Originally Posted by
jlpearl
Higgs Boson thank you for sharing your thoughts, efforts, and results here!
We have been working on refining the tune in my business partners VMP '15 GT and made drivability progress by introducing multiple TQ and Spark tables (it started out with just one mapped point enabled). Anyways, overall drivability was improved but it introduced a noticeable and highly irritating surge just before boost (2,000-4,000 RPMS and 75-105kPa). Anyways, I just modified your tables to work with the Absolute Load (SAE) and Engine RPM PIDs from a drive earlier today.... and we are getting significant wheel torque errors in this range. I expect this is the key to our surging issue. I will report my findings tomorrow.
Side note: for anyone who is making lots of redundant entries or modifications to the list of graphs... it goes much quicker by opening the graph.xml file in a word editor, or better a XML Editor. I needed to change the load PID, load units, and RPM PID in Higg's example, and it went VERY quick with the XML Editor.