Therefore, I won't respond to any of the less than reasonble comments and claims here.
In terms of the placement of the SIR that I observed at the tests I was present for, I can say this:
When the SIR was placed directly in front of the HFM (?) AFM (?) the car ran poorly and was clearly affected by the pressure variations the SIR presented, even low in the rev range. So we moved the meter to a location, as I explained many posts up, upstream of the SIR.
The wire reached easily, we didn't see the same issues, and the A/F ratio was right in the range it should be, and matched the baseline runs.
Now, is it possible to mount the SIR further upsteam of the meter and acheive good results? I don't know. I understand that Dave Finch (from what has been repeated here) states that that is the way he tested, but I am unaware of any tests he conducted.
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