same overall height as factory contis...

Think I can get them over a factory TC rim? What kind of spacer do you think I'd need, my 245s are at the hair's breadth of rubbing now.

 

255/35/18 is meant for a wheel at least 8.5" wide. T/c wheels are 7.5. 235's will fit the wheel well.

 

There is somebody on this forum that has 255/35-18 on factory rims, but i don't remember who. If you search the thread, you will find it, he also got pix of them. For sure at least an 18x8 rim is more appropriate for that kind of size.
As someone stated above, for that measure a 18x8.5 rim is much better anyway. Once you install them, let us know if you're rubbing

 

It's not just rubbing you're gonna have to worry about, you're gonna have so much tire bulge that the tire is not gonna sit completely flat on the ground. You're gonna hurt grip more than help it with tires that wide on such a narrow wheel.

 

Pretty sure shibito had 255's on his

 

It also depends on the brand of tire.... Shibito on here had 255/35/18 on with stock rims with no problems.

Lol beat me to it. :p

 

bfg kdw2, I've run both 235 and 245 on factory rims, 245 had just a bit of abnormal wear on the inside shoulder but my camber adjustments would point out to you that's probably normal. you certainly couldnt run a dunlop or pretty much ANY all season at 255 i think.

I was just curious if anyone has done it yet, I think I won't rub, 245 doesn't rub on mine. Worst case I'll move up to an 8 inch rim width. Are we sure it isn't 8 inch factory? I never bothered to check but they do seem wide.

 

its all about brand. i've seen 255s of one brand that are no wider than a 225 of another

 

well, next set ill try 255s and if after the first rotation they wear shoulders and not evenly, then ill step up to a 8 or 8.5 rim, no problem.

 

Time to step up to a big boy wheel, Army. https://www.cobaltss.net/forums/auto...rrived-242175/

 

Really? 255 are supposed to be over 1 inch wider that 225

So you think a 245/35 on a 18x8 rim would be fine?

 

ive ran set after set, this next set being my 8th set, thats 1 set of contis, 1 set of 235 KDWs and 5 sets of 245 KDWs all on factory rims.

 

I think you'll get much more grip out of any of the extreme performance tires in a smaller size over a 255 kdw.

 

How is the difference in grip as far as traction with those 245 KDWs compared to the stock tires? How much is a set of those?

 

night and day for real. I was still at stock power when i made the move to wider tires, but the grip was phenomenal from 225 contis to 235 kdw, and i cut another 1.5 seconds to 245 size

id totally agree if I was autocrossing, but my home track is a power hungry track that begs for long duration traction.

 

Holy damn!! Thanks for sharing the info. I have to get new tires for the summer and i was thinking of something like those

 

Does anyone know what kind of increase in traction i would get going from the stock 225 conti's to 235/40 Nexen N3000's?

 

Probably none. The Nexen's will have a harder rubber compound.