PLEASE, 'Splain Me

[Fla._Deadheader]

 Not compressing steam, water vapor. That's why injecting at BDC is necessary.

[StorminN]

All you need to inject steam is an original early-to-mid 80's 6.2L GMC... if the heads aren't cracked yet (unlikely) take it up a big hill to heat it up and drive fast down the back side... this chills the heads, "crack" goes the little valley between the valves, and PRESTO, you've got steam in your diesel! Of course you can "fix" this by pulling the heads and sleeving them, but that takes the fun out of it!

P.S. I'm sorta joking, but even so, I've still have put about 700,000 miles on these motors over the years...

-Norm.

[flip]

If injecting is what you are going after, short of getting rid of your glow plugs and having a nozzel made for that port, along with the other complications, I don't have any good suggestions.  I did talk with a few of my techs here and they did think that the water mist in the intake would work, maybe not as well as direct injection but a heck of a lot less machining and electronic and injection devices.

[Dale Hatfield]

The currant method of water injection in diesel is  on the pressure side of the turbo. For example its onthe intake horn on my dodge after the turbo and intercooler. Its also a methenal injection system. Does it improve fuel milage no. A little bit more power. Big bennie for me is the cooling effect. It lowers EGT temps that can keep me on the go fast  for much longer on long hard pulls.  It has a computer controlled unit to allow  when the mix is injected into the intake.  If it comes on too soon or too hard it puts the fire out. dead in the water .
It only works under boost. not all the time.
Based on your info on the yota  it sunds like its a non computer controlled motor. The  best would be with a ecu ecm fueled truck something you could tap into.  A non comp truck would need a computer that controlled the injection at the correct timing.
Dale

[Fla._Deadheader]

  OK guys. I know about "Current" water injection.  That's NOT what I want to develop.

  When water is turned to steam, it expands 1400 times it's volume. I want to INJECT VAPOR at BDC so, when it turns to steam, it's AT TDC, AFTER the diesel fumes fire. This would be adding STEAM power to the Power stroke. Has nothing to do with putting out the fire of diesel, so to speak.

  Manifold injection is not what I want.

  Back to more thinking. 

[flip]

Yank the glow plugs and have some injectors made

[Fla._Deadheader]

 Flip, now we are back to my questions about gasoline injectors and electronics. 

  How do I start the cold engine without glow plugs  

  I think once you grasp what I want to do, WE can come up with the solution, EH  

[flip]

Gas injectors are completely out of the question because what you are needing to do is shoot directly into the combustion chamber.  No gas injector that I know of is able to withstand the heat or combustion pressure in the cylinder.  Now, if you allow the piston on the intake stroke to take in water at the point driectly above the intake valve you could use a gas injector.  I need to clarify when we say water vapor, we are taking about a very fine mist, right?  The vapor will pull in, the piston will start it's upward motion and just before it hits tdc the diesel injector pops off.  This system would not need a very complex regulation or electronic system.  I don't know of a way to shoot directly into the cylinder without MAJOR machine work, high pressure injectors or high pressure water pressurization system.

[Fla._Deadheader]

 

I need to clarify when we say water vapor, we are taking about a very fine mist, right?

   It looks like fog.

  There HAS to be a way 

[flip]

There is a way.  How much $$ ya got

[Fla._Deadheader]

 Explain in a PM, OK