<VV> Water injection question

[kevin nash]

> 
> Message: 1
> Date: Thu, 21 Oct 2010 16:47:05 -0700
> From: "jimster1" <jimster1 at earthlink.net>
> Subject: <VV> Water injection question.
> To: <VirtualVairs at corvair.org>
> Message-ID: <817B5B2C863740D894C96D0144C0B7A1 at daddy>
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> 
> I'm in the process of getting ready to install my DCOE and I think water
> injection is a good form of insurance. The question is, should one inject
> before or after the turbo. I have no pump at the moment so that is not
> (yet) a factor. All you water dogs, please chime in.
> 
> Jim
> 
  Jim- Yes, you can inject before the turbo- but only if you can get the water droplet size down to the same size as the gasoline droplets, which are approximately
  50 microns (?). A little larger than that and the turbo starts slinging water into the sides of the housing, then pools up in the bottom of the housing, and can then
  gravity feed to the rest of the engine. Bad news! If the water droplets are alot larger than the maximum size, its about as good for the turbo as shooting rocks
  in there! To ensure proper atomization, you need lots of pressure, at least 100 psi. If you get a 100psi+ pump, you dont really have much of a reason to be injecting
  from the draw side anymore. The only reason people ever did draw thru water injection was to avoid having to use such high pressure pumps- you WILL ruin
  your turbo very quickly if you try a poorly atomized injection from the draw side. 
  Kevin Nash