In looking at the MSII site, it is pointed out that this is for a 2nd gen. I am doing a 12a turbo. Should I multiply the constant values by 0.875 for my baseline numbers? Hope I am not asking a repetitive question, but I have not found anything in my searches geared toward a 12a conversion.

 

Aaroncakes's right up is for a turbo II. His maps will probly work. Just follow what he lays out and you should be just fine. Ill be using his maps for a 12a NA. Ill work them to work with my car. Itll take some time. Considering theres very few that have done it

 

Constant values depend on your engine, and especially injector sizes. You can use Megatune to estimate a new constant. Or just plop in "8" and go from there, though I am told that this number is now more important with the new accel enrichment methods available with the newer firmware. That number didn't matter much with MSI and earlier MSII firmware.