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18" Wheel & Tire Discussion Thread

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Old Dec 27, 2011 | 01:42 PM
  #561  
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Default Questions about new wheels and tires...

First off, I'm thinking of purchasing a set of Forgestar F14 wheels in 18x9 +20 front and 18x10 +25 rear. In looking at the "Top 100 Questions" thread they make the recommendations:

18" combination:
Front 18" x 8.5" , Offset +15 to +25, Tires 245/40/18
Rear 18" x 9.5" , Offset +15 to +25, Tires 275/40/18
(lower offset such as +10 in rear is possible but may require rolling)

Front 18" x 9.5" , Offset +25 to +30, Tires 255/40/18
Rear 18" x 10.5" , Offset +28 to +35, Tires 285/40/18 or 295/35/18
(lower offset such as +23 in the rear is possible but may require rolling)
With these numbers, according to the offset calculator, the largest changes in clearance are -19 mm inside/+24 mm outside for the front and -27 mm inside/+31 mm outside for the rear. My numbers above come out to -3 mm inside/+23 mm outside for the front and -11 mm inside/+27 mm outside in the rear. Can I safely assume that I won't have any rubbing problems on the stock suspension, or if/when I lower it up to an inch?

Another question I have is about tire sizes. Why is the suggestion 245/40 front and 275/40 rear while 255/40 front and 275/40 rear would keep the same outside diameter as stock? Lastly, I was going back and forth between Hankook Ventus V12 K110 and Continental ExtremeContact DW for the tires. I figure that since the Hankooks have increased in price the DW's are a no-brainer, especially since they're about 3 lbs lighter per tire. What do you guys think? My car is a daily driver and I will, hopefully, be doing a few autocross/track days a year. Subsequently, I am not looking for anything extreme or super aggressive. Thank you in advance for any thoughts and suggestions you may have.

Last edited by zeeder; Dec 27, 2011 at 01:44 PM.
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Old Dec 27, 2011 | 06:16 PM
  #562  
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Difference in circumference is 2.4 percent. Would like to see 3.0 percent with VDC.

Last edited by davidv; Dec 27, 2011 at 06:20 PM.
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Old Dec 28, 2011 | 03:32 AM
  #563  
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Originally Posted by davidv
Difference in circumference is 2.4 percent. Would like to see 3.0 percent with VDC.
But it's nearly the exact same difference as stock:

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Old Jan 3, 2012 | 09:30 PM
  #564  
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18x9.5 +12 CR Kai's with 245/40 all around.
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Old Jan 4, 2012 | 11:21 AM
  #565  
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^Specs would be helpful for the thread
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Old Jan 4, 2012 | 01:25 PM
  #566  
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I posted them at the end of the post lol. 18x9.5 +12 with 245/40 all around. I forgot to add that i do have spacers in the front and rear but I can't remember what sizes off the top of my head.
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Old Jan 4, 2012 | 03:18 PM
  #567  
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Default 18x9.5 tire help

Hello, Iv'e been searching for a while and haven't found exactly what iv'e been looking for. I found a 18x9.5 +15 wheel setup that i'm interested in buying but i'm kind of stuck on tires. I'm slightly lowered on GF210's without the spring mount mod. Id like to stick with the same size all around in a 265/35. But i don't want it to look like i have no tire and a bunch of wheel gap.

suggestions? should i stick with a square tire setup?

help appreciated.

EDIT: i will eventually track with these wheels/tires. but mostly it will be daily driven.

Last edited by 805350z; Jan 4, 2012 at 03:22 PM.
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Old Jan 4, 2012 | 04:13 PM
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Originally Posted by 805350z
Hello, Iv'e been searching for a while and haven't found exactly what iv'e been looking for. I found a 18x9.5 +15 wheel setup that i'm interested in buying but i'm kind of stuck on tires. I'm slightly lowered on GF210's without the spring mount mod. Id like to stick with the same size all around in a 265/35. But i don't want it to look like i have no tire and a bunch of wheel gap.

suggestions? should i stick with a square tire setup?

help appreciated.

EDIT: i will eventually track with these wheels/tires. but mostly it will be daily driven.
Thread merged

As always, I would start with a budget and go from there.

There are tons of options here for you
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Old Jan 4, 2012 | 04:42 PM
  #569  
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Not sure if I worded it correctly. But im looking for tire size help. Not wheel search help.
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Old Jan 5, 2012 | 12:54 PM
  #570  
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Originally Posted by 805350z
Hello, Iv'e been searching for a while and haven't found exactly what iv'e been looking for. I found a 18x9.5 +15 wheel setup that i'm interested in buying but i'm kind of stuck on tires. I'm slightly lowered on GF210's without the spring mount mod. Id like to stick with the same size all around in a 265/35. But i don't want it to look like i have no tire and a bunch of wheel gap.

suggestions? should i stick with a square tire setup?

help appreciated.

EDIT: i will eventually track with these wheels/tires. but mostly it will be daily driven.

Best bet with those rims...I have this...

245/40 Front and 275/40 rear. Maintains stock diameters to stay with VDT specs. BTW... You will have a major gap in the rear. Also the ride will be harsher with 35 profiles.
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Old Jan 5, 2012 | 02:47 PM
  #571  
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Old Jan 5, 2012 | 07:26 PM
  #572  
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Hey everyone. I need some help for a winter tire set up. Im looking at some 5 spoke 2008 sti alloy rims with blizzaks. http://detroit.craigslist.org/okl/pts/2783054166.html
I dont know if these would be ok in offset and everything. Any help would be appreciated
Thanks a lot.
For rim specs:
http://www.insideline.com/subaru/imp...a-wrx-sti.html
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Old Jan 11, 2012 | 05:54 PM
  #573  
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Default Tire sizing issue..

Sooo new member here (been reading for 2+yrs though).

Currently i'm running the stock sizing of 18x8 on the V1 rims and recently purchased a set of new rims being 18x8.5 and 18x9.5 with a 35mm offset. Where i'm sitting at the moment is the sizing of the tire.

I live in a area where there is quite a bit of potholes, not necessarily bothering me but taking that in context. Was looking for 235/40/18 and 275/35/18 which I was worried about fitment (possibly fender rolling) but recently I've come across a great deal on 245/35/18 & 275/30/18.

I'm just really starting to dig into proper sizing but curious on could this possibly avoid doing a fender roll, and not a significant decrease in wheel walls.

I can't find any pics on the net of examples with same fitments.

Please help me out, thanks!

FYI: Stock height is on the car, and more looking for a "flush" look.

Last edited by iAvery; Jan 11, 2012 at 05:59 PM.
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Old Jan 11, 2012 | 05:58 PM
  #574  
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Default Need advice:Will 225/40/18 offset +45 Tires & Rims Fit?

Hi everybody, this is my first post & I need some advice.

I found some rims and tires with only 1500miles on them.
Rims: 18" Konig Hotswaps, offset +45
Tires: all round Nankang Ultrasport NS-2 225/40/18

Will these fit my 2003 stock 350Z base?

*I'm getting these for $450 Friday Morning or Thursday night if you guys say go ahead and get them asap since they are $1200 New (& these are practically new with only 1500)

Thanks in advanced
Attached Thumbnails 18" Wheel & Tire Discussion Thread-5n35l15ja3g33je3n8c1b455bc822668f1c47.jpg   18" Wheel & Tire Discussion Thread-5n95g25f93gd3k93ibc1b1603ae1fff5d1221.jpg  
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Old Jan 11, 2012 | 06:05 PM
  #575  
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Old Jan 11, 2012 | 06:18 PM
  #576  
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I have on my current rims the following which I could use on two of the konig rims to make it a little staggered?? lol

Tires: Nankang ultra sport NS-II
Size: 255/35/18
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Old Jan 11, 2012 | 06:18 PM
  #577  
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Very far from the flush look.
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Old Jan 11, 2012 | 06:20 PM
  #578  
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Stock height those sizes would be fine. You could even squeeze a 285 on the rear if you're going for the fat tire look.
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Old Jan 11, 2012 | 06:20 PM
  #579  
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Originally Posted by iAvery
Sooo new member here (been reading for 2+yrs though).

Currently i'm running the stock sizing of 18x8 on the V1 rims and recently purchased a set of new rims being 18x8.5 and 18x9.5 with a 35mm offset. Where i'm sitting at the moment is the sizing of the tire.

I live in a area where there is quite a bit of potholes, not necessarily bothering me but taking that in context. Was looking for 235/40/18 and 275/35/18 which I was worried about fitment (possibly fender rolling) but recently I've come across a great deal on 245/35/18 & 275/30/18.

I'm just really starting to dig into proper sizing but curious on could this possibly avoid doing a fender roll, and not a significant decrease in wheel walls.

I can't find any pics on the net of examples with same fitments.

Please help me out, thanks!

FYI: Stock height is on the car, and more looking for a "flush" look.
You will not have to roll fenders. The ideal set up would be 245/40 F and 275/40 R..that's what I have on my 9.5" rims (all around). You will get wheel gaps and harsher ride with all the tires you listed... the worst being 245/35 and 275/30 which will be very harsh and leave huge fender gaps.

I suggest you go here to get comparative tire sizes:

http://www.1010tires.com/TireSizeCal...bmit&reset=yes
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Old Jan 11, 2012 | 06:21 PM
  #580  
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Originally Posted by ZS14
Very far from the flush look.
By this what do you mean? Test fitments are "just" inside of the wheel well, I was more worried about the 35/30's having to less of walls..

Any pics of a Z with that same fitment?
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