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A4tsleeper
03-23-2009, 08:27 AM
I'm looking at running a 17x8.5 front and a 18x9.5 rear is this posible? Please help

myers1.8TQ
03-23-2009, 08:34 AM
Possible, maybe. Should you do it, no.

Dan[FN]6262
03-23-2009, 08:34 AM
it'll probably fuck your shit up hardcore. cause of it being a quattro you have to have the tires the same size or it'll chew your differentials up

it would be like lowering the gearing in the front and making it taller in the rear. and the center will be like WTF?

but since it is torsen..... hmmm.... try it and tell us how it goes

im jk. dont

A4tsleeper
03-23-2009, 08:52 AM
Yea wasn't sure if I could mess with stretching the rear tire and making the front to be the same rolling distance.

buck
03-23-2009, 09:22 AM
as long as the wheel circumference is the same...

but why

http://home.fuse.net/fastmonte/DigitalRaceCraft_MuscleCarSunday.jpg

http://www.mustangmods.com/data/5100/mvc006s.jpg

elwigglero
03-23-2009, 09:25 AM
You'll ruin your diff the same day you install your tires. It will literally take only a few miles with that kind of a difference.

A4tsleeper
03-23-2009, 09:25 AM
The wheels are free off of my brothers car. That's why I was thinking about it.

myers1.8TQ
03-23-2009, 11:51 AM
The wheels are free off of my brothers car. That's why I was thinking about it.

Take them for free, sell them to a bimmer owner, and buy something else. : )

B5A4Kevin
03-23-2009, 12:11 PM
^^ sounds like the right idea to me. you can do it but like everyone else posted, the total circumference/diameter must be the same at all 4 wheels. since the aspect ratio is a percentage of the width of the tire, youd have to run like 235/45s up front and 255/30 in the rear. dont quote me on that cuz i havent done the math, but it has to be the same all around.

njm23
03-23-2009, 12:23 PM
It has to be within a 3% difference or so..If you can match the rolling diameters, I dont see why not. Next question is fitting the 9.5 rear, but regardless, everyone just jumped down your throat telling you not to do it. Staggered setups can looks good, and dont mess up the awd system if done correctly.

A4tsleeper
03-23-2009, 01:52 PM
Offset is 56 front and 61 in the rear and I have to get adaptors to run them.

A4tsleeper
03-24-2009, 11:50 AM
Would a 245/45/17 fit up front?

B5A4Kevin
03-24-2009, 12:03 PM
iirc 235/45/17 with et35 fits all around, but barely in the rear. check out the wheel/susp thread in the faq section to be sure.

jrodmk2
03-24-2009, 01:34 PM
are you runnin a set of vette wheels? ;)

Lazer Viking
03-24-2009, 01:38 PM
staggered widths can do, staggered diameters hell no

myers1.8TQ
03-24-2009, 01:45 PM
staggered widths can do, staggered diameters hell no

If you like more understeer, sure.

A4tsleeper
03-24-2009, 02:12 PM
If I ran a 245/45/17 on the 17x8.5 and a 245/40/18 on the 18x9.5 the difference is only 1mm or 0.2%. witch is like a warn tire.

black99.5a4
03-24-2009, 02:16 PM
those offsets are too deep.. mine at 48 hit the spindles. with my rear 10mm spacers, i have a 38mm offset.. you will need to get to that area or you will never move the car.

then at that point, you're still so close, that a 245 is liable to hit, my 225's are VERY close.

in the end, do you really want 3/4 to 1" spacers?

A4tsleeper
03-24-2009, 02:32 PM
The adaptors would be 20mm to 25mm

Lazer Viking
03-24-2009, 03:29 PM
The adaptors would be 20mm to 25mm

which converts to 3/4 -1" boss

alen
03-24-2009, 04:46 PM
So all you naysayers still claim that he'll mess up the torsen if he matches the tires so that the rolling diameter is the same?

A4tsleeper
03-24-2009, 05:01 PM
which converts to 3/4 -1" boss

I know this I was just saying adaptors start at 20mm.