I need to do this for my wastegate. Can it be done on any of the pipes. Im worried about the pipe being to skinny and not being able to hold the threads. BTW i bought a 1/4 inch npt barb for the pipe.
98mkiv said:don't do it there. You can take it off the line that is on the IC side of the butterfly.......... there is a line there that runs to the PS pump modulator. You can tee into that and see IC piping pressure. There is a smaller line from the same modulator that runs to the manifold side of the TB, you don't want that.
Do not try to drill and tap your IC piping, it won't hold the threads reliably.
I like this idea. Where is the ps pump modulator? It works just as good as tapping the ic pipe?