Well the comparisons to street tires are out the window since 245 A6s are wider than street tires and have a different profile and everything. I think I have heard that the 245 A6s can occasionally rub the fender liners even at stock offset, so you may be increasing your likelihood of this happening. I can't be sure though, so I'm hoping someone with autocross experience on those tires can chime in here. I would suggest posting in the autocross forum as well, and possibly even post over on sccaforums.com.

Cheers,
Ken

 

That's the same conclusion I've come to Ken. I'm in the process of sending them back to have the offsets double checked and whatnot.

Great, informative thread, and thanks for looking after it Ken.

 

I think I'm confusing myself, so I thought I'd ask here. It's a 2 part question.

Here's what the original post says (I only pasted what applies to me):
For the front:
7.0

 

No. The wheel is not what rubs the fender. The tire does (usually the edge of the tread). Since the offset of a wheel is measured from its centerline, changing the width of the wheel doesn't change where the tire is located relative to the fender. Only the offset changes the location of the tire. This is a very important point that many folks don't realize.

I'll say it again. The width of the wheel doesn't change where the tire sits. Only the wheel offset changes the relation of tire to fender.

That said, you don't want to use your chosen tire on a wheel that's way too narrow or way too wide. But there is a range of wheel widths that will work for any given tire. You can go to the spec sheet for any tire and find the recommended wheel width range.

Be weary of any offset calculator that doesn't factor in tire width! Again, what rubs the fender? The wheel? No... the tire.

[QUOTE=Eclypz,Mar 22 2008, 09:53 PM]Am I way off course?

 

From what I've read, and I haven't read all of the posts, I will be safe with a set of 17x7/8 +48 front and a 17x8.5 +48 rear using factory size tires...am I right spa-zz??

 

Yes. That's close, but should fit.

 

Hey Guys Im trying to figure out the offsets I want to run but none of the offset calc links work. I will be running some crazy offsets so I want to get all the measurements done right before I order the wheels!

I also have a question about camber:

I think the fronts max out at -2.5
what do the rears max out at? (i've heard -3.5) but I am uncertain! any help?

Thanks,

Mike

 

Well, you don't really need an offset calculator; the information in the first post should tell you what you need. However, I can't tell you how much more clearance you'll get by adding tons of negative camber.

 

17x9.5 38offset all around ...
.tires 225 40 17
rear..245 40 17
enkei rpf1







Dorby no busssheet

 

Well that's not what this thread is about. Looks like your front fenders are pulled, is that correct? And a bunch of extra camber in the rear? That's not what I call "fit"... but to each his own.