I think you need to learn about cars a little more.
But anyways. On my stock turbo which was called a ct26 its a toyota turbo its ment for my motor which is called a 3sgte. I can run a ton of boost on my motor but I choose not too. My turbo after about 15psi-16psi doesnt do anything… thats the stock one.
I would rather buy a truck and put a 6.0 motor in it paint racing stripes down it and call it a drag truck before I check out the nissan forums.
I know nothing about your cars… I had a buddy who a red I think it was a 6spd? And it was really slow… I could see maybe a high 15 sec time slip. My na celica was right there with him and he has intake + exhaust. I meen I can see maybe that time I have no clue about it… but you are also talkign about a 2.5l with decent compression to a 2.0l thats low compression ment for boost…
my jdm 3sgte is 225hp/200tq@10psi