05-16-2018, 03:35 PM
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CC Member
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Join Date: Feb 2006
Location: Gilroy,
CA
Cobra Make, Engine: SPF 2291, Whipple Blown & Injected 4V ModMotor
Posts: 2,725
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Not Ranked
Quote:
Originally Posted by eschaider
Fuel line sizing can be a challenging task for both the feed and return side lines ...
Electric pumps pump their max flow rate the moment you turn them on. If you have a 250 HP capable fuel system and a 200 HP engine, when you are driving around town using 25 HP to move the car, you actually return 225 HP worth of fuel (250-25) to the tank. That means a prudent fuel system designer would provide a return capability nearly equal to the feed capability.
Aeroquip has an excellent page on fluid velocity (volume) through their hose and how to select the proper hose sizing to optimize this dynamic...
Ed
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Quote:
Originally Posted by Apex_speed
... I'm visiting a friend with a hydraulic supply house tomorrow and he thinks he can put something together that will fit. Possibly -4.
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This would be a mistake of considerable proportions.
Ed
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