hi im in process of swapping my focus for a escort rs turbo running 180 bhp with fast road cams t3 tubro with 31 actuator but the rs is smoking through gear changes in lower gears, but is ok on high boost. i imagine this is likely to be down to valve stem oil seals as the current owner thought it was the t3 turbo so had it reconditioned but says the same fault is still occuring. just wondered if anyone knew of any other things that may cause this? cheers tim. hope this is all it is!