I have a 92 cx hatch with a b18b1,t25 internal wastegate set up,im new to the turbo stuff dont know much about it at all,but i do know that it is a xs power t25 turbo with a internal waste gate,440 cc injectors(ultimate products?),msd cap,button,8.5 wires,and external coil,stock map sensor,p06 chipped ecu,suposably tuned with neptune,but it is chipped thats all i really know about it.It runs good untill you get to 5000 rpms then just falls on its face,I mean flat on its face,could the ecu cause this problem,or maybe the injectors,any help with this would be very apretiated,thanks

 

A T25 turbo is a tiny turbo for that motor, It probably cant push anymore air in the upper rpms. I would check into the tune for sure tho!

 

yea, the t25 is small, but its not causing the issue, its most likely tune related, get a tuner to check it out! if u dont know of any REPUTABLE tuners, check the sticky at the top of the forced induction section!

 

ok,ill check them out,a t25 is about equal to a 16g dsm turbo,right??I just dont like the internal wastegate,can they just go bad and boost what ever it wants to,if it did that would mess up the map,right?some one please correct me if im wrong but isnt a stock map sensor only good to 10 psi?

 

a t25 is much smaller than a 16g, stock map is good to just a hair over 10psi, but i honsetly dont think thats the issue, like i said, u need to find a tuner and get that thing retuned...

u could chase ur tail for weeks on trying to fix a problem that is just in the tune...

 

ok man,ill get it checked out,thanks

 

well guess theres no need to now,i went to start it this morning and it wont even start,i checked the dizzy it seems to be fine,fuel pump works,so i took out the ecu and just pluged up a p72 i have lieing around and started wright up but idols really low,and wont take throttle at all,but im sure thats cause of those 440 injectors,right??so now i guess ima need to get another ecu,im guessin?can anybody give me any advice about this problem now,please