after day at coast coming home i took the r33 gtst upto bout 165mph, no probs, onarriving home i felt slight missfire on tickover, it was late so, in morn i lifted hood finding oil all over,,, dip stick popped out. bout just over a litre of oil had been lost, topped up oil and no probs, next day it started smoking as pulling away then progressed smoking through gears, Any help or ideas would be appreciated. AFTER THOUGHT: cars performance was not affected,

White smoke is water my friend - NOT GOOD.

have your turbo removed and checked sounds likes it on its last legs

started stripping all turbo pipes off, all full of oil? turbo seals?

Yep!