[mops]

Hello guys.
Great forms here.
I was always interested in alternative fuels/exotic fuel mixes and multifuel setups as a means of increasing performance or a car engine.

Anyways, long story short, i'm rebuilding e30 bmw 325i engine (L6, sohc, 2V, wasted spark igniton, megasquirt standalone ecu) with a turbo on it. Aswell i decided to install WI system, esp for experimenting with different special fuels (combination(s) of water/ethanol/methanol/toulene/acetone/nitromethane/whatever else i can find that goes 'boom' :twisted: )

Standalone ECU will have a whole separate injection channel to drive WI, so i can tune WI with it's own separate VE map (just like fuel)

so here are two different setups i'm thinking about. I'm trying to decide which would be better. Of course i would like to spend as least as possible, but i dont mind spending bit extra for bit extra functionality/assurance/value.

So:

Option 1: Batch fired port system.
would need 6 small nozzles installed in each port. suitable water pump. one big fast acting solenoid valve. no FPR. Can thoe fast acting solenoid valves open and close as fast as injectors ? in low boost situations i might require only, eg 3ms PW worth of WI injectoed, can those valves operate at those levels ? note that all nozzles will be hooed up to this one central valve, so it has to provide enough flow.

Option 2: Multiple nozzles in the intake, just after IC, with a twist.
In this situation i dont think pulsing jets are a good solutions, because these create 'areas' of more or less saturates 'mixture' Instead I'm thinking about, say 6 small valves (sizing to be confirmed. possibly different sizes would work better, like 1st jet big, rest smallish), that would be actuated in following way: at 2 psi of boost first one opens and keeps open until boost above 2 psi. once (say) 5 psi is reached, another one opens (again 100%DC) and keeps open until boost is abouve this threshold. same for all other nozzles, each opens at higher boost treshold.

I'm leaning towards option 2, because with option 2, WI has much more time to evaporate in charge air and therefore bring the chage temps down. downside is that ti would requires possibly quite complex controller to operate well...

I'm looking for pro's opinions about those 2 options. I do not have any practical Wi experience myself, so your input is highly valuable.

Thanks,
Mops.

or perhaps a hybrid of both ? one big nozzle after ic + port nozzles for fine tuning.