If you have the PFC and you want to do your own tuning what are some things you must have?
data logit?
wide band?

or can i do some resonable tuning with just a commander and a narrow band?

let me know, you guys have the experience

 

Don't tune with a narrow band. They are not accurate enough to give you data worth making tuning decisions on.

The PowerFC / Datalogit / Wideband combination is fanstastic for tuning.

If you don't want to go to the trouble, you can go to a dyno and do runs with a wideband connected and make adjustments based on that data.

-Max

 

thanx man, so a narrow band o2 guage is useless ?

 

A narrow band O2 sensor is useless for tuning. It can be useful for seeing if you are in closed loop mode, or perhaps noticing a change in your "normal" readings (but even then the readings change with temperature).

-Max

 

Do a search on this forum, I posted a comparison of my NB vs my WB on one of the threads awhile back.