Is it ok to run 18x9.5 tsw snerretons on my quattro. Or are they to wide.

 

to my knowledge you should be ok. only thing that damages the quattro system (if it even does, some think it doesnt) is different diameter tires. if they arent within 2/32th's of each other it supposedly damages the system because the wheels would be turning at different speeds.

 

^^^ yeah hes right. so unless ur running something like 19s in the back and 18s in the front you shouldt have any problems. unless ur car is lowered in wich case you will probably rub... unless you get spacers (depending on offset)

 

I'm pretty positive you have no idea what you are talking about. Why would you recommend spacers to someone if they are already rubbing? That will only cause them to rub more. The only way to get rid of rubbing is raise the car, play with different tire sizes and/or negative camber. And as far as mismatch wheel sizes, read below.

You can run 18's front and 19's back on a Quattro car if you wanted to (I don't know why anyone would because it would be God awful ugly), but you must have the right size tires. Rolling diameter is key, you must keep it within 3% (some people say 5%, but I play safe) front and rear to not effect Quattro. Same thing goes for staggered wheels, rolling diamter is key.

So if you wanted to do the 18"/19" combo, you would run 235/40/18 front and 245/35/19 rear. I'm guessing you want a staggered setup because you aren't stuffing 9.5" wides up front. You would most likely go with 225/40/18 front and 255/35/18 rear because it is only a .24% difference. Or you can keep those fornts and run 235/40/18 or 245/35/18 out back depending on what look you want as both sizes are under 1.3% difference.

You can test out tires sizes using a Tire Size Calculator

My personal opinion, you don't want those wheels in 18". Wheels with a lip look at least an inch smaller in the face so your 18's will look like 17's. Get 19's and call it a day or buy a full face 18" wheel if you don't want 19's. Again it's just my personal opinion, if I did 18's then my car would be dumped, only way it will look good.

 

dont forget rolling the fenders

 

i was making the assumption that the tires would rub on the inside! not on the fender. thats wat i taught he was talkin about.... my bad.
i was also asuming that he would use the same tire size in the front and back. because it'd look pretty stupid imo if he used a higher profile tire in the front!
but i dont get this could you explain how staggered wheels would change "rolling diameter"???

 

My mistake, since the large majority of people have rubbing problems on the fender I did not take rubbing on the inside into account.

Staggered wheels change rolling diameter when they are run on their appropriate tire sizes, reason being the circumference, radius, and overal diameter are all different. The appropriate tire sizes means no stretched needed. However you do not have to run the appropriate tire sizes on a staggered setup, I don't but you have to be ok with stretching tires over a wider wheel. For example, I run 245/30/20 all around even though my wheels are 8.5 fronts and 9.5 rears. The rear tires are stetched an inch to fit, but the rolling diameter is the same all around and I have the extra clearance I needed in the rear with the big wheel back there.

 

lol oh I see!