Your speedo will be off a bit, but not much else. I'm running 255/35/19--295/30/19 with no adverse effects.

No big affect on tread life either?

Not that I have noticed, but mine is a weekend toy so it doesn't get many miles.

Hi, I have a 370z sport package, I picked up some 18'' rims to replace the 19'' rims because 18'' tires are alot cheaper for track days, my problem is with the massive brake kit, the front brakes rub on the barrel or ''hoop'' of the rim. I am looking to push the rim out 3mm with a spacer and pick up extended studs to be safe. My mains concerns are if i need to maintain a certain space between the rim and the brakes. Fortunitally if I push the rim out far enough I will clear the brakes, 3mm should be enough. Also Will 18's negatively affect my car at all?

This is why searching and doing PROPER research on a forum is rewarding. I like your setup now that you're lowered but, at stock height that is a tad bit aggressive for me :( That appears to be about 5-10mm of poke at stock height. I don't want that and am not looking to lower my Z (been there, done that on my G35). I was looking to grab a set of Forgestars in the same specs you have and now... I probably won't.

Wheel fitment at stock height is discouraging for me lol
I may just leave the stock wheels alone :eek:

EDIT:( yeah my mind set has changed lol I can live with this look now)

hey guys, will the base 18x9 +15 offsets fit up front? i am looking to square my car up and save money on tires, too. i am just worried because the lowest offset i have seen on 18x9 is in the low 20's.

Was wondering the fitment, how much rolling or camber I would need for:

F:19×9.5 +3mm
R:19×10.5 +1mm

Haven't been able to find example pics. Thanks in advance!

Depends on how low you want to go and what size tires you want to run. My setup is 19x9.5+20--19x10.5+0---255/35/19--295/30/19 lowered on swifts and I have tons of room.

i have a question too guys... i can decide if go with an 18" or 19" wheel... but if i go with 18" wheels im going to buy the Enkei RPf01 in 18x9.5 & 18x10.5 +15 all around. That size and offset will clear my Akebono breaks??

Thanks!!!

Maybe you are going to tell use the search bar but i can find too much info about this wheels on a 370z lol!!!

That's gonna be an aggressive setup, especially with little to no stretch. What tire sizing do you want to run? I'd say that's hard to do with a low camber.

He already went for it, i think they are for sale now.

http://i1109.photobucket.com/albums/...ps97a258d1.jpg

Oh christ. I didn't realize how old that post was.

:icon18:

ktmmike, welcome to the370z.com. :tiphat:

1. The 2014 370Z base still comes with 18" wheels. The sport package gives an upgrade to 19" wheels. Does the car on the lot have red brakes that say "NISSAN" on them? If so, it has the sport package.

2. The wheels are indeed interchangeable, with no modifications whatsoever. The only limitation with Sport package-equipped (the one with the big brakes) is that you CANNOT fit smaller than 18" wheels. Anything 18" or larger is fine.

3. The 350Z also had wheel options - a base 17" wheel with (I think) 6-7 spokes? And it had an optional 18" forged by Rays wheel option with 5 spokes.

4. I have seen 370z 19" wheels on a 350z before, and I thought it looked great.

5. I don't think there is a specific thread, but correct me if I'm wrong. All it boils down to is this:

US Spec 370z's from 2009-present can come optioned in 5 manners:

-Base
-Base+Sport
-Base+Touring
-Touring+Sport
-NISMO

The base and base+touring models have 18" wheels and smaller brakes. Any Z with the sport package will have larger brakes, and the 19" forged by Rays wheels.

The NISMO has it's own body kit, and NISMO branded 19" wheels that are wider than the Sport package 19" wheels.

If you want more info, don't hesitate to search, or if you can't find it, ask! :tup:

haha thanks Kaizen!
and yea they are for sale now looking for a more aggressive set up.


yea im running a 285 on an 11 and a 245 on a 10

running -2 camber in front and -3.5 on the rear.

Thanx Alstann,

That is exactly what I needed to know.

Next question:
1. If we were to take a BASE 18'' front wheel WITH STOCK TIRE MOUNTED,
and stand it next to a BASE + SPORT 19" front wheel with stock tire mounted, would they be the same height (and same circumference) ???
(in other words, does the 18" wheel come with a HIGHER PROFILE TIRE than the 19" wheel in order to make them the same height???)

Would an 11" wheel with a +15 or +18 offset in the rear using a 295 or 305 poke too much on a stock height Z? Perhaps a +25? Im digging now for it but, most of you guys are lowered on SOMETHING lol

First Tire Change
 

Hi everyone,

I'm getting ready to buy the first set of new tires for my 2011 Touring/Sport Coupe. I want to increase the tire size but keep the original Rays Sport rims (F19x9+47, R19x10+30), without suspension mods or spacers.

From what I can tell from online size calculators and reading this forum, it looks like the maximums are (F) 275/35-19 and (R) 305/30-19. I'm a little concerned about excess sidewall bulge and "squirmy" handling with the stock wheels. From what I can tell there shouldn't be any rubbing or interference problems, and the height is only about .2" lower.

I'm looking at Bridgestone Pole S-04's (Summer) or RE970AS's (all season). Any recommendations on the sizes and tire selections?

Thanks

ktmmike,

You are correct. The base 18" wheel comes from the factory with a taller (higher profile) tire. If we take a look at the rear wheels only, the base model comes with a 245/45-18 tire in the rear, where the sport 19" wheel comes with a 275/35-19 tire in the rear. You will find that these tires are only .1 inch different in overall diameter, or in other words, they are the same height overall.

So, if you were to take a set of base wheels and tires, and slap them on the Sport package equipped Z, the speedometer would be almost exactly identical. :tiphat:

Both of those tire choices are very nice tires - although, they are both suited for different purposes. I've personally owned both tires, so I'll throw my 2c in! :tup:

First off, if we want to talk about sizing up the tires, there are several combinations you can do, such as a 245/40 and 285/35 (stock NISMO sizing), or a 265/35 and 305/30 (beefy setup). With an online size calculator, like you've been using, you can play around with sizing a bit to see what matches up nicely.

As for sidewall bulge and squirmy handling, something I can note is that the RE970AS have SOFT sidewalls. I had a set of 4 on the car for about 50 miles before I decided I hated them. The RE970AS have phenomenal grip, though. They hooked up better than my stock RE050A (I ran a 255/40 and 295/30 setup with them - it was weird, I know), but the sidewalls were so mushy and soft. It ruined the experience of the car for me. I loved how the stock tires felt very stiff and confident. However, if you don't do spirited driving often, and you want a tire that lasts, the RE970AS did that great.

I personally ended up doing a compromise setup - I ran S-04 in the front, and RE970AS in the rear. It combined the stiff sidewall up front for handling and stability, and the grip and longevity I desired in the rear tire. It was weird, but worked for me. Others said it was a bad idea. :bowrofl:

Overall, if I had to do it again, I would run S-04 all the way around again. The S-04 handled better than the stock tires, had plenty of grip, and the sidewalls were awesome. I would trade that over the super long life of the RE970AS. Of course...if money isn't an issue, you could ball out and go for RE-11 or PSS.

Alstann,

Thanks for your insight. I like the crisp feel of stiff sidewalls, so your comment on the RE970AS is probably enough reason to go with the S-04's all around. The OEM RE050A's are all but useless in snow, but of course they're near their end of life. Hopefully new S-04's will have enough bite for what's left of Winter.

The reason for going to (F) 275/35/19 and (R) 305/35/19 is that the diameters are almost exactly the same as the stock (F) 245/40/19 and (R) 275/35/19 OEM tires. The 265/35/19's you mention are just a little smaller in diameter, but not to much. Do you anticipate any significant change in over/understeer due to the difference in width of 265 vs 275's in the front? I don't think it would be much.

My goal in going to the beefier tires is that I would get more grip, and also that they would last a little longer since they would carry a lighter load per square inch. You didn't mention any issues with clearance or rubbing so I'm guessing there are no problems.

Thanks again for the advice,

Steve

Kaien do you have Pics of your setup. Would like to see how the poke looks on the rear.

Thanx again Alstann!

1st few pics are stock height, then lowered on swifts in the last two pics and vid. I don't have any really good shots.

IMG_1113_zps5ef31323.mp4 Video by KaienZ34 | Photobucket

http://i1109.photobucket.com/albums/...psf819c91b.jpg


http://i1109.photobucket.com/albums/...ps3f68bff6.jpg

Sorry did not see your previous post, thanks Kaien looks good! + Rep

Is a +3 in the front more or less poke than the +20? Sorry I am completely noob to offsets.

It'll be 17mm farther out than a +20, so much more poke.

Did the video work for you guys?

Side Note: Stock exhaust with aam short tails in the vid.

Yea the link to the video worked for me. Thanks for the input. I do want an aggressive stance think the +3 and +1 offset might be too much. I plan on lowering on coils and dont want to run that much camber.

What y'all think about this fitment?

19x10.5 +20 square setup with 275/30/19 and I am lowered on h&r springs.

Will either or both of these fitments work? (obviously they wont at the same time)

Wheels:
Front - 20x9.5 +25
Rear - 20x10.5 +22

Tires:

Option 1 - Front - 255/35 Rear - 295/30

Option 2 - Front - 265/35 Rear - 305/30

I'm leaning more to option 1, but really need to know if either will work without rubbing. The car is completely stock, no suspension modifications what so ever.

At stock height and those offsets you'll have no problems with rubbing at all. In fact I'd put either a 10mm or 20mm spacer in the rear or it will be pretty sunken in. Plus if it were me I'd go with op 2.

Stock nismo rims looking to upgrade tires and need to be sure they won't rub.

Want to run
275 30 19 (F)
305 30 19 (R)

Stock nismo suspension.
Was planning on running 10mm/15mm spacers.

At stock height you should be ok, I'd do a quick advanced search here as I'm sure someone has done it. I've seen the 305/30 not the 275/30 and I'm not sure if the 305 I've seen had spacers or not.

how about a very simliar set up to zilverbullet. 19x9+6, 19x10 +6 as i went throught the entire thread and no one had mention this set offset yet. rears would be fine for me. im sure there might be just a bit of a poke in the fronts but my main conern is will it rub when hitting dips? lowered on h&r and oem spec camber. if anyone has pics or video in very simliar setups. it would be great

edit: will be running on v12 oem spec tires

I'm dropped on Fortune 500 coil overs with 305s rear and 265 fronts with 15s all around with no problem. I believe Rusty is running 285's up front with a stock set up.

Yeah someone said because I'm *not dropped* with only the stock nismo camber it might be a problem. I already did an advance search and didn't find anything. Just want to make sure I won't rub with this setup before I go buy tires.

Rusty is running 275/35/19 and 325/30/19 on 19x9.5 and 19x12 on his nismo. Not sure of the offsets or if/how much he is lowered.

http://www.the370z.com/members-370z-...journal-2.html

I do have rear toe bolts and camber arms as well.

I'm stock height. Spec's are 9.5x19 +25 front, 12x19 +28 rear. Here's a couple of old pic's.

no opinion guys?