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Power Strokes
7.3 Aftermarket
Fuel pump setup
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[QUOTE="brian42, post: 1519661, member: 30510"] I put in a new Bosch pump when I put in 160/80s. I have the medium spring in my FRx and I idle at 62psi. I don't mash the throttle (worn tires) but a hard-ish launch to freeway speeds fuel pressure might dip to 55 psi. That's in my GH Street tune. The Bosch pump is super quiet compared to my OEM pump. I am sure some of the noise was from the fact that it was probably tired at 15 years old with 305K miles on it when I removed it. [/QUOTE]
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