i am looking at getting a set of wheels for my S. as you can see, i am new to the forum and am unsure of wheel offset issues, so any and all help would be greatly appreciated. i want to run 17X7 5-114.3 43BR front and 17X9 5-114.3 17BR rear. will this setup work without rolling the fenders. I am also planning on running Azenis rt615 205/40-17 front and 255/40-17 rear for tires. thanks for the help!

 

The fronts will work with a 225 but the Rears WILL NOT work at all.

**this is of course you are stock heigth**

Start off by looking into a wheel that is at l least a 4x higher that you posted above for the rear to run the correct tire sizing. Although, you can go with a lower offset, but you will be induced to smaller tire sizing which will lose contact patch you give to the ground. Just a thought.

 

look at the wheel sizing thread.

 

for what car?
maybe he's talking about a different car... (wrong forum?)

 

https://www.s2ki.com/forums/index.php?showtopic=342793

please do not put a 205/40 on the car.

 

Nope, im in the right forum. I have a 2001 Silverstone S2000. It is currently stock ride height, however i do plan on lowering it an inch or so.
I looked through the wheel fitment guide, and could not find out why i cant run a 17x9 with a 27 offset in the rear. Also, why cant i run a 205/40 on the car. I am new to the game as stated above, and would like a little more info. I am VERY confused on the whole offset business. thanks!-matt.

 

Those rear wheels will stick out almost 50 mm further than stock, and the tires will rub against your fenders with the slightest suspension travel they will not work no matter what you do to camber, fenders, etc. You also want to keep the O.D. (outside diameter) of your tires the same front and rear and those front tires would be significantly smaller in diameter than the rear. Also the width difference between a 205 and a 255 series is quite significant and will certainly result in understeer.
Those wheels will not work, neither will that combination of tire sizes on other wheels that would fit.
Perhaps you should hold off on changing from the stock sizes until you have a better understanding of these concepts.
Better?

 

[QUOTE=CaptainMike,Apr 26 2007, 11:34 AM] Those rear wheels will stick out almost 50 mm further than stock, and

 

The 'series' # is a percentage of the width i.e. a 245/50/17 has a sidewall height that is 50% of 245 mm (122.5mm)
Great tire info @ TireRack <-Link

So a 205/40 has an 82mm sidewall and a 255/40 has a 102mm sidewall height; multiply both of those by 2 and you get a difference in O.D. of 40mm. pretty significant IMO.

So if you want to run a 205/225 combination you probably want a 205/45 and a 225/40 or maybe a 235/40 which as about as wide a set of tires as you'll be able to go with those low offsets.

From the wheel fitment sticky (which is pretty conservative):
4. What fits?

Many people have tried many different wheels and tires on the S2000. Along the way, a lot of people have had problems with rubbing. Some had a little rubbing, and some had none. With all of this experimentation, a few things were figured out. The information below is not the drop dead final word of what will and will not fit. Certain things can be done to make something fit that otherwise wouldn't, such as increasing negative camber, running narrow tires, and rolling fenders, but that adds a lot of variability to this equation and thus is difficult to predict. We'll assume the owner has had a proper alignment, uses tires recommended for the chosen wheel width, and hasn't modified their fenders.

Based on successes and failures from many S2000 owners, we can use an offset calculator to figure out what other offsets and tires will work. These are minimum recommended offsets. You can use a higher offset if you want, and you will get additional fender clearance.

For the front:
6.5

 

thanks mike, i appreciate the help!