Hello, I have a 2008 ls3 C6 m6, I am trying to make a base tune for my 230/234 114+2 cam I'm putting in. I am very new to this stuff. I know I should tune for maf first by calculating errors with my wide band AFr vs commanded AFR with my PE tables set to a constant (12.5 for me), and forcing the car to run in open loop, while adjusting the open loop gas (gear & p/n)tables to command 12.5 acrost the board. That makes sense. Then I can adjust my MAF via histograms, and fine tune it, then set PE's to what i actually want (what do you think? 12.7?)
from there I will play with timing.
After that is done, do I put the stock tune settings back in the Open loop "Gas (gear)" and "Gas (P/N)" tables? I'm not sure what to do at that step?
If my STFT's don't match up do I adjust MAF more? how do you change those?
And for the main question, how do I tune the VE coefficients??? is it possible? Is it worhtwhile? if it's not worthwhile (from my search's it looks like a lost cause) how the heck to I turn off the VE so it doesn't effect anything?
Attached is my best attempt at a start up tune that should get me in the ballpark for maf tuning, if you have a min, take a quick look.
Car; 2008 c6 with ls3 and M6
LT headers, CAI, 160* thermostat, No cats, cat back exhuast, 230/234 cam.
Thanks
This is my first time tuning, and it feels like that first day in advanced multi-variable calculus, everyone around my was smiling and noding their head, while I was trying to figure out if I was in the correct room....