There is some smoke, blue type, when I press the clutch or give it som throttle after long downhills (the one to two minutes type), foot off the pedal. Seems worse when the engine is cold. Also when the engine is not completely warm, when in neutral and I rev the engine, then let it rev down, and then rev it again, some blue smoke appears.

The engine is not using much oil. After three track days the oil had just sunk from the highest mark to the lowest of the MAX marks.

The compression ratio is the same on all sylinders and seems high enough, about 150 PSI on a cold engine. The plugs are not far from perfect in appearance. Is it leaking oil through the oil control rings, the stem seals or the turbo?

 

sounds like it could be your turbo,mine was doing the same kind of thing and the turbo had a small crack in the housing.

 

sounds like your turbo on its way out

 

There is no smoke when accelerating slow or hard under normal conditions ( not after a long overrun). There is no smoke when i press the accelerator after a short overrun, like 20 seconds. There is no smoke during the overrun.

 

sounds like oil valve stem seals to me

 

dont think it's the valve stem oil seals as these usually only smoke on cold start up!

 

I'd almost put cash on it beint the turbo. Our FRST smokes like biatch for about ten minutes and then doesn't do it again even if you spank it. Ah well good excuse to T3 it I spose