I figured it was tps or map referenced when I started looking into all of this. When I heard about cam position I thought WTF!? Kinda limits the application of the system.
Hope this helps. More monies, but ones with new stepper motor, custom gauge, ect. Mine is not on yet, so I can't really give any useful reviews but this is who Blaylock uses for their Switch blade turbos. http://www.ubertechnics.com/vgt-pre.aspx :Cheer: