ok at at 7 on the stock t25 setup on my u13 bluebird i am gonna put in my walbro255 fuel pump and turn the boost up to 12psi how much more horse power gain should i get from this also running stock mafs i got a good fmic and 3 inch exuast so i just want to know what going up 5psi would do for me on the stock turbo thanks

It will pick up a lot. 7psi vs 12-14 is night and day. I am running a jwt bored maf/4 bar ecu though. The stock setup might not like the added boost, just be careful.

I would be careful and not up the boost, the injectors will max out pretty fast.

does evo injectors will fit in our sr20det?

i dont know but even if they do tyou need to reprogram your ecu for the bigger injectors...

how to reprogram my stock ecu? sory i cant buy any jwt parts here or any performance parts here because there's no performance parts here in the philippines for sr20's

well you can get a greddy emanage or an apexi safc

tnx bro. i think ill get safc. cheaper. hehe. by the way i have 1 big problem. my car stall at around 5k. i run 8psi on all stock. i cant see and tired of finding it. befor, it only hapens in 3rd gear now it also hapens in 2nd.

did you recirulate your bov? also check the trubo faq forum with shows you how to make a pressure test, make that and you will have to check for leaks...

its non recirculate bov. turboxs type h rfl. i checked it all but i found no leaks.

its non recirculate bov. turboxs type h rfl. i checked it all but i found no leaks.
thats your problem right there.. nissans with mafs need to have the bov recirc'd.. do a little searching on the forum. you cant "look" for a leak you need to do a pressure test.

I have an atmospheric BOV i have never stalled at all, it does run rich in between shifts, but I would still recommend recirculated.

thats your problem right there.. nissans with mafs need to have the bov recirc'd.. do a little searching on the forum. you cant "look" for a leak you need to do a pressure test.
This true for all Nissans with MAFs... what other option would you have of measuring air flow on Nissans besides running a MAF? :confused:

This true for all Nissans with MAFs... what other option would you have of measuring air flow on Nissans besides running a MAF? :confused:
safc? am i right?:confused: :confused: :confused:

indeed, It has the decel option, plus you can always run a blow through system..

or you can use a map sensor instead of a maf and en e-manage unit... but that means more $$$$

zo what if i get injectors z32nap and a jwt tune will this work ?????? for 12 psi safely is this all i need and what size injectors would you all recommend

yeah you can get a jwt for a lot of combos, you jsut have to make sure your equipment matches up... so the jwt has to be programmed fro the z32 maf and whatever size injectors you need...