I just found a link that has tire heights and its says the factory tires 215/55/17 are 26.31mm I guess tall. A 235/45/18 tire will be 26.33 tall, being on an 18 wheel does that imply that the actual height of the 18 setup will be 18inches + 26.33 tall as opposed to 26.31 + 17 inches tall on factory. I really want a slightly larger setup so my wheels and tires fill my wheel wells alittle better.
Jtspea2

 

You wont be able to tell you're running 235/45/18 all around unless they are reading the size on the sidewall. The .5 inch difference will not matter much when the tire is mounted.

My wheels are powdercoated in the center and polished on the lips. I had it re-done after running stock finish for a while.

 

How as the finish worn, I am in the process of getting this done but with a slightly darker gunmetal powdercoat in the center. How does the polished lip look in the long run.
Thanks
Jtspea2

 

Like any bare aluminum, it will need maintance. Perhaps a regular coat of wheelwax would help keep the shine longer

 

I usually keep the lip polished with mothers aluminum polish and a coat of wheel wax to protect it. It's not really wet to california so the chances of rust is next to none. The powdercoat I got is quality work it's still shiny and sick like the day I got the wheels back.

A quality paint job is a quality paint job; with proper normal mainteanance, it souldn't wear, fade, or crack at all.

 

Will 245/45/18 all the way around work? without rubbing or would I need to roll the rear fenders. There are more of this size available.
Thanks
Jtspea2

 

that woud work. I'd have the rear fenders rolled just to be safe. I rubbed on hard turns when the fenders weren't rolled.

 

Would running that size tire on all four corners negatively affect performance? Would I be better off running a staggered setup or a smaller tire 245/40.
Also what tire would you suggest for wet and dry performance.
Thanks
Jtspea2

 

^ No will not affect it and you most likely wont feel it. I'm running 245/45/18 all around now.

As far as brand and model...look for your prefrence (grip, tirewear, quiet,) etc, and do your research on tirerack.com

as far as 245/40, its going to be lower profile so you better have a drop to accomodate the gap. lower profile also = harsher ride and more prone to pothole damage. UP to your preference once again.

 

would that .5 width make a diffrence when you rotate the wheels?

i'm thinking of getting track wheels for my X and i wanted to rotate the tires... would having in the front mess up traction/ grip in any way. I know it makes more sense to run teh 8.5 in the rears but what if its the same tire size .

 

OH....it changes everything that you have an X. I seriously would just run same rims all around on the X.

you know Sean (SXCXEX) has a set of track wheels nonstaggered for sale right

 

Gsedan, how light are those compared to g37 19s cause i Feel a pretty good difference goin from stock 17s to 19s.

Im thinkin about gettin these to switch around sometimes. Ima get after sum nice light oems.

 

these wheels are 18.xx lbs front and 18.xx lbs rear. SUPER LIGHT

 

i know he DID have them, sold now but either way he doesn't want to ship so yea... i would of jumped on it when he had them for sale, but local pickup would be a JOURNEY for me chicago to cali and back.