go for 315 or 325 out in the rear?

Wider track should provide more grip in theory. Unless you're putting down a ton of power I really don't think you'd ever be able to take advantage of it.

Quick thinking, here:
If you're not putting down a massive amount of power, you probably don't want a heavy tire putting more rotational mass in the name of grip.

Has anyone have an idea about using a 265/35 tire on 18x10.5 wheels, iv been told that there might be an issue with rubbing.

in the rear? Rear there is a part of the over fender that tends to rub but i trimmed it down a bit and its not really a problem anymore.

Im running 18x10.5 rear with 275/35 right now

Im going 18x10.5 all around and im not to into the stretched tire look, so i was wondering if 265/35 would be an issue in the front.

Thinkin about going with a set of 18x11 +20 square. Would these fit the rocketbunny fenders? or would I have turning radius problems up front?

So if I want to run 17s or 18s I should go 18x9.5 +0 or -10 & 18x10.5 -30 to fit? I don't want to be slammed but no wheel gap.. What are some cheap wheels that will fit. BBS style

Look at those specs. Nothing will be "cheap".
If you want to spend less money, used wheels would be your best bet.

Edit: I've seen your build. Why would you want to put cheap wheels on that nice car?