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Power Strokes
7.3 Tech
My "New" Airtex fuel pump...... A question
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[QUOTE="TARM, post: 94079, member: 578"] On a stock system 70 is not excessive especially on a stock system. In fact I would run 75 given the fuel starvation issues of a stock system. But even with 65psi being fine it does not make it a satisfactory reason for pressure dropping from 70-65 for no reason. I would not want to run a pump continuously at its max psi. These pumps should be able to hold 80 psi + The OEM bosch pumps are rated for 100 PSI have check valve in the outlet fitting and thermal overload and the flow rate is very even from 0-100 psi where most pumps tend to drop off significantly with pressure increases. Airtex pump are made in china Bosch in Europe and USA. Is it possible the issue is your regulator and the sound difference of the pump is the fact the reg is changing the amount its bypassing thus changing the load on the pump. I woudl also pick up a fuel gauge and see whats going on while driving and doing some hard pulls. [/QUOTE]
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My "New" Airtex fuel pump...... A question
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