Looking for some answers here. It looks like when I get around 1.5load (0psi,0hg) or anywhere getting close to it, the timing goes into the negative numbers. And as I get further up into the throttle it’ll just keep submarining into the negative. We seemed to have solved it by just 0’ing out pretty much every table there is and running straight off the MBT and Borderline knock tables for timing control (both the same numbers). Based off the stock 06 F-150 tune for everything with spark, is there a specific table that would be causing this? Also there is no knock detected so that’s not pulling. And we 0’ed that out first with the same results.
I just don’t really like having to basically put all my safety spark retard settings to 0, but it looks to be the only way we could find to control spark so far and have reasonable results.
Any ideas?
(Stock tune included here as ref.)