Does anybody know what is the meatiest (widest) tire that I can put on the stock base wheels without modifying anything? I've been searching in a lot of threads but all I found were dimensions of tires for the 19'' rays. Is there any information about the 18'' stock wheels?

I don't have the wheels so everything I am about to say is theoretical. Hopefully someone with real world experience will chime in. However, this should give you a relatively good idea.

Front Wheel is 18x8 and an 8" wide wheel can generally take up to about 245-255 width tire.

Rear Wheel is an 18x9 and a 9" and you can run a 265-275.

Doing some quick research it seems you have a better tire selection in the 245/45r18 sizes for the front (most notably the Bridgestone RE-11).

For the rear I'd recommend the 275/40r18 for two reasons: first and most important it will match the diameter of the 245/45r18 tire. second, the RE-11 is available in that size.

I estimate this the widest grippiest tire setup that you can run on the OEM 18s.

For clarity: 245/45r18 Front & 275/40r18 Rear and I would recommend the Bridgestone RE-11s

What about for the 19in oem sport rims?

Sent from my SM-N900T using Tapatalk

I don't think you have to worry much about modifying anything with the stock wheels. You're biggest concern is if the tire will fit properly on the wheel. You can probably get away with a 255 in the front 275 in the back. They'll have a lot of "bubble" to them though.

Well, they're an inch wider than the base all around. So probably 255-265 in the front, 275-285 rear? Never done this setup, hopefully someone can confirm...

265/35r19 Front
305/30r19 Rear

Various guys on here running it. Would look like this
http://www.the370z.com/members/azroa...arter-view.jpg


Edit: that photo is actually of 275/35r19s on the front. So like FPEnvy mentioned below 275 is the widest for the front.

265/305 this is what I run on my oem sport wheels

pretty sure some people run 275's in the front as well

i love the aggressive look and most people with a Z goes performance. although i love love to see a well stanced Z.
What is the widest size of wheels that can be put on the 370z sport breaks, without having to make any modifications to the body?
i am considering front 19x11+5 rear 19x13+0. would that be alright? or body work will be needed?

I run 20 x 10.5's on all four corners and haven't seen anything wider on the front unless it's wide body, but I'm sure someone will chime in on this.

http://i222.photobucket.com/albums/d...B7DB78C7_1.jpg

A few guys are running 20x11 F. and 20x13 in the rear, I don't know their offsets W.O.W. is one of them.

I know Rusty is running 345 wide tires in the rear of his Z without a widebody. soooo meaty :yum:

<---- :D Tossed my rears up front when I made the jump to 305s some time last year. I will go down to 265 on the next upgrade. Tramlining like a MF when passing over uneven surface :eekdance:

Edit: Just notice I'm PREMIUM NOW!!!! :vuvuzela: Where are the tittayz?!!:happydance:

oh I know you can go up to 305 in the front i'm just saying the most common people have been running lately is 265 or 275. sometimes 285 when running a square setup.

conrgats on premie status :tiphat:

305s are out back! :p. I think it was Vince1 that had done 285 up front on Nismo wheels. I don't think we can safely stuff 305 up front, that's freaking insane! lol

305s do fit up front from what ive been told.