oiseautempete wrote:The purpose of the water injection in the engines of 39-45 planes was to cool down to avoid knocking when operating at maximum power or in "boost" mode (increased boost pressure) ...
Water in a 2 step: blah, because water + oil = mayonnaise = rapid blocking of the segments ...
I suppose that the mayonnaise is not created in a few milliseconds, that does not mean that the water improves the lubrication of the high engine and the low engine too.
Also in karting, the low engine does not appreciate at all the joke of eating water. If you have the means, a race underwater = a low engine to do again .... if you don't want to break everything at the next opportunity.
In principle, injecting water vapor, like that produced by a Gillier Pantone, seems very favorable to help homogenize the charge (very inconsistent between the gases burned in quantity and the fresh charge at the perfectible dosage).
There remains the problem of knowing where to inject this vapor. Under the piston, the low engine will not appreciate so much. You can inject water (not cold) into the cylinder head a little before top dead center (expensive and not easy ...).
We can also invent a dedicated transfer which does not pass through the lower engine to convey the steam for example in the direction of the cylinder head (as the 5th transfer will do on the improved Schnurles). I suppose that the development should not be convenient (possible tightening if the water arrives in liquid form ...).