Good for you for doing what you've done so far. But it doesn't change the fact that you are trying to use the MAF in a function it was NOT designed for and therefore, not capable of working within it's parameters.
The fact that the HOT WIRE MAF uses two wires, the front one being heated and the donstream one measuring the temp of the air as it passes by should be enough to tell you that when you start pumping out air at 3-400F (when it's design limits are probably not much more than 200F), it will go beyond it's measurement resolution and then the PCM will just guess its best guess.
At 5psi, sure the air temp is probably not TOO bad, but start increasing the boost with this setup and you are playing russian roulette.
And of course you are ingoring the simple fact that no turbo will be totally clean of oil through the compressor side - especially at high rpms when you let off the gas as the oil pressure behind the catridge seal will be very high and the corresponding vacuum in the intake will create a lare pressure differential that will suck oil past the seal Eventually this oil will pass through the MAF and dirty it.
I may not be PC in my arguments, but it seems that insults are the only ay to get through to people who choose to ignore THE FACTS.
