TurboDave , have any real tests been done to confirm any difference in performance based on IAT sensor placement ? I am using IAT sensor in stock location and I wonder why does it matter since I use MAFPRO for partial and WOT AFR tracking with wide band , would it not AFR be adjusted no matter what inputs say to your target AFR ? is it NOT the whole idea ? by the way I switched to speed density without IAT compensation mode for a while to see what happens and I did not see any difference , is it because the tracking works so good or is it me doing something wrong ?
Well, I don't run a wideband yet, so I can't yet address that issue. But I do monitor the signal "density compensation" on my laptop or MafPro and I do notice that the air temp going into the engine does in fact add or subtract fuel based on the temp, or at least it says it is. It isn't a lot, unless the temps are quite cold or quite warm. I think the switch point for it is somewhere in the mid 70°'s as I recall.
Don't know about your last question. Your tune might be extremely close and not a lot of tracking changes needed. Keep in mind we're only talking a few % either way so you may not have any issues.