N1EDM

My Feedback: (2)

I'm no expert, but I'm wondering if the blunt tip may be intentional to minimize turbulence as the fuel passes by the end of the needle?

Again, I'm not trying to pass this off as fact, just posing the question/possibility that this might be intentional. Or, it would seem to me that the sharpened point would be easier/cheaper to manufacture. Which needle was on the 600-series engine?

I agree with Tigrejohn - swap needles and experiment, provided that the tapers/threads are the same... let us know what you find. It might be interesting to see if either of the engines usese the same number of turns with either needle (or not), how well it transitions, or whether or not the needle is more or less sensitive with one of those needles.

Bob