Yeah - just get the scaling ball parked then put the car in 3rd and roll into easy and once you see the afr is going rich or lean stop and change the scaling and repeat.

May take a few times....I mean you wont get it dead on but if you get it fairly close you only have to make minimal changes to the fuel map. May not be what everyone does or the norm but it does work, I dialed in a set of 850's this way.

 

How do i know if my latencies are ball parked when done this way? dont those need to be sorted as the scaling changes? i have the car idling right now, i can drive it around the block if i play with the throttle.. Once im passed 2500rpm the AFR's are normalish, but below that its either pigrich or full lean. This car is not consistent at all! haha

 

Watching your fuel trims will tell you what you need to know.

 

Well for one there is an entire thread of people posting latencies for all types and sizes of injectors - that is a great place to start.

Once you have the scaling set - watch your fuel trims and adjust latencies a little at a time and watch the changes. I think your trying to change to many things at once....and your making it harder than it needs to be.