http://www.sportcompactcarweb.com/pr.../0404scc_350z/

I dont know if any of you have read this, but they use a 275/275 combo. thought it would be nice to go with for tire rotation. I have hotchkis sways, can i make this neutral, or should i step the back up to a 295 and say screw tire rotation. Thanks for your imput anything about tire size will help my desision.

 

I have the 275F and 295R combo. To run a 275 up front you have to have a perfect offset if you are lowered. You will need a 9" +29 - +31 for it to work and not rub on the outer fender. 9.5" won't work in any offset.

A 295 rear will work with a rolled fender lip. I think the limit is a 295 on a 10" rim with a +25 - +30 offset. Anything more agressive and the tire will rub on the fender.

JET

 

Suby dude is running 18x9.5 with a 30mm offset front and rear with 275 front, and 295 rear, no rubbing. had you read the link i sent you might have picked up that they ran a 9.5 with a 30 offset on there car, its close but no rubbing.

 

There are quite a few of us running 275/35 front 275/40 rear on the Nismo (and p45) 18x9.5 +30s. No issues with VDC/TCS, no rubbing, and the car feels balanced.

I just did a side to side remount rotation at 10k miles and I probably only have another 10k left, so no more rotation will be necessary.

Chris

 

yeah now i wont have to replace the backs all the time, plus with my sways i should be able to acheive ballence, i think ,my braking will be insain, right now the tires are the weakest link in braking.

 

sorry to hijak, but why the different profile?

 

I read that article. 2 years ago and have read it countless times since. If you actually read my post you would see that I said "lowered". This is not speculation. This is fact. I have a 275F on a 9" rim with a "22 and it rubs. You get whatever you want. Enjoy!

JET

 

his car is lowered 1 inch no rubbing.....mabey the offset has something to do with it. you said 9.5 wont work in any offset, they run 9.5 in that article. with a spacer to = a .30 offset, im sorry i assumed you didnt see it, my fault, no hard feelings.

 

are you a pilot btw
my dad is cheif pilot of United, and i was thinking of joining thr air gaurd, to be a fighter.

 

Quote from the article.... They are running a 9 +30 and it rubs on the inside a small bit. The car in the article is not lowered.

I am speaking from my own experience. My front is lowered 1" and rubs with a 275/30/19 on a 9" +22. I had the car on the lift the other day and looked at the distance I had to move the wheel back and a +29 or 30 would work on the inside and outside not to rub.

Yes I am a pilot. No hard feelings. You're dad is in Denver?

JET

 

a 9.5 +30 offset is 2mm more tucked in than 9 +22.

a 275 on a 9 will bulge out more than on a 9.5 so the tire may protrude more than just the 2mm.

 

A 9.5 +30 won't clear the inside suspension upright. As you can see in the article a 9 +30 rubbed a bit.

JET

 

This is a pic of my car with 9.5 +30 Nismo 18s with 275/35R18 and I have never rubbed anything. I originaly got the idea from Tony at performance who got the idea from one of the Nismo guys in Japan. (see purple Z below)



Chris

 

Here's a 275/40/18 on a 9" +30. How can your's possibly be a 9.5! an 8.5" maybe? Also your using a 35 series which is 1.08" smaller diameter than a 40 series which is the stock diameter.



JET

 

From the above article
A 275/40 will bulge more on a 9" rim and maybe the rub due to deflection or possibly brand variance. I know that 235/50R17 RE040s on 8" wheels are wider than 245/45R18 RE040 on 8" wheels.

Yes, the diameter is smaller than stock but only oh so slightly.
When I measured them the stock 17s were 25, stock 18s were 25.25. and the 275/35 was 24.95.

The tires on the left side went on my car when the tires on the right came off.



This is a picture of a 275/35 mounted on a 9.5 Nismo rear wheel that I then put on the front of my car. 275/40s went on the back to keep the stagger the TCS likes. Actually, the TCS has been less sensitive with this setup and lets me get the car much more sideways before interrupting me.



Chris

 

OK.... I'm confusing myself here. Let me get my act together. The 275/40/18 tire they are running in the article is the incorrect size. I don't know why they decided to run that tire. I just realized this. My appologies. The 275/35 18 you are running is actually the correct size as is the 275/30 19 I am running. Is your car lowered? My 9" +22 hits on my 1" lowered front and your only 2mm retracted than I am. I don't think that would work either.

JET

 

It is lowered, but only slightly on S-tech springs. I drive the car hard in the mountains and need all the travel and tread I can get. I wish I had pics of it but it is in the body shop getting the back bumper fixed (yeah, I was parked in the middle of nowhere and somebody tried to park next to me).

I know what you mean about getting confused, sometimes the numbers and whatnot get thrown around so much that it can be hard to remember what way is up.

And yeah, I don't know why they went with 275/40 all the way around. Especially because they went with different rims so they can't rotate them without dismounting anyway.

It is still a fascinating article, I am glad SCC actually does more to try and get performance out of their projects than just bolt on parts given to them by their sponsors like some magazines (cough, Modified, Import Tuner).

Chris

 

Wait so even if i go 275 all around, i wont be able to rotate them, what can i do so that i can for sure be able to rotate them, BTW i allways drive with TCS off. Allways, mabey once or twice iv left it on in the rain.






he is the cheif pilot in NY but he was just out in denver, do you know him or are you just from denver.? Bob Spielman

 

Anyone? Is there a way to use 275's on all four, and be able to rotate them, i hope i dont have to make a whole nouther post just to pick up where this one seems to be leaving off.

 

Sure, just make sure the wheels/tires are the same size and you will be fine.