^^ Whats IPW?
I called the support number here and am now leaning towards using a 3bar
Progressive Controller with a 2bar MAP sensor, so that there is a rediable voltage in vacuum.
I suppose this would be a cure and the solution I want, there wouldn't be a problem with a large load that is in vacuum that would upset a MAF based tune. With the MAP setup tuned right, that shouldn't happen, but one problem would be the system injecting with the key at the "on" possition, but I have a time delay relay and/or switch to fix that.
Whats important to me though is the ability to slowly ramp up the injection, before boost hits, and I feel the MAF way would be better at this.
The TRD blower has a trick bypass valve thats not just used as a relief when getting off the throttle in boost, but also to recirc the s/c'ed air when there is no percieved load. It senses engine load via vacuum (like a MAP sensor) and then "closes" to provide boost when it sees a "heavy" load (hence I can stay in vacuum going up a hill if I go slow enough, even at high RPM). Upon reving the engine you can see it close, then open again when getting off the throttle. This makes for a very VERY fast boosting system, it'll go from vacuum to full boost in a heart beat (I'm an auto, so usually when I romp on it, there will be a downshift, and within that shift it goes from vacuum to full boost). Seeing that the MAF is pre-charger, it will see this on-slought of air being sucked into the charger, rather than a "oh sh*t boost!" signal from a MAP post charger.
So still kind of on the fence with this... Dang so ready to slap this thing in and get tuning, just can't make up my mind on controller method lol.