[BadBRZ]

Originally Posted by Draco-REX

From my experience with about -2.3 degrees camber (I wouldn't go much more than this, and I may go with less now that I can.)

A 265/35 on a 18x9.5+38 rubs the fender/bumper joint where that plastic fastener is.

Move that to a +44 offset and everything clears, but the bracket that kinda keeps the e-brake cable along the trailing arm is less that a finger-width from the wheel.

Seeing that, a 285/35-18 on a 18x10+45 will need some slight modifications.

First, that bracket will have to be bent further in. Wheel will be 7mm closer than my current one, which will hit those brackets. Not a big deal, they bend relatively easily. The tire will clear inside fine.

Outside, the wheel is fine, but the tire will be 3mm further out than the 265 at +38. That will mean more rubbing at that joint. I haven't looked too closely at how important that fastener is. If it isn't too important, you could dremel it and some of the bumper lip below it. If it is, you may need to do a slight pull to that area of the fender.

Now, less negative camber will mean more work on the outside.

It looks like to me that 285/35-18s are possible. But I think you could go with 275s for a lot less hassle with no appreciable loss of rear traction. Hell, if you're focused more on drag racing than AutoX/Trackdays you could probably do just as well with 265 drag radials and a lot less negative camber than you would with a wider tire and more.

285/30r-18 not 285/35r-18 thats alot different on diameter