Awesome information in here guys, I'm glad this has turned into such a discussion. Despite the fact that I'm now more confused than when I began
.
My tuner is an experienced tuner, mainly with Hondas, but they have no experience at all tuning Nissans or Uprev at all. They have been on the phone with Uprev throughout the day so I'm ASSUMING that they have stuff like the K factor (not that I have any idea what it is
) covered but I'll talk to them further tomorrow.
Would stuff like the K factor affect the cars running throughout the entire RPM range? It currently runs great on the dyno up until the point where it starts to lean out up top.
A rather basic question but, what should the target AFR be? Years of fixing cars and I'm totally incompetent on the tuning side of things.