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Old 09-13-2007, 07:19 PM   #3
UncleBob
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Join Date: Feb 2006
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Re: FPR/pump questions.

its purely a question of flow of the FPR. If the fuel pump has too much flow for the return line on the FPR, then the pressure will climb

if the feed line to the FPR is too restrictive, then the fuel pump will be limited by that, which will make it work harder for no added benefit

The question I'd be asking is, does it *need* more flow? a 255 is a popular pump for forced induction. If that is why he's installing it, he needs a boost-happy FPR anyway, but you'd want a higher flow FPR IMO
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