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Old 09-12-2014, 08:32 PM   #23 (permalink)
RustyLugNut
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That is due to the relatively crude applications.

Quote:
Originally Posted by oil pan 4 View Post
Water injection on gasoline engines for fuel economy is another one of those mods that works on the lab dyno but seems to just about always fail to make the transition to the real world.
Digital feedback water injection systems could net you numbers similar to what T vago found. However, the costs would be out of proportion to the gains. EGR control is far more economical and that is what is used in the preponderance of vehicle applications.
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