19" Coupe Wheels on G37 Sedan?

I can't say I'm looking forward to those pics. Too jelly...
Sean
STownSaint, that is the 19" coupe with out spacers? That does not look sunken in at all, to me at least.
"blnewt" or others. If I put 19" coupe wheels on my XS, will that change the geometry of the vehicle and how Infiniti intended the XS to drive (other than 18" vs 19")?
I ask, as I am sure Infiniti, like all car manufactures, put in a lot of thought of the exact wheels to put on the XS. The exact inches, diameter and offset. If I change that, then will the suspension, etc work and move different than intended by Infiniti (other than the 18" vs 19" difference)?
"blnewt" or others. If I put 19" coupe wheels on my XS, will that change the geometry of the vehicle and how Infiniti intended the XS to drive (other than 18" vs 19")?
I ask, as I am sure Infiniti, like all car manufactures, put in a lot of thought of the exact wheels to put on the XS. The exact inches, diameter and offset. If I change that, then will the suspension, etc work and move different than intended by Infiniti (other than the 18" vs 19" difference)?
Other than that the 19s w/ that tire size will work just fine on your AWD, you'll just have a slightly harsher ride due to the smaller sidewall height. And you need to keep those slightly wider wheels mounted in back so you can't do a true 4 wheel rotation unless you dismount the tires.
You might get lucky and find someone selling a square coupe 19 setup, they come up for sale once in awhile.
It seems on a staggered set, the difference in width and offset from fronts to rears is enough to make a difference in how the wheels reflect light.
In my case, the result is the fronts sometime look darker than rears. Could be an effect of having them powedercoated a darker grey. Still, an optical illusion that has distracted me more than once. No biggie.
Finally made all of my adjustments and I'm beyond satisfied with the result. Only thing is I'm maxed out in terms of toe adjustment, so in order to reduce my rear camber I need additional toe adjustment (adjusting toe affects your camber and vice versa). I may get toe arms in the future but for now I don't think -3 is that bad. Here's a list of all my specs. Hope this helps!
- Staggered 19" coupe wheels (19x8.5 F 19x9 R)
- 245/40/19 tires all around
- Ksport true type coilovers
- SPC front & rear camber kits
- 20mm front & 15mm rear spacers
- Front camber: -1 degrees
- Rear camber: -3 degrees
If you run the 19" staggered coupe wheels on your X I'd strongly suggest just running 245/40/19s all around. The stagger is only a 1/2" so running a wider tire in back is hard to come up w/ a combo that will be a proper mount and still have rolling diameters that are OK w/ your AWD setup.
Other than that the 19s w/ that tire size will work just fine on your AWD, you'll just have a slightly harsher ride due to the smaller sidewall height. And you need to keep those slightly wider wheels mounted in back so you can't do a true 4 wheel rotation unless you dismount the tires.
You might get lucky and find someone selling a square coupe 19 setup, they come up for sale once in awhile.
Other than that the 19s w/ that tire size will work just fine on your AWD, you'll just have a slightly harsher ride due to the smaller sidewall height. And you need to keep those slightly wider wheels mounted in back so you can't do a true 4 wheel rotation unless you dismount the tires.
You might get lucky and find someone selling a square coupe 19 setup, they come up for sale once in awhile.
I would only be looking for the OEM Coupe AWD square 19 setup. If I put the OEM AWD coupe square wheels on the sedan, other than the harsher ride because of 19 vs 18. Will the car geometry be thrown off due to the different offset and dimension than what the car was built for?
To each his own, but... yikes!
Last edited by Rochester; Oct 19, 2015 at 09:30 PM.
Finally made all of my adjustments and I'm beyond satisfied with the result. Only thing is I'm maxed out in terms of toe adjustment, so in order to reduce my rear camber I need additional toe adjustment (adjusting toe affects your camber and vice versa). I may get toe arms in the future but for now I don't think -3 is that bad. Here's a list of all my specs. Hope this helps!
- Staggered 19" coupe wheels (19x8.5 F 19x9 R)
- 245/40/19 tires all around
- Ksport true type coilovers
- SPC front & rear camber kits
- 20mm front & 15mm rear spacers
- Front camber: -1 degrees
- Rear camber: -3 degrees
Here's the SPC link (click on installation link for that info) in case you had a shop do this and the toe slot wasn't elongated.
http://www.spcalignment.com/componen...AFrom&to=USATo
- It's intentional, for subjective looks.
- It's necessary because of offset, for a zero-gap tire to compress *behind* the fender.
- It's unavoidable, because the toe slots weren't modified, like you said.
There's no way you should have that much camber if you have the SPC rear kit, unless the SPC Toe bolt slots weren't elongated, or you only had the rear camber arms w/ OEM toe bolts. I've been that low in back and got my camber at -1.0 w/ toe well in spec, something is amiss.
Here's the SPC link (click on installation link for that info) in case you had a shop do this and the toe slot wasn't elongated.
http://www.spcalignment.com/componen...AFrom&to=USATo
Here's the SPC link (click on installation link for that info) in case you had a shop do this and the toe slot wasn't elongated.
http://www.spcalignment.com/componen...AFrom&to=USATo
I think once you tip over -2* it becomes something you can easily eyeball as noticeable negative camber. However once you approach -3*, it starts to look pretty darn silly. If you're under 26" floor to fender, then you're probably at zero gap.
To each his own, but... yikes!
To each his own, but... yikes!
The SPC toe bolts were not installed because my alignment tech advised against drilling/elongating the toe hole, saying the subframe would be compromised. He's had lots of experience with alignment and suspension and even though I know everyone uses the SPC toe bolts, he recommended toe arms to be the better solution. Might as well, since my spring buckets are empty anyways.
The rear camber is definitely noticeable, but it doesn't really look like a whole lot of camber. Looks like it's only at -2, definitely not silly looking IMO. I want to correct it down to -1.5 or -2 down the road anyways.
The rear camber is definitely noticeable, but it doesn't really look like a whole lot of camber. Looks like it's only at -2, definitely not silly looking IMO. I want to correct it down to -1.5 or -2 down the road anyways.

At any rate, G is looking good and I think you'll really be happy w/ the drive when you get that camber a bit more balanced front to rear.
Only the inner side of the slot needs to be elongated so it's not much really compared to elongating both sides (as per the template). But since you do have the true coilover configuration the toe arms would be a good plan and get rid of a little weight back there as well. As far as the subframe being compromised by such a minimal amount of cutting, I doubt SPC and other brands would continue w/ those products if there was evidence of that (especially in this litigious era) but 
At any rate, G is looking good and I think you'll really be happy w/ the drive when you get that camber a bit more balanced front to rear.

At any rate, G is looking good and I think you'll really be happy w/ the drive when you get that camber a bit more balanced front to rear.











