nismomike

iTrader: (9)

Searched around but couldn't find anything that I was confident enough that answered my question. Currently, I have Bridgestone Potenza RE-11's on my 08 nismo in 265/40/18 front, and 285/35/19 rear. Superb tires. Expensive. I have about 5k miles on them and they're showing even wear on all 4 corners. i estimate about 70 percent tread life. If I were in the market to eventually get new tires, would I be able to work with having a 265/35/18 front and 285/35/19 rear (rear stays the same size)? Because now, the front tires have a thicker sidewall due to it being wider, and I was thinking that if I went to a 35 mm sidewall with the same 265 width tire, would everything be okay? They are on stock Nismo wheels and on stock Nismo suspension, and the car does not come with VDC from the factory, just TCS. Would appreciate your input

davidv

iTrader: (2)

Photos of tire treads helpful.

terrasmak

iTrader: (8)

Nope, but you may get away with 275/35-18's up front.

davidv

iTrader: (2)

OEM tire circumference shows a difference of 1.9 percent.
And when you plug in your numbers what do you get?

Thermal1

iTrader: (23)

You didnt search very hard. Or even read the stickies at the top of the forum?

https://my350z.com/forum/wheels-and-...read-here.html

zerostyle

iTrader: (11)

DavesZ#3

iTrader: (26)

265/35/18 would be past the limit of the stagger between the front and rear. 265/35/18 paired with 285/35/19 are 1.6" difference in OD. The recommended is 0.25 to 0.75. The upper limit for no problems is around 1" in some cases.

The OEM difference is only 0.6" with the 265/40/18 up front.

You can't really put a decent width up front with only 35 profile. The problem is that your front wheel is 18" vs the rear of 19" - that requires a little extra sidewall height to keep them within the allowable ODs.

O_SO_ICY_Z

iTrader: (1)

good reply dave!

nismomike

iTrader: (9)

thanks for the input, I was merely just wondering. On my next set, I will still keep the same sizes I am running now. I dont have pics of the treads David, I dont keep a record of that stuff everyday haha. The tires are incredible but I am obviously looking that will have a higher treadwear rating rather than the 180 UTGC rating they are now.

DavesZ#3

iTrader: (26)

Don't put too much stock in treadwear ratings, especially for high performance tires. It's all about how you drive them and to some extent, what kind of alignment you have. I just put a new set of PS2s on the front of my Z. The first set only lasted me about 10K miles, the second set over 21K miles. Both of them had numerous track days and aggressive cornering as my daily driver.

The only real difference over the life spans of each set was frequence of alignment, less toe-in setting and more camber. The first set corded on the outer edge and the inner treadblock still had good siping (grooves). I switched to zero toe-in, bi-annual alignment checks and increased camber to -1.5º. The second set just started cording on the inner block and the outer block was worn down to the point of no siping showing. I got double the life out of them.

nismomike

iTrader: (9)

I'm intrigued by this. I went wider, as per my original post, but Firestone/Bridgestone told me to keep my original factory spec on the alignment. Should I not do this? What do you recommend on 265/40/18 front and 285/35/19 rear? Stock suspension, I don't plan on changing it as I feel its low enough and stiff enough for me. Should I do what you mentioned just before? I would appreciate any input, even now, as I would hope to get the most life out of these awesome tires.

scotts300

iTrader: (46)

Consider the 295/30/19 rear? Then you could run the larger, lower profile, front. I like our front 265s. Only 0.7" taller in the rear. Or a 275/35/18, which is only 0.4" different.

DavesZ#3

iTrader: (26)

My alignment changes were to affect handling only, the increased wear of the front tires was just a bonus. By all means keep the stock alignment settings, even on wider tires. I've heard it both ways - you do need to get your car aligned when you change wheels/tires or you don't need it. Not sure which one is true.

I'd certainly recommend to anybody that you should get your cars alignment checked at least twice a year, especially if you drive on bad roads. The toe adjustment seem to get knocked out very easily. That will certainly affect wear on the front tires.

That's one thing that Nissan got right - the 265/285 combo on the Nismo. My setup is 255/285 and I feel that is just about perfect. You can't really fit much bigger than that without worrying about rubbing or making the jump to even more expensive tires. You've got a lot of tire for traction, enough width variation to maintain the safety of some understeer as well as the aggressive look larger wheels and tires.