This post actually stems from another "LBZ Hot and Loss of Power", in which there were some good responses but not a lot of direction for what to do to find out what was causing such a loss of towing power.
One response from a Banks Tech led to a phone conversation with same; and the basic recomendation was to relocate the MAF. He said that Banks had had some problems with their intake system in developement and found that when they located the MAF in the bend just before the turbo tract, and on the outside of the bend that they found good power gains and also found that the EGR valve pretty much stayed closed all the time.
Fact or not I though it was something to check out and try; if I could get any other insight that seemed favorable.
The position of the MAF on my LBZ (others too I assume) is on the inside of the first bend past the filter box. In this position the main velocity of course is on the opposite side of the intake tube; as with any hydraulic action the inside of any bend has a lower velocity than the outside. Depending on the configuration a vaccum can actually occur on an inside of a bend at some flow rates. (In chill water systems sometimes to the exent of air pockets and pump cavitation given the right proximity.)
In any case it seems that Banks by their repositioning has increase the flow at the MAF dramatically. How does that work?----and is it possible that this could actually effect the EGR. Seems that the consenses here is that it could not.
I'm still looking for the power loss----Killer Bee says I'm on a ghost hunt!!! But this ghost sure has some real power drawbacks---hot too.