turbo v6

So I'm welding up my manifolds for my v6 turbo and It just occurred to me I'm not too familiar with what I'll need for a dyno tune once the turbo is on and ready to go my question is what do I need computer wise I don't have the money for a standalone but I heard somewhere that I needed to buy...

i have a 2001 3.8l that i have been driving daily. the body is in perfect condition so i was thinking about doing a 4.6 swap. i looked into it for a while and realized it was not worth it so now im looking into doing a turbo 3.8l. could any one give me any insight into this such as is it worth...