i'm getting a 16g turbo from a friend and i'm running 5 psi and i get a walbro 255 in tank fuel pump and a fmu ( boost dependent fuel preesure regulator) will that work and can i keep my stock injectors on obnly 5 psi let me know thanks

 

at only five psi you will be fine.

 

you will be good at 5 psi

 

your good for 5, get bigger if you go higher then 7

 

If your running a FMU it's better to run a inline over a intank pump. A intank can't provide the pressure needed for a FMU like a inline provides. At 5psi you might get by with it but it's better to be safe.

 

if you have the intank, you could do a VAFC and get some DSM injectors. Since you have a CRX you don't need the resistor box since you already have it. Run the AFC hack, a little bit better than the FMU route