what is the worst thing that could happen if i put this size tire on?
225/45/17. i found 4 snows on nice chrome 5 stars for 300 clams.

 

Use this to see different tire sizes

http://www.1010tires.com/TireSizeCal...?action=submit

 

Your circumference would be about 4% smaller, which will cause your speedometer to under-report your speed. At 70 mph, the speedo will report 67 mph. Bear it in mind if you normally drive X mph over the limit, as you will be 4% + X over the limit so could be more likely to get a ticket.

Tire diameter will be 1" smaller, so your axles will ride 0.5" lower, reducing your ground clearance by 1/2 inch from 6.3" to 5.8". You could bottom out a lot easier on rough roads and the end parking curb things in parking lots. That probably also makes it easier to damage your intercooler. It makes it easier to bottom out if you are driving over several inches of snow (which seems likely since winter tires are presumably for snow...)

There could possibly be TPMS issues, but I kind of doubt it as long as you maintain close to the same psi, transfer your sensors to the new wheels, and reprogram if necessary. The volume of air in the tires will be different, but I don't know how to determine the most appropriate volume per axle. Not knowing any better, I would probably run at the same psi, or slightly less, since the volume is smaller.

I would guess the biggest factor is making certain that the wheel fits over your front brakes.

Since the vehicle will ride lower, I would think it won't adversely affect cornering. (As opposed to a higher ride is easier to tip over zipping around a corner.)

I don't know the correct terminology, but you want positioning on the axle that matches the stock wheels... I don't know a whole lot about it except that when it's wrong it can result in excessive stress on the wheels and/or axles. But I'm sure someone else here knows what to look for.

 

You should be fine.

The speed will be off just a little. As long as you TPMS sensors are for yout system they will work.

As for offset you can give or take a some with no damage. The guys who radically off set a wheel are the ones who kill bearings or break wheels. There is some give and take the factory allows for just nothing way out.

Handling will not be effected much as the SS is well sorted and the size is not that far off. I have 16" for winter tires and I lost a little turn in and gain a little better ride. Handling is very comfortable.

 

$300!!!!
not bad. kumho winters are about 80% one the front and about 35% out back. they'll last the winter.
the rims look great a little paint flaking but who cares.
thanks for all the help.

 

Man that is one thing I do not miss about Chicago. I've still been using my A/C occasionally down here.

 

i kind of like the fresh spring time though.
of course i'm only saying that because im in it and i'm trying to make myself feel better about it
whats the weather doing there?
we're about -30 c with the wind chill