I use water injection instead of an intercooler but I also want propane injection. My primary concern is that the water will "wash" the propane vapor from the air.

Comments?

 

Nobody knows?

 

Propane has to be injected as early as possible to mix up with the air. In fact it is possible to inject propane in front of the turbocharger- without risk of self ignition.
This makes sure propane and air will mix up pretty good.

Don't worry about the water, since both gasses, propane and air will not change their state.

Why do you want to skip on the intercooler advantage? Space problems? Or do you fear a response lag?

 

A clean installation. I don't like the big air tubes, water and propane lines can be easily hidden.

 

Be careful with propane.
G. Banks has written a very detailed and good overview about propane and why to avoid it.
I know that even MSD is on the LPG train, but the facts against it are written in Banks typical no-nonsense style.
Its worth to have a look on it.

What about nitrous?
I see your point- but an intercooler air/air or air/water offers huge advantages since they don't need neither fresh propane bottles nor refill of fluids.

In my opinion propane/nitrous/water injection can be done when all other limits are exceeded.
Of course I do understand that hose routing can be a nightmare and takes it times.

 

The whole bottle-refill thing is not a problem to me. Just need to know if the water will wash the propane out of the air.

 

i am not sure but hope to be yes.

 

propane vaporizes at -44 degrees. i dont think any amount of water injection will make it "wash out"

nitrous on the other hand with a boiling point of -127 can cause the propane to re-condense back into a liquid if injected at a large enough quantity

 

Finally some useful information, thanks!

I wasn't worried so much about condensation, but the propane being absorbed by the water. Basically if propane is water soluble.

 

propane is not soluble in water. think oil and water.