So, we determined that, at least if you have identical ECM #'s, you can share qcal files between each other. Basically you export your changes as a qcal file, the other person opens a copy of their stock tune, imports your qcal, and it modifies their tune as if it were yours. Then you can save it as a modification of your own.
The email full export does nothing, and sharing your whole tune as a .syk or zip does not work either.
So, I've got quite a bit of the basics figured out on this. But there's a lot of mysteries in there too. I'm certainly no expert but knowledge of tuning concepts and good ol' fashioned trial and error have helped.
Maybe some day I'll do what they haven't and write a help guide or something.
But for now, happy to answer anybody else's questions if I can.
Here's some of what I've been working on, to share. Keep in mind this is a heavily modded 4.5 with a 4250 cam.
Stock timing graph, looking like the Rockies; way advanced right in the highway cruise range (and emissions testing range...)
Due to the lack of knock sensors and a high quench height, they conservatively detuned it mid throttle to stay away from detonation issues, so you see some valleys and a dropoff in the higher MAP ranges.
My timing graph, modified and smoothed. I don't feel dramatic changes from one cell to another are productive; smooth tables are easier to street tune when you're datalogging and correcting cell by cell, listening for knock. It sure would be nice to be able to add Knock sensors my LM2...
My timing table: Blue for less than stock, red for more.
I tried adding timing across the board and instantly started getting detonation in the higher MAP ranges due to my raised compression, so I left that area alone. I lowered the idle range to more closely match the idle spark setting.
Instead of modding the running spark table, I added some advance in the WOT table, and added some retard to the IAT and ECT tables at higher ranges in case of hot days or hot engine/intake.
Fuel table, modified by datalogging Long Term Fuel Trims and adjusting up or down as needed.
Values are injector pulse width, in microseconds. I'm used to VE and AFR tables, but this works too.
Unfortunately the "display as AFR" feature doesn't work anywhere in this software.
It looks like I accomplished my goal of more efficiency at cruise range (needing less fuel) and more power/airflow at higher throttle ranges.
There's lots of other experimental tweaks in the works, but these are the most important ones for now.
