Originally Posted by EquipoiseExotic
Front wheels are 18x9 + 42 with a 245/40/18 tire.
Car has to be slammed on KW V3 coilovers.
Whats is the smallest spacers that will allow me to clear the coilover perch without poking too much in front.
Basically, I wanna run low, So I need the perfect compromise between clearing the perch and the fender...
No camber plates involved.
5mm is usually a safe bet to clear the perch, but I think the problem is your tire choice. 245/40 is really tall compared to the stock 255/35 (about 0.6" taller) so you will most likely rub on the liner, especially w/o camber.