I'm going to be buying rims soon, and I'm trying to figure out what size 19s to go with.. then there's the question of the staggered setup and whether or not it causes VDC issues.. anyone care to chime in?

 

You can stagger without any problems.

Ideal set up:

19x8.5 +35 to +38 offset w/ 245/35/19
19x9.5 +45 offset w/ 275/30/19

 

Chico, this may sound like a real ignorant question, but what is the advantage to a staggered setup??

 

I can confirm what chico said. I run the same tires and have had no problems. as for the staggered fitment, I think it's for looks more than anything but it is a nice to have that traction of the fat meat rear tire on launch.

 

Better looks...the wider wheel in the rear will yield a bigger lip and more agressive stance.
Traction....the bigger and wider the contact patch (tire) the better traction.

Disadvantage....you can't rotate tires.

 

Performance wise, not much. G35s don't have enough power to necessitate the need for a staggered setup. Most high end performance cars with lots of power run staggered setups to reduce snap oversteer. In a lower powered car like a G35, snap oversteer isn't much of an issue. You'll also notice most cars with factory staggered setups place more wheel and tire towards the inside of the car, not towards the fender. Most guys with G/Zs that go with a staggered setups try and push the wheel further out from the hub so that the rim has a huge lip. It's all for style because in actuality, the huge stagger, the change in offset, and lack of power will create a ton more understeer. Running a .5" to 1" larger stagger out back may help handling a little, assuming you push most of the stagger inside and not out.

 

Not entirely. Wide and low profile tires actually suck at off the line traction. The sidewall is too stiff and the contact patch is wide and narrow. Tires like these are more for lateral g's and not straightline.

 

can a +22 offset fit on a sedan?

 

No...it is for the coupe.

 

Basically I agree with what Chico has stated.
Just keep in mind you need to be careful with the front to rear DIA difference

Here's a link to a size table for 19s HERE

The sedan VDC slip algorithm is different than the coupe.
You can go staggered but watch the match ups.

Also re what does stagger do.
I'll add to Chico, that it will change handling dynamics.
Large rear = more understeer.

I previously ran a stagger
& changed back to a staight setup for better handling in the bends.

 

So what would you suggest then? I obviously want them to look nice, and seems like the deep dish rims are the way to go.. To give you an idea, I do almost 80 percent city driving... and the other 20 percent on the highways to visit my old man... not a heck of alot of twisties though there are a few.. are the sizes Chico said cool without the VDC going haywire?

I have adjustable sways, so couldn't I change the sways to neutralize it again? I have my sways set MED/MED right now.

 

Yes Chico has given you about the best possible solution.
That selection will not mess with the VDC.

 

I would guess this setup would hinder performance, not help. Depending on the wheel, that size is likely to significantly increase your rotational weight. It's also possible that combo would adversely affect handling.

Many, many people have done +1,+2,+3 packages that look great, but hurt performance and handling.

I'm going to research it first, but I'm thinking of a very lightweight, quality wheel like the SSR Comps in a 17" size that I can put 235's on.

 

I know what your saying & to a great extent I agree.
A lot of people don't realize that overall weight is not the only consideration.

If the weight is the same but moved out towards the perimeter (larger wheel);
It has a huge impact because that weight/mass is traveling a much greater distance.
And rotational force increases.

That's why you don't see large wheels autocrossing.

That's why I went with 18s in a lighter weight wheel than OEM.

 

The bottom line is this is more for show than go.. I am perfectly content with the speed of the G.. it's fast enough for me.

I understand the bit about the smaller rims though..