That's some good info.
but i don't 100% understand the way you are controlling it....
you are saying that if you are too lean, then boost will stay low. aswell if you run out of WI (meth in your case), the boost will stay low too. that is awesome. how is that controlled ? because just like you, my injectors will only handle so much boost/hp, if i want to go further I'll have to reply on wi delivering extra fuel (possibly i'm considering preturbo extra fuel injector ?)
Aswell i dont understand your injection staging. are you saying they all activate at once? at 7 psi of boost ? all including those port ones ?
just as your system, i'd like to build in some sort of safety, ie. if no WI pressure then the boost will stay low. this could be done by bleeding some pressure to the top of the external wastegate (bleed 3 psi there, boost will incerase by 3 psi - that's the system porsche used to have in their racecars.)
at this stage i'm leaning towards my option 2. I already have some thought about the controller. it will be really cheap and effective. one of those DIY kits form local electronic store that show injector DC using 10 led's (each led=10%). basically higher injector DC=more fuel=more air=more Wi to inject. Say i hook up nothing to 10-40% leds, then to 50% led i hookup big nozzle (for 50% of hp capacity of the engine), then each 10% led get's s smaller jet.... there's some calibration possible with nozzle sizes AND with the sensivity of the DC sensing circuit. aswell with this setup i can use cheap solenoid valves, not those expensive fast acting ones.... possibly some nozzle(s) can be installed preturbo...
on the other hand, i think port injection is good too, because unvaporised droplets make it to combustion chamber and vaporize there, cooling it down (imho this has greater effect than cooling charge, but what do i know...)
decisions, decisions...
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