[mpgmike]

About 20 years ago I played with several different water injection strategies. I found the best was a bubbler that bubbled the PCV gasses up through a stainless steel pot scrubber (actually several). This first removed the oils from the PCV gasses, and added water vapor to the intake charge.

I found an old '70s era Edlebrock electronic water injection system. That was almost as good as the bubbler trick. However, all attempts to spray water mist into the engine seriously hurt fuel economy.

My previous research strongly suggested that water created more pressure than nitrogen at the same BTU input by a factor of 12, and that CO2 created even more pressure. You are stating that I may need to go back and re-research that. I love a challenge! Thank you. I will see where I went wrong.