Hmmm...
But won't this approach (of pressurizing the water tank via a line from the plenum) also, in effect, increase plenum size? You are creating a dead space that will mimic the pressure of your plenum, i.e., if you have a 1.5L water tank that is 1/3 full, you've added another liter of space to your plenum that must be pressurized before the intake charge is forced into the cylinders, and this can't be beneficial. Hmmm...maybe if you also used a check valve so that, once pressurized, the tank would retain pressure and wouldn't need to 'cycle' with the rest of your system? Would you also want some sort of pressure relief solenoid to trigger when the engine was shut off? Maybe I'm just making this overly complicated in my head.
Also, doesn't the accumulator and/or damper serve the same purpose (albeit on the pressure side of the pump)? I see more value in adding a second accumulator between the tank/priming pump and the Aquamist pump than in pressurizing the tank itself.
Just some thoughts...
-Jeff
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