SRSmith

Yep, I know there are a million threads on this. Trust me, I've read them.

And that's why I'm confused. my inputs are far different from any that other people are using.

I'm using:
SR20 redtop
300zx maf
480 cc injectors
t3t4 turbo
apexi safc 2

For the 300 maf, I am usining a 2 in 6 out setting. Most people use the safc with the more common 550cc injectors. They recommended starting with a -33% setting on both the high and low throttle. As my 480cc injectors are somewhat in between the stock 370 and common 550, I set the unit at -15%.

To my surprise, I'm running lean. So I immediately shut it off and set it to -5%. I'm still a bit lean even with the cold start, so I set it to +10%. Now I'm running around 12.5 afr, but as it warms up the motor creeps into lean territory again.

For a random detail - when I unplug the maf, I'm running a good air/fuel ratio. I expected to be running rich as I have bigger injectors now.

Are my inputs correct? Are these the expected outputs for my settings? And if not, is it possible my ecu has some unknown tune that is screwing me?

As always, I appreciate the support.