salemetro

iTrader: (5)

I'm wondering what the proper procedure for setting "base" fuel pressure is.

Currently, I have it set with the car not running at 55psi (my target base pressure). When I start the car, it goes down to 46psi @ 16hg. I'm assuming that this is correct, as the regulator is referencing the vacuum in the intake?

I guess that I'm really just not sure if "base" pressure should be set with the car at idle, or as I have it set up currently?

Lonnies Performance

iTrader: (16)

Start the car & with it running, adjust the pressure with the vacuum line disconnected.

Then hook the line up & note the idle pressure ... it will drop approx .5lb per inch of vacuum.

salemetro

iTrader: (5)

Ah...that makes sense. Thanks!

bridges

Is it the same procedure for fi cars?

salemetro

iTrader: (5)

Let's hope so, cuz mine is LOL. Seriously though, I can't see how there would be any difference between N/A vs FI.

Old Geezer

iTrader: (3)

The IFR should also be set to a constant value if the reg is vac referenced....

joecar

+1 set the pressure with the vacuum hose disconnected.

The pressure you set it to will be needed to recalculate the IFR table; or you can set the pressure to 58 psi.

+1 IFR table will be flat (same value in all cells).