fuel system operating pressure pre and post e fuel

[Boise Outlaw]

looking for a couple numbers here:

stock mechanical pump output
stock fuel pressure reg setting

SD electric pump output
aftermarket pressure reg setting

[terryknight]

I have a fuel pressure gauge on my truck, mech fuel pump, i see a little under 50 psi at idle. I hear that most people with e fuel set the regulated at 65psi

[Boise Outlaw]

So 50 PSI is what the stock reg runs at? Whats the reasoning for setting the adjustable reg higher?

[terryknight]

according to Jim at rosewood the optimum pressure for our injectors is 65 psi

[Boise Outlaw]

does that apply to stock injectors or aftermarket?

[terryknight]

i would assume all, but i don't know never thought about it

[mjonesjr]

Jim recommends 65 PSI for all injectors in the PSD, stock and aftermarket.

When I was running the stock fuel system along with the BB mod, I was seeing about 55 PSI at idle. I would say when running you could lose up to 5-10 PSI with the stock pump.

Now that I am running the efuel setup, I have my system regulated to 66 PSI at idle. When driving, it dips down to 65 PSI.