I ran my oldest nitrous set up,now i decide to boost some psi with this set up.

B16 Jdm 160hp
bone stock head with ferrea retainers and skunk2 valve train
skunk2 s2 tunner series cams with hayame cam gears
wiseco 11.5-1 comp and eagle rods
bolckguard
cometic head gasket 81mm bore and 74mm 4 layers
short intake manifold(b16/170hp)
TB 62mm
siemens 750 cc
walbro 255 fuel pump
Ebay XS turbo kit
p28 with ectune

How many hp can i get with this set up and right tune?

 

1) Boosting 11.5:1 -- dangerous but possible, depending upon how much power you plan to use. (don't go by psi argument saying "its only xx boost.. doesn't work that way)

2)Scrap the block guard.

3) 4 layer gasket? the compression being dropped shouldn't be done in that manner at that magnitude. I can see using a slightly lower head gasket to drop a few tenths of a point of compression. It is better to use the correct method to drop to 10.0:1 compression or so with the better pistons.

3)There is no point in using these Stage 2 tuner cams unless you are seriously pushing over 500-600whp. You're wasting time. Stick to the GS-R, Type R, CTR. Use that extra dough to tune correctly.

4) Ebay EX turbo kit? All these good parts to put that crap on there? You just set yourself back a big step.

 

in other words, stick with your old nitrous set-up and research because you will be dumping money down the drain.

i dont know how much nitrous you shot, probably not much because that compression is dangerously high for forced induction, whether its nitrous, turbo, or supercharged.