Ive been doing some searching on two very important tables (spark and PE fueling)
I do not see much info recommendations on tuning or setting these up. about the most i see even with Google searching is some tuners or experienced people with a dyno will briefly touch on this as if its a super top secret formula only letting out a ideal max spark or AFR.... Don't get me wrong I know not every person wants to give out info they make a living on but for the rest of us why not? isn't this why we buy the tuning programs? (to make a better tune and understand how and why changes are made)
With that said and since modified tunes are not around to dissect and note proven changes maybe this thread can spark some interest or even some knowledge on how a guy at home with no dyno can properly figure out how to make the PE scale and to avoid leaving a good deal of HP on the table or worse run it too lean.
I have a highly recommended book on tuning that I was reading off and on for some time now and from what I'm understanding on a NA ls1 max power would be achieved with a Lambda of 0.91 ( 13.17:1 ) but this could leave you on the edge of shortening the engine life. Also in the book they chose run between 0.82-0.86 Lambda to allow a safe WOT tune. In the example they had stepped the AFR at different RPMs.
My question is how do you know where to make these steps? I can only guess you need a dyno and significant experience to know where the steps are made.
So this leaves me here wondering what I should do short of having this taken to a "Tuner" which was what I thought I could avoid.