Well stock sport are 10" +30. A 9" +15 will extend 26mm and retain the same stock inner clearance. I wouldn't recommend using a spacer if you plan on autocrossing the car.

Thanks for the great input everyone much appreciated.

So if I run 9.5 front and 9.5 rear will the front end up being flush and the rear looking the same as it does stock? If so would I be better off with the +22 up front and the +15 rear?

The +22 is the safer bet.

You can get away with the +15 up front if you're not too low. It will be nice to have +15 all around so you can rotate tires.

Good tip. Thank you!

Same size wheel & "flush-fit"-there is right at a 1" difference in offset.
example (+25 front,0 rear) pending camber.

I am looking to put my old set of Vossen CV5's on my 15 Nismo in the spring. They are 20x9+35 245/35 and 20x10.5+45 275/30.

I was wondering what a good size spacer to run would be?

I dont want it too aggressive because the new Nismo has fender flares that stick in the wheel well more than the fender does.

I am lowered on coilovers, from the center of the fender to the ground is 26.25" in the front and 26.5" in the rear.

Thanks

Pending on your camber setting; 10,15mm front & 25,30mm rear/ also a 285/30 would even up the tire height.


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Easiest way is to mount them up & measure


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Camber is within factory spec, give or take ~.3

I would like to change the tire but they still have alot of tread left so I plan on using those. They were off of my G37, I probably wont run them for long but I want to go to a couple of meets/shows in the spring and wanted to have aftermarket wheels.

I would have to change my wheel studs in the front if i ran 10mm correct? or even 15mm for that matter. Rear i believe would be fine with bolt ons

If I were you, I'd run a 15mm spacer up front to give you an end offset of +20 and a 30mm on the rear for an end offset of +15. You shouldn't have any rubbing issues with this setup.

Question about spacers
 

Hey everyone! This is my first post on the forum, so forgive me if I sound like an idiot...
I have a Touring without the sport package, and I'm wondering what size wheel spacers I should get.
I have Kumho Ecsta Platinum tires and 18 inch TSW Bathurst wheels, and I hate how the rear wheels/tires sit inside the wheel well (the rear wheels are more concave than fronts, so the way they sit inside is more noticeable than stock). I had the rims installed in July of 2015, and I've been looking on the forums to find some info, but for the most part I haven't found any answers pertaining to my situation. Also, I am not planning on lowering my Z any, and it is still at the stock ride height from when I got it in 2014.
My preference would be that tires either be flush with the wheel well or for them to stick out slightly farther.
Any advice would be greatly appreciated, thanks.

In the rear, my current tsw's are a +27mm with a 15mm spacer. will i have any issues rubbing a 305 in the rear?

For everyone asking how big of a spacer to get... measure it first. This will get you in the ball park of what you need.

Grab a long straight edge (piece of wood, even a cardboard box) and a tape measure/ruler. Hold the straight edge against the fender and straight down. Then measure the distance between the wheel/tire and the straight edge. I always measure from whatever point sticks out furthest. In this case, the rim since the tires are stretched.

http://i2.photobucket.com/albums/y47...0/IMG_7777.jpg

So as you can see, if I want this rim to be in line with the fender, I need a 10mm spacer.

We need to know the width along with the offset.

Offset was mentioned at a +27mm. width is 10.5"

+15mm spacer

i'm thinking it will be very close with a 305