So i have a 88 civic hatch with a d16y7 swap and a pm6 ecu swap with the dx to si harness swap. I just got a turbo kit off a guy I know, its a t-25 .48 a/r setup. I also got a pre-tuned pr4 ecu thats tuned for a d16 using that turbo for 10psi. He told me all i need to get is some DSM 450cc injectors and set the timing to 15 degrees. This all sound about right? Anything else i should do?, colder spark plugs if so which ones, FMU etc? fuel pump? ..I plan on running the setup at about 7-8 psi until i build the motor up a bit more and get a intercooler.. any input will be helpful

 

as long as you trust the tuner, have at it. you wont need the fmu with the injectors and the chip.
which d16? a6 z6?
i am assuming an a6 as a pr4 isnt a vtec ecu.
fuel pump yes, keep the boost low as no intercooler will be hurting you a bit. 1 step colder on the plugs, or the good ole bkr7es11's that turbo is little and you will have fun with it.

spend a few bucks and get a wideband. unless you really trust the tuner.