Wheel size for G35 sedan, will coupe wheels work? - 6MT.net Infiniti G35/G37/GTR Forums
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post 1 of 41 Old 10-16-2005, 08:25 PM
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Default Wheel size for G35 sedan, will coupe wheels work?

I have a 2003.5 G35 sedan, 6mt. Currently 17" 5 spoke.
Will G35 18" coupe wheels work on this car?
Thanks
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post 2 of 41 Old 10-17-2005, 03:05 AM
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Yes the 18" OEM wheels will work. One of the sedan owners down here are running the 18's along with the staggered tires.

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post 3 of 41 Old 10-17-2005, 09:07 AM
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Why would you want to put couple wheels on your sedan. My roommate is getting ready to put after market wheels on his coupe because of the road noise that comes from his stock couple tires. Because they're staggered, you have to use directional tires which means no rotating, just swaping back and forth. Because he can't rotate them, they wear flat every set he puts on there. It's horribly loud and I think that would be the dumbest thing you could do. What do you hope to gain from doing it?
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post 4 of 41 Old 11-03-2005, 11:50 AM
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Quote:
Originally Posted by jmcclain
Why would you want to put couple wheels on your sedan. My roommate is getting ready to put after market wheels on his coupe because of the road noise that comes from his stock couple tires. Because they're staggered, you have to use directional tires which means no rotating, just swaping back and forth. Because he can't rotate them, they wear flat every set he puts on there. It's horribly loud and I think that would be the dumbest thing you could do. What do you hope to gain from doing it?
Your friend is probably experiencing extreme road noise due to overinflated or faulty tires. It has nothing to do with the wheels. The 18" coupe wheels work really well on the sedan and actually look better than the sedan's OEM wheels.

The coupe wheels are 18x8 +30 offset all around and work perfectly well with the OEM tires specs of 235/45/18 all around. Which means he will be able to rotate them.

I have them as my winter set up and love them. Here are a couple of pics.

http://g35driver.com/forums/showthread.php?t=73110[/img]
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post 5 of 41 Old 04-13-2006, 10:55 PM
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Chico, that is a great look on the Sedan for ALL the time, not just for winter. If I go bigger wheels, (17 vs 18's) I think the coupe 18's look great on the sedan!!

Sorry folks! I turned trader and went w/ another makers SUV. (i do love it though!) Local Infiniti dealer wouldn't deal!
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post 6 of 41 Old 04-30-2006, 01:29 PM
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I stuck with 17" as I wanted to reuse the $600+ Goodyears I have on it, so I bought 17" chromes, MB "Spark" at Discount Tire. They look very nice and were less than $800. Smoke, a member of this forum put 18" OEMs on his sedan and they look awesome! I think tho he has since gotten aftermarket wheels....

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post 7 of 41 Old 04-30-2006, 01:49 PM
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Quote:
Originally Posted by chico
The coupe wheels are 18x8 +30 offset all around and work perfectly well with the OEM tires specs of 235/45/18 all around. Which means he will be able to rotate them.

Arn't coupe rims were wider in the rear than the front?

Do the coupe rims on the rear of a sedan stick out past the edge of the car? I would like 18's with a nice wide tire, but I want a mostly stock look. I would not want the tires to look too wide for the car and to stick out past the edge of the car.
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post 8 of 41 Old 04-30-2006, 03:18 PM
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it's all about offset. the coupe wheels won't stick farther past the wheel well at all. you can also just get the same size tires all around to be able to rotate them

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post 9 of 41 Old 04-30-2006, 03:35 PM
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Actually, I have the coupe tires, and they do stick out about a quarter of an inch in the back. They are definitely worth it. Of all the upgrades I have done, it is by far the best. But if you would have searched, you would have known this, as I have stated this like 3 times already. If you have the chance snag them, they won't make noise, and are a lot stickier and better handling than stock.
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post 10 of 41 Old 05-19-2006, 01:29 PM
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hey i have the oem 18 inch wheels on my 6MT sedan and ive been thinking of purchasing the oem 19's on the coupe and chroming them but am unsure of the 8inch front wheels? any suggestions anyone? thanks
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post 11 of 41 Old 05-22-2006, 03:27 PM
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those do look very nice, i wonder how it looks on blk
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post 12 of 41 Old 06-06-2006, 12:54 PM
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I have always wondered how the front coupe 19s would look on a sedan lowered slightly.
Someone here should try it

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post 13 of 41 Old 06-06-2006, 01:24 PM
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^^^a couple members here already have the 19's on....not sure if they lowered it...

E-A-G-L-E-S
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post 14 of 41 Old 06-06-2006, 11:49 PM
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rayman, I've contemplated this exact problem just recently. I finally decided against the coupe 18's and went with the 18's on an '06 G35SEDAN's factory sport wheels/tires. The biggest reason is I can't get anyone (anyone with real good knowledge on vehicle dynamics and handling) to tell me that the difference in the offset is not going to affect the factory handling.

The coupe's offset is 15mm smaller than the sedan's. This means putting the coupe's wheel on will increase your track width by 30mm. This may be alright, since "wider is better" and 30mm is rather a small percentage of the whole track width (which is over 1500mm). The bigger issue is it changes the scrub radius by 15mm also and scrub radius is usually very small -- on the order of mm's. I can't get the Infiniti help line to tell me what it is on the G35. But nevertheless, it's a huge change. And I don't know enough to say that it's not going to affect handling.

Also, if the new wheels have bigger offset, you can put spacers to make it the same. But the coupe has smaller offset and there's no negative spacers

So, if you're picky and unsure as I am, don't do it. But if you're not picky on the fine details of the handling, I know quite a few people here are happy using the coupe's 18's while I was doing my research.

Anyway, those 18's from the '06 sedan look and work great on mine. And I have absolutely no doubt about the fit. So that would be my suggestion.

04 Sedan 6MT/Caribbean Blue/Willow/Aero/Sunroof/Bose/Free broken Infiniti pen
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post 15 of 41 Old 06-07-2006, 03:16 AM
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Is is absolutely okay to fit sedans with a non-staggered wheel/tire setup. Just know that you will gain more understeer if left as is. Sedan's oem spring rates have the non-staggered setup in mind. No cause of major concern however. A set of adjustable sway bars can easily restore the balance and beyond.

But wait, the real dilema with fitting the 18" Coupe/Z wheel is more of a aesthetic issue IMHO. Assuming stock ride height is maintained, the rears will most definitely stick past the fender line and that is just not my cup of tea (although it may be your, in which case you've nothing to worry about then). If however you have reduced ride height in mind, via either lowering springs or coilovers, then it is possible to make them tuck flush with the help of the increase negative camber. Hardly an elegant solution to the problem in my book however. If you care for your tire and handling traits, a four wheel re-alignment ought to be performed post lowering. That would surely bring the rear cambers back as close to oem setting as possible and you'd wound up with the same rear stick out issue.

I myself run the 17" Z wheels for track duty. My sedan is substantially lowered (~1.75" - 2") and the rear camber is -1.7*. As such, the 17" Z rears are just about perfectly aligned with the rear fender line (neither sticking out not tucked). So, you do the math with a wider 18" Coupe/Z wheel. As in, not gonna happen unless you're willing to sacrifies camber.

For your reference, refer to the Sedan Wheel Fitment Chart I created way back during the last ice age.

-Clint
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