Quote:
Originally Posted by dr249
So you think normal engines are running richer than stoich in order to protect the parts from over-temperature? If that is the case it would be interesting to substitute something cheap like water instead of the extra fuel (water also has an extremely high latent heat of vaporization so less water would be needed than the extra fuel). Either that or somehow provide the necessary cooling without hurting efficiency. I've heard of water injection before, maybe that's what they were doing but I thought it was knock prevention so they could run higher compression ratios and get more efficiency and power that way.
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Mercedes is supposedly working on a six cycle diesel which uses water alone as fuel on the fifth cycle.
I'd just like to figure out how to rig an exhaust heated water injection system which would fire a metered amount into the jugs with the fuel air mix...betcha I could gain a 20-30% increase in fuel economy easy. (The only real question is can that lil six handle it.)
