fuel system operating pressure pre and post e fuel - Ford Powerstroke Diesel Forum
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Old 02-03-2012, 07:40 AM
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fuel system operating pressure pre and post e fuel

looking for a couple numbers here:

stock mechanical pump output
stock fuel pressure reg setting

SD electric pump output
aftermarket pressure reg setting
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Old 02-03-2012, 05:28 PM
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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
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Old 02-04-2012, 10:23 AM
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So 50 PSI is what the stock reg runs at? Whats the reasoning for setting the adjustable reg higher?
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Old 02-04-2012, 02:33 PM
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according to Jim at rosewood the optimum pressure for our injectors is 65 psi
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Old 02-04-2012, 02:35 PM
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does that apply to stock injectors or aftermarket?
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Old 02-04-2012, 02:41 PM
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i would assume all, but i don't know never thought about it
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Old 02-04-2012, 02:45 PM
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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.
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