Well guys in my venture for the perfect fitment, I have made a sheet to calculate fitment.

PLEASE NOTE: This is for Flush fitments. (The outside of the wheel meeting even with the sides of the car, specifically at the top of the wheel arches. You will need a stretched tire or a slightly higher offset (+5-6mm) than listed if you are lowered and need to tuck.

Also, these measurements are based on the "UK Spec" Camber adjustments of -2* Front and -2.5* Rear.
As all wheels and tires differ slightly, it may be a safe bet to aim for slightly higher offset regardless (+5-6mm) to ensure clearance, then use spacers as required for the PERFECT fit.

You can see calculations for a stock S2k on my site or download the Sheet to input your own custom flares.

http://thechazz.com/?p=4567

or download the spreadsheet directly here: http://thechazz.com/wp-content/uploa...06/offsets.ods
Use Excel or OpenOffice.org to open the file.



If anyone here can convert the sheet to a web form, Ill be happy to host it.

 

Interesting. I'll have to play around with this later.

 

Sure thing

It should be pretty accurate. Figured at -2*F and -2.5*R camber also.

 

obviously, flush means different things to different people. are these calculating appropriately-sized tires to match the rim diameters?

 

By Flush I mean The face of the wheel is flush with the side of the car. Ill add a note to the OP to define.

You could still use an appropriate width tire on a flush fit wheel for a non-slammed car. As long as the fenders are rolled, the natural camber process that occurs when the suspension is compressed should clear the tire. However, I do recomend a slightly higher offset to be sure, you can always use a thin spacer to bump it back out if you have room.

 

yeah, i'm trying to find an optimal setup in the 17" rim category, but hard to find 10 or 11" one-piece rims Might have to get ccw's.