Hahahahahah... just had a look at what a port injection system costs
So an end to thinking out loud. It is always possible to upgrade, so for now
I will go with a basic two nozzle system... one pre-charger and one post-
charger. Standard nozzles installed at 45 deg in the bends as per the above
sketch.
From what I understand, placing the post charger nozzle further from the
inlet manifold would help the cooling effect, but increase the chances of
water being centrifuged out of the airstream. Placing it in the last bend will
reduce the time for cooling, but allow more water into the cylinders in
droplet form... so perhaps the better option ?
The pre-charger nozzle appears to be less critical as the charger "mixes"
the air and will not be sensitive to droplet distribution at the inlet.
The only question remaining is whether it is necessary to use one (or two)
checkvalve nozzles ? There will be some pressure differential between the
nozzles, so draining could occur during out of boost driving. However, there
will only be about 0.5 metres of 4 mm tube between the nozzles, and this
should not create any significant delay between activation and spray ?
EDIT: Oh,and one last question... what would be the recommended water
split be between the pre and post charger nozzles ? 25/75 ?
Appreciate the input as I like to examine the alternatives
Cheers... jondee86