i ran 195 50 15's on 7x15 wheels with an et of 13 and had to roll the arches and cut the trims to stop them rubbing even with a fairly conservative (by dub standards) drop, with 8s and near enough the same offset i'd expect all manner of trouble even with stretched rubber- and thats a ridiculous stretch by the way, it will upset one of the all time greats of hot hatch handling and look gayer than showertime in a prison. don't do it!