I didn't mean any offense, it just doesn't seem like you are giving information in the best interest of the reader, but rather to make yourself seem superior and knowledgeable....
My knowledge on this subject
is superior to you in every way shape and form.
And you know why?
Because your entire argumentation is "I haven't seen others", "What others do", "What I think others do".
Do you know why that is? Because you don't know shit. And you won't ever know shit if you continue this pathetic train of thought.
Let me give you an example of how I think:
"After rich best power any additional fuel is used to control ignition angle efficiency and also exhaust gas temperature, so let me put this car on a dyno and see where it makes the most power by setting a safe ignition angle, using short runs to prevent overheating and enriching in increments until the engine starts to lose power. Now let me advance ignition angle to the best possible at this operating point, use higher loads on the dyno and longer pulls to make sure I am not exceeding the specified component temperature limitations, and set protection functionality accordingly".
Do you know why that is? Because I know how an engine works and I can think for myself.
And I'm telling you from my own experience that running 0.75 lambda target is a total waste of time with the stock turbo. You will make less power, and you will not have any EGT issues even at leaner mixtures, because the stock turbo does not give enough boost at the top end where EGT becomes a problem. In laymans terms you don't need to chuck black smoke out the back to prevent meltdown when you're running 0.75 bar boost on top with the wastegate jammed.
It beats me though, where you read anything about "0.85 lambda" whoever said anything about that?
If you want to see my calibrations without any "vagueness" - the exact numbers I am using for everything - you can always pay me to tune your car.
I am not here to tune your car or anyone elses car, I am here to try and make you use that noggin of yours - but it seems lately it's more and more a waste of time, because we're flooded with snowflakes demanding instant gratification.