I just tried 295/35r18 , they do not fit. I'm using up all the room inside the wheel well, and still need 1/2" past the limit of the rear portion of the rear fender.
295/30 fits, I ran it all year last year. I took my Apex 18x9.5et35 and widened it to 10.5 to make it happen. The offset was perfect for the outer-spacing. 285 may be possible but you'll need to do some good amount of rolling unless you move the wheel further into the wheel well. You'll need all the travel you can get especially on those high speed turns at NJMP
Wheels will tuck in!
I can show you my work if you're in the area some day or at an event!