18" Wheel & Tire Discussion Thread
#1121
Hey alll! I posted some pics earlier.
The Msr wheel was 20x8.5 with 5 5/8 backspacing.
Not sure on offset. Gonna guess 35+ from looking at all Msr wheels.
Would this set up work? Even with a larger backspace?
without fender rolling/spacers/any other mods?
http://www.nlmotoring.com/XXR-521-Wh...2.htm?CartID=1
18x8.5 and 18x10 both +20? Or +35 front +20 back?
245/40/18 front and 275/40/18 back?
The Msr wheel was 20x8.5 with 5 5/8 backspacing.
Not sure on offset. Gonna guess 35+ from looking at all Msr wheels.
Would this set up work? Even with a larger backspace?
without fender rolling/spacers/any other mods?
http://www.nlmotoring.com/XXR-521-Wh...2.htm?CartID=1
18x8.5 and 18x10 both +20? Or +35 front +20 back?
245/40/18 front and 275/40/18 back?
Last edited by Maiidz; 12-06-2012 at 05:25 AM.
#1122
Registered User
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^^^MAIIDZ.... If you dont want to roll you fenders I would go with 18x8.5 and 18x10 with a +25 offset on both. They dont come with a +20 offset. You might have lot of people tell you to use spacers and bring those wheels out some. I have the 521s. I have 18x10 all arround with a +25 offset. I plan to use a 15mm wheels spacer in the rear to have the back flush with the rear fender. It does not require a roll if you run 18x10+25 in the rear. I just rolled my fenders last weekend to make room for my wheel spacers.
#1123
^^^MAIIDZ.... If you dont want to roll you fenders I would go with 18x8.5 and 18x10 with a +25 offset on both. They dont come with a +20 offset. You might have lot of people tell you to use spacers and bring those wheels out some. I have the 521s. I have 18x10 all arround with a +25 offset. I plan to use a 15mm wheels spacer in the rear to have the back flush with the rear fender. It does not require a roll if you run 18x10+25 in the rear. I just rolled my fenders last weekend to make room for my wheel spacers.
245/40/18 and 275/40/18 alright?
Also do your tires rub when turning?
Last edited by Maiidz; 12-06-2012 at 01:44 PM.
#1125
Registered User
iTrader: (1)
I have 4 XXR 521s 18x10+25
I have 265/35/18 front and 275/35/18 rear.
I am thinking of going 275/35/18 front and 275/40/18 rear next time.
I am lowered on 1" Eibach Pro Kit with a 1/2" cut on the rear Springmounts.
I have my fenders rolled in the back. I am going to use 15mm spacers in rear.
I am installing my rear adjustable camber arms this weekend.
The camber arms are very needed. Right now my rear wheels are tilled -3.
Nothing rubs on my car, even when turning.
If you get the 18x8.5 and 18x10, I would go with 245/40 and 275/40.
I know of 2 guys on my350z with that set up. I can try to find you pics.
Last edited by dexrod; 12-07-2012 at 02:54 PM.
#1129
Registered User
Just want a little bit wider tire for stock wheels
I realize there are a lot of threads about this, but they are always like what's the biggest tire I can put on a stock wheel. This is not what I am asking. I realize some people will say just go with the stock size, but I think with a 8.5 wide wheel you can go a little bit wider than 245/45. So this is basically a yes or no, btw I have the 06+ touring wheels. Would 245/40r18 in the front and 255/40r18 in the back safe to run with vdc and make the tires wider also would it provide better handling?
#1130
Registered User
iTrader: (7)
So buy some bigger tires.....done....
I run a 8.5 up front with my nismo wheels.....245/40
Not sure about messing up VDC though.
you realize your stock wheels are staggered already. 8" up front and 8.5 R if I remember.
I don't think you will see a handling increase with that, all things considered.
I run a 8.5 up front with my nismo wheels.....245/40
Not sure about messing up VDC though.
you realize your stock wheels are staggered already. 8" up front and 8.5 R if I remember.
I don't think you will see a handling increase with that, all things considered.
#1131
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
I realize there are a lot of threads about this, but they are always like what's the biggest tire I can put on a stock wheel. This is not what I am asking. I realize some people will say just go with the stock size, but I think with a 8.5 wide wheel you can go a little bit wider than 245/45. So this is basically a yes or no, btw I have the 06+ touring wheels. Would 245/40r18 in the front and 255/40r18 in the back safe to run with vdc and make the tires wider also would it provide better handling?
#1132
Registered User
Will the finder gap actually be that noticeable? Also why will the spedo be off? I thought if you got the tire sizes right it would be ok. What can I do to keep the spedo correct?
#1133
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Location: Sherman Oaks, CA
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I found that the easiest way to get a good approximation for changes to tire dimensions and speedo issues is by using this tool:
http://www.miata.net/garage/tirecalc.html
It has a helpful graphic showing overlays of old vs new size.
http://www.miata.net/garage/tirecalc.html
It has a helpful graphic showing overlays of old vs new size.
#1134
Registered User
I found that the easiest way to get a good approximation for changes to tire dimensions and speedo issues is by using this tool:
http://www.miata.net/garage/tirecalc.html
It has a helpful graphic showing overlays of old vs new size.
http://www.miata.net/garage/tirecalc.html
It has a helpful graphic showing overlays of old vs new size.
#1135
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
Yes you will need wider wheels for optimal performance and handling with those sizes. If you want to keep the wheels you have, just use the previously mentioned tires.
#1136
Registered User
Ok thanks a lot guys. I'm sticking with stock becasue it's the best for the wheel. I guess I'll just need to get wider wheels when I get aftermarket ones.
#1137
Vendor - Former Vendor
Definitely would recommend wider wheels for those sizes.
#1138
Registered User
iTrader: (1)
Colombo owns this car.
18x8.5+25(25mm spacer) now 0
18x10 +25(20mm spacer) now +5
Lots of pictures on the XXR Tread link below.
https://my350z.com/forum/wheels-and-...thread-49.html
18x8.5+25(25mm spacer) now 0
18x10 +25(20mm spacer) now +5
Lots of pictures on the XXR Tread link below.
https://my350z.com/forum/wheels-and-...thread-49.html
#1139
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Join Date: Apr 2012
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18" wheels
I saw some other folks posted the same issue here. When searching for 18" wheels (e.g. on tirerack) for my 2004 350Z Base, most of them are 35mm offsets. Here I read they should be between 15mm & 25mm.
Where should I get wheels then? And which? I'd prefer not to use spacers, and it looks like 18x8.5 and 18x9.5 are the way to go, on which I'd put 245/40R18 & 275/40R18 tires, such as Toyo R888.
I've got a StopTech ST-40 brake kit on the front. Or if someone can recommend tires for my 17" rims instead that won't get destroyed when I don't drive as smooth as Jenson Button at the track.
Where should I get wheels then? And which? I'd prefer not to use spacers, and it looks like 18x8.5 and 18x9.5 are the way to go, on which I'd put 245/40R18 & 275/40R18 tires, such as Toyo R888.
I've got a StopTech ST-40 brake kit on the front. Or if someone can recommend tires for my 17" rims instead that won't get destroyed when I don't drive as smooth as Jenson Button at the track.