^since you are new and doesn't liek anyone hook you up on some links.. here READ these many time to get an understanding of the car...
www.sentra.net go to kojimas garage, that is an excellent start, the hit up the project 200sx 1.6T on
www.nissanperformancemag.com the before asking more questions there have been shit loads of similar question, hit the search button and type in whatever your heart desires.. good luck and welcome to the boards