I have the 18" Carrera lightweights, and am wondering how far I can space the rear wheels out. Rears are 18x10 w/ 285/30 tires.
I know I can go 15mm in front, but not sure what the safe distance is in the rear. Using a straight-edge and ruler, I have about 3/8" gap from the outside tire face to the inside edge of the fender.
I will be dropping the car about 1" very soon w/ new suspension, and I decided to stick with my current 18's and not upgrade to 19" rims.

 

You can go 15mm in the rear too...

There is a guy on the board who has 15 all aroung with that tire size and claims that that is the safest max distance...

 

Now that would be cool. Yeah IIRC I think I saw that thread too but could not find it.

15mm translates to 0.59" - Seems like it may in fact work but hopefully someone who has done this with my particular wheels can chime in before I buy the parts.


EDIT: I was reading a forum post over at renntech from someone with a 2002 C2 w/ 18x8 and 18x10 Sport Design wheels.
He's running 18mm rear and 15mm front spacers, X74 kit, no rubbing.
Tires are same as mine, 285/30 rear and 225/40 front.

Will this setup work with my 18x10 and 18x8 lightweight wheels? Any diff in offset between mine and the Sport Designs?

 

IMO...I say lower it then see what you have to work with

 

I am lowered and have 15mm in back and no rubbing...As for your wheels, I cant say unless they are factory offset