Fuel injector for water injection?

[tgentry]

I'm sure I'm overlooking something because this seems way to simple and elegant:

Why couldn't we use a fuel injector for water injection? Use the same signal the ECU sends to the fuel injectors for the water injector. That way fuel and water would always be at the same ratio. Tune the water/fuel ratio with a pressure regulator or by changing injector size. Add a hobbs switch to turn it on at the pressure that suits you.

Ok let me have it, why won't this work?

[Richard L]

Originally Posted by tgentry

I'm sure I'm overlooking something because this seems way to simple and elegant:

Why couldn't we use a fuel injector for water injection? Use the same signal the ECU sends to the fuel injectors for the water injector. That way fuel and water would always be at the same ratio. Tune the water/fuel ratio with a pressure regulator or by changing injector size. Add a hobbs switch to turn it on at the pressure that suits you.

Ok let me have it, why won't this work?

Water will corrode the internals of the fuel injector - the material used on fuel injectors are iron based.


Richard

[tgentry]

I thought injector corrosion might be the problem.

So what is needed is a corrosion resitant injector or a very fast acting solenoid and standard water jet.

Aside from that (and I realize that's a rather large aside) does this scheme seem worthwhile?

[Richard L]

If you can find a water corrosion resistance fuel inejctor, all should be fine and it will work with WI as you described.