Originally Posted by avsbmw
Randy... Very interested in this set up. I am running my arc-8 track wheels as my street setup and will be changing up my track set up.
265/35/18s square set up with some camber plates on H&R coil overs would work right?
A 265/35/18 square set up on your Z4 is very doable with the required negative camber in the front. Depending on the type of tire you end up using we like to see at least -2.5 degrees of camber in the front or maybe more if you are using a wider extreme performance or R compound tire. Additionally a small 3-5mm spacer may be needed for the tire to clear the strut tube. Before installing the wheels we also recommend checking clearances against your H&R coilovers. Sometimes the ride height adjuster and spring need to be adjusted up to make more room for the wheel and tire. Otherwise you will need to use a wheel spacer to for added clearance.