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Power Strokes
6.4 Aftermarket
Regulated Return Pressure
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[QUOTE="akf250, post: 1547285, member: 2655"] I have a FASS 165 Pump with a Elite Diesel Fuel Bowl D3L3TE Kit and a Stock Fuel system after that. I finally got a gauge hooked up to my fuel system to check system pressure. I plumbed the gauge into the front of the fuel bowl D3L3TE kit block (where the temp sensor goes) and key'd the truck on. I was sitting at 4.5 - 5 PSI We spun the nut on the top of the Aeromotive Fuel Regulator IN and were able to attain a system pressure of 6.5 with a spike to 8 when first being key'd on. As far as I can tell the Fuel Regulator is maxed out. How are you guys obtaining 8 - 10 PSI of system pressure? Different springs in the Low Pressure Fuel System? Different Low Pressure Fuel System all together? I am trying to fix a issue I am having with my fuel pressure dropping rapidly under launch (4 wheel launch, burnouts, dyno hits, etc.) No issues while driving at speed and doing WOT hits (even while towing) - holds a constant 26,000+ FRP when doing hits at speed. Ran injector contribution tests alongside this and had one injector running +8 at times, the rest were withing spec. [/QUOTE]
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