Quote:
Originally Posted by teoman
Water injection reduces NOX. I am not sure if it is just the reduction in temperature or some chemical reaction, but I wonder if injecting it in to the exhaust would have any use whatsoever.
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I've heard that too.
My understanding of how it does this is simply by reducing the temperature of the combustion chamber. I don't think it would do anything but make steam come from the exhaust :-) Somebody could report you for having a smoky car :-(
As I understand them lean-burn engines is that they are mechanically-reinforced engines designed to operate at higher temperatures and pressures than 'normal' engines. The unfortunate chemical result of this is higher NOX levels which makes nitric-acid that kills forests.
Filling up with water is a bother. I was running 50% water and 50% fuel which meant carrying around 20L of water and filling that twice as much as I was filling the fuel. General consumers wouldn't go for that.
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2003 Renault Scenic - 30% more power with no loss in fuel economy.
1991 Toyota GT4 - more economical before ST215W engine-swap.
previous: Water-Injected Mitsubishi ~33% improved.
future - probably a Prius
