Can I supply enough fuel(boost)

[Hardass]

OK here we go 09 m8 4 inject setup the two extra inject are run by the boost it box I'm using the stock fuel pump with the return hole welded shut I'm also using the bdx fuel chip(more voltage) does that give me enough fuel for say 12/14 psi? Or where's the limit thanks

 

[Hardass]

hmmm ok

 

[Tonysnoo]

So if I understand your setup you are running no fuel pressure regulator?....or do you use an external regulator and return fuel from there?

 

[Hardass]

Yes i have a external reg with a return line i have since been told ill have all i need Thanks

 

[inspector01]

A bit of math will tell you all you want to know.

Calculate fuel flow required for your desired power level with ~15% safety margin. Then figure out fuel pump flow capacity at pressure you will run, and figure out injectors flow capacity.