SLO CAV (autocrossing dude) wrote:
Addicted to meth wrote:
the "vacuum" reference is pre-throttle body on the J-bodies
Depending on how you look at it.
on a LD9 it is on the TB, which depending which port could be considered after the TB.
Usually on Eco's we connect it to the intake manifold.
With the M45 it is also on the charger (boost side).
The stock FPR is actually a 1:1 FPR that will increase fuel pressure 1 psi for every 1 psi of boost
I'm glad you posted this. I have also known it to be this way, or read it was. Others say it is not.
If you want I can make a video showing that infact it is boost referenced I have electronic auto meter pressure guage and it does add 1:1
Would it be safe to bump the fuel pressure up to 60 at idle (w/vacuum) to get 42 lb/hr ratings outta the injectors? this would allow the injectors to deliver more fuel per pulse and should help me lower my IDC. Am I thinking about this right?