Lowest setting at the back - 85mm + and around 85-90mm + at the front!
Never measured it though!
. thats low 

but they still might look a bit lost.....
i knw the post was about 8" alloys but i have 7.5x17" and im running the standard 205/40/17 on the front and 215/40/17 on the back....at the mo it looks quite wide! so will look better with hub-centric spacers! instead of the 8" try to find a balance with the 7.5 setup? Btw will there be any issues with having 215's on the back and winding it all the way donw on coily's??