18's on a 370z

TN.Z

That offset front wheel will extend out 27mm more than base wheels and the rear wheels at +15 would extend outwards 19 mm more than base rear wheels. You might have a tiny amount of poke up front but it should be pretty flush. The rears shouldn't poke at all.

Used the offset calculator at 1010 tires to figure this out. If you have base wheels just take a tape measure out and see where your wheels would be if they stuck out an extra 27mm and do the same for the rear. If you have a sport then ignore this post.

Memphis370Z

Beautiful NISMO, EzDz. Really appreciate you posting that pic, as it really shows how your wheels are set up. I've considered 19s, but I'm good with the 18s and, in general, the tires are less expensive. Thanks for the feedback and information!

I'll be stepping up in tire size from 225s to 245s in the front and from 245s to 275s in the back. I'm hoping that the 275s are wide enough for the 10.5 rear wheels, as I don't want the tire stretched. I've looked at a few tire calculators and think it will work pretty well, but thanks for your post and for the insight. Much appreciated.

Thanks, TN.Z. I'm running base 18" wheels, so the numbers you shared are extremely helpful in my decision. I just measured and, if a +35 offset in the front on a 9.5" wheel sticks out an extra 27mm, this will look great. The rears will look great with an extra 19mm too. From one Tennessean to another, thanks!