New-bigger turbo
 

hello guys its been a while since I write.Now I planed to put t4 turbo,what to do
and how to bridge and what to do with o2 sensor and that intake sensor(AFM).can I remove it(or better not) but what should I do to make it work without a problem or there is another solution?I didnt say its a 7m,and want just to slap thet turbo kit,fuel pump and couple of small things to it and to see what power should I get.now engine is out and I didnt finished rebulding it.I didnt take metal head gasket...can I support all that only with a walbro pum 250l or must go with larger injectors 550cc?and do I need a FCD?

huh? Not trying to be rude but it's much easier to read when it's proper English.

Also, if you plan on going all out a stand alone ECU is the best and only way to go. That being said, a piggy back that lets you tune fuel, and other stuff could go a long way depending on your final HP goals. I don't think the o2 sensor is a factor, but if I'm wrong somebody else can chime in with their 2 cents anytime. If you plan on big HP #'s more bigger injectors is a must and if the 250 lph fuel pump can't handle the power just put two pumps in there and problem solved.