You're exactly right. Trying one method starts to get results but than goes haywire the next adjustment. Heck just last night I had it really smooth made one adjustment and now throttle opens way to far when trying to accelerate at highway speeds. Had it open far enough at 1800 rpms without it downshifting or pulling timing that I'm lucky it didn't knock....
There has to be some calculation were missing...… I'm sure Ford is basing torque numbers on air consumed and timing correct? I wouldn't think Ford's ECU stores what combo equates to how much torque. Makes me wonder if they just interlope current timing from MBT is spit out a torque number. For example if you put in torque table 50 foot pounds at 700 RPM @ .25 load than the computer looks at current air consumed and current timing. Assuming air flow is spot on it looks at how far off timing is from MBT and calculates a slightly lower torque number.... I know there is way more to it but trying to think in simple terms.....
I'm trying to put together a spreadsheet that does the following.
Border line spark from tune
MBT from tune
Torque table from tune
Inverse torque from tune
Driver demand table from tune
Logged airflow in G/S
Logged actual spark
Logged pedal A/D on Inverse table and torque table
Logged throttle angle on torque table
Logged air load on inverse table
Use airflow to calculate torque but use math to calculate what torque should be based on logged spark. So if spark is at MBT than torque is true. If it's below than find how much lower and figure what it would be. Then have sheet somehow reference driver demand table to torque table (rearrange or whatever) so that it's easier to follow driver demand to torque table. Adjust driver demand to be on the lower side of the torque table (or higher still unsure of this) Input new torque numbers in tune and drive in the same conditions. Paste logged values back into the spreadsheet. Now compare throttle opening to the log before. Also, have the spreadsheet look at the airload to torque and calculate any errors...
I'm just shooting from the hip on this based off of what makes sense to me but I could very wrong. Also, I probably didn't explain it well enough. Math is not my strong subject and I'm no super user of excel so my whole idea could be impossible...
Alright.... Back to endlessly chasing my tail on this. Not having it perfect is bothering me LOL