Quote:
Originally Posted by Emmerich
Water injection has been used for a long time on high compression motors to help with low octane fuel. It tears up the motor pretty good in terms of corrosion in all the wrong places.
Explain exactly how you can do a 6 stroke motor without cam mods. What are the valves doing during the extra 2 strokes? They are compressing which is using energy. 6 stroke = bad idea. If you wanted something like that you should look at a rotary engine......
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At the end of stroke 4, the piston is quite hot, the exhaust gas has just been expelled. Both valves remain closed for stroke 5, no air is added, only an injection of water. It turns to steam and powers the piston down. Stroke 6 is just like stroke 4, the exhaust, this time only water vapor is expelled. There would have to be a double lobe on the cam for the exhaust valve(s). In fact, strokes 5 & 6 would be just like strokes 3 & 4. The cam would move once for every 3 rotations of the crank.