Injector Help!

[Dizzem]

Hey guys,
I have recently purchased a set of brand new FIC 750 cc injectors from a friend and I have a few questions...

First,My car breaks up around 4k RPM's when it is under boost but when the car is on the vacuum side of gauge I can rev all the way to my rev limiter. Could stock injectors with no AFPR, Big front mount and 16G be forcing to much air into the system that the stock injectors can't push enough fuel through causing fuel cut?

Second, On DSMLink how do I go about tuning it up so that the car will run with these injectors or how can i turn down the amount of fuel sent into the head? Cause I don't think that with my setup at the moment that I need the full flow of the 750's.

And Third and final, On the AFPR what should the fuel pressure be set to for these injectors?

Thanks any help is greatly appreciated!
Zac

[ChiTownHussla]

I know you have to change the global settings on LINK. the other stuff cant help you cuz I dont have link. Have you tried injector cleaning? how much boost you runnin?

[Dizzem]

I am just putting new injectors in because I was told that this could be a possible problem and it doesn't matter how much boost anything over 5psi will cause this... And I saw the Global settings but I don't know how to use them and I don't want to screw myself over.
Thanks for the Info!
Zac

[dsm-ed]

Are u still running factory 11psi on the 16g
The fmic wouldn't alter much you car will only take in as much air as the throttle body and intake will allow now as far as the fuel cut I have ran into this several time what worked best for me was to recheck the timing false ignition timing can cause your fuel cut also


What mods do u have done to your car the requires 750s

[northsydryd]

Your stock fuel pressure shouldnt be over like 45-50 psi...if it were me? I would set the fpr to that and turn it up till the car runs right.stock boost adjust fuel turn boost up adjust fuel and so on and so on...maybe its just the "old school" in me,but i feel like link and all that tuning is not needed...i think it can be done without it...but then again im not the turbo guru,thats just my opinion