For the 1/4 mile times their is a timeslip registry on this site. I think the fastest on their currently is a 12.6 with a SER motor drop. I think the best ugrades for the sentra would be the headers and the JWT ECU. The sentras are all four doors now, but used to also come in 2 doors before 95. The 95+ 2 doors are called 200sx now. Stay on the site as long as you want. We are not a hate site.