want to know, what afr/timing should be aimed for best torque and fast spool on spool-up/mid rpms ?

 

It depends on fuel, turbo, supporting mods, so on.

Here's an example of mine/hopefully legible/should give you an idea/you would want a smoother AFR and not leaning out like mine up top:

EDIT: Just to clarify, this is a badly skewed fuel/timing version of the tune on my car. Done with a MAFT, a GM 3.5", and Big K&N cone when I was testing. It's a "ballpark."

 

I use multiple maps depending on my purpose, some more aggressive than others, but here's my daily driving one:





I've gotten better results using as high of timing values as it will take with leaner mixtures at spoolup, rather than quickly ramping down to low timing with leaner mixtures. I kinda proved this in a tuning session last night, measuring the time it took to run from 2500-4000rpms. As I increased timing on the spooling up rpms to knock threshold, it went from 2.52 sec to 2.39s.

(keep in mind that my hardware setup is probably different than yours)

 

thanks for the input guys

my car is E3, with stock turbo, 1.1 bar, 98 ron fuel