I did some datalogging on my stock 2014 SHO, and the LTFT+STFT for both banks looks like it is on average, about 5% lean, when looking at the big picture.
I found a thread on the Ford quadratic equation in this forum, but cryptic doesn't even begin to explain it: http://www.hptuners.com/forum/showth...ight=quadratic
I know a few people do this for a living, but have any of the DIY'ers developed some kind of guide? Essentially, all I'm interested in doing is being able to correct/compensate for an aftermarket air intake or at least fix the stock tune so it is more dialed in. With the older Ford MAF systems, I could do this fairly quickly thanks to a variety of guides/resources available. Which PIDs do we log, and which tables do we modify? Where do the mapped points come into play?