Hi, as most of the boost controller can store two different settings, and switch between them by just one click or so. I would like to ask is that possible to have a safe tune, and a more aggressive tune simultaneously , say 21 psi for A tune, 25 psi for B tune (assuming both A/F ratio, ignition timing are tuned properly)?

If that possible, can I run A tune for higher mpg, then switch to B tune while I am driving to extract more power suddenly?

 

No help?

 

It is one map for the boost and one for the advance for the same fuel octane (high or low) on the OEM ECU.
If you have a standalone ECU then it's one map for all octane fuels.
You can't have different advance or fuel maps to switch from a boost controller.
If you want to do something like that you have to buy a standalone ECU with different maps like 4D tuned maps switched from a button. (Motec can do this for sure...)

 

^ +1

Boost controller only changes the boost setting (low <---> high).
That's all.