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An engine with working separate oil injection is probably a good platform for experiment with direct fuel injection like the marine V6 I described above. By delaying the fuel injection until the compression have just begun I suppose a two-stroke could be similar in efficiency compared to a four-stroke. -Lubrication oil consumption excluded.
I guess it may be recipie for disaster to experiment with separate oil injection from scratch, at least without a similar engine with such a system to look at. Or is it perhaps quite simpe? -Just install oil injectors at strategic points found on another engine and calibrate the oil pump to give the same ammount of oil as drawn by the fuel. This means the engine will consume exactly twice the normal ammount of oil during the calibration. In the end only piston wear can tell...
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