OEM Nismo wheels / I'm stupid and need a hand.
 

So after searching through the forum, countless videos watched on YouTube, and local shops telling me "the right way" to do things I'd like to ask you guys for some help.

I'm currently running OEM 2012 Nismo wheels with 25mm spacer in the front and a 20mm spacer in the rear. I would like to purchase wheels in the future but I'd like to not run spacers at all.

From what I understand, the stock wheels' offsets are +47 and +30 front and rear. From this I'm assuming with my current setup I'm essentially at +72 and +50. Now this just SOUNDS wrong to me so please fill in the gaps for me.

I'd like to run as wide a wheel as possible but I'd like to keep the outer face of the new wheel as close to where the outer face sits on my current setup. I'm not sure how width affects the wheel's offset or how the two mingle but any help would be awesome. Thanks in advance!

You would actually be +22 and +10

How does that work? Do the spacers take away from the offset?

Edit- so I think I understand better now. Since I'm adding a spacer it brings the center mounting face (hub?) closer to the center of the wheel, therefore subtracting the offset from the OEM. Correct?

On your set up the spacer brings you closer to a 0 offset

Okay I think I get it now. Thanks man.

So if I were to go larger to let's say an 11.5" wheel in the rear and a 10" in the front, how does that affect the proper offset? Or should I stick with something a little less meaty?

It's going to be a preference issue. Wider wheels would require a different offset to achieve the desired look. It will also depend on ride height.

Right, of course. But how do I determine the proper offset for the width? That's pure fuggin magic to me. As far as ride height goes, I am already planning on adjusting ride height according to the wheels to achieve the maximum tire width without rubbing while at full compression. Form follows function kind of deal

I am not an expert. There is an offset calculator that can be used. It's in a few of these threads. Sorry I don't have a link. I can help you with the basics, but anything else would just be a guess on my part.

There a numerous websites/youtube videos out there

just search for what is wheel offset

offset is distance of the mounting surface of the wheel from the hub of the car

higher offset indicates farther distance

lower offset indicates it'll be closer

the wider the wheel the closer the outside edge of the wheel will be to the fender


instead of doing math, you could just browse any of the half dozen wheel fitment pages and copy someone's set up that you like, that is the easiest way

http://www.willtheyfit.com/#isPage=1

Plug in the OEM stats then the new stats...

For 10" up front I'd start at about +28
For 11.5" rear like +17

As always, awesome support guys. Thanks a ton. I'm going to keep doing my homework. Thanks again guys

IIRC the non-Nismo offsets for the 19" sport Rays are 47 mm front and 30 mm rear. However, the offsets for the Nismo OEM wheels are 40 mm front and 23 mm rear. You should confirm since it will affect your calculations.

This is correct. :tup:

Would this make the Nismo have a wider track width than base/sport?

By wider track I assume you mean the width of the rims?

If so yes.

Sport rims: Front - 9" Rear - 10"

Nismo rims: Front - 9.5" Rear 10.5"

And if you mean, the actual "track" of the wheel base, no they are the same for all 370Z models. But like LMBmikeZ mentioned, the wheels are wider than the other non Nismo wheels.