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2 pumps is better than 1 / or not

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Old 02-03-05, 07:54 PM
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Question 2 pumps is better than 1 / or not

Hi
As i saw from many threads , many people likes to use 2 fuel pumps in stock fuel tank ( for single conversion specialy )
2 walbros , or 2 nippodensos , etc. All these cars seems to run without problems , when all the fuel system works fine .
I would like to know why its necessary to use two pumps , in opposition to use a big one /
Thanks.
Old 02-03-05, 08:24 PM
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One is better as two will be restricted by approximately 15-25%. When running two, you may not know when one fails. Those are the answers I received from my mechanic.

I beleive those guys are in the 500hp range. There may not be a single pump that can handle theor fuel needs.
Old 02-03-05, 08:30 PM
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Originally Posted by GoRacer
There may not be a single pump that can handle theor fuel needs.
There certainly are, but they're big, loud, mount externally, and may require a sump to be welded into the tank. People use twin pumps in the tank to keep the noise down while getting the volume of fuel they need.
Old 02-03-05, 08:32 PM
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Propably
its difficult to fit a big pump like Aeromotive 1000 in stock fuel tank !
who knows?
Old 02-03-05, 08:38 PM
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So , 2 pumps in tank is the better choice for single applications , without loud etc !
Old 02-03-05, 08:41 PM
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the aeromotive 1000 is external!
Old 02-03-05, 08:41 PM
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6x2=1x12...
Old 02-03-05, 11:12 PM
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Originally Posted by Low Impedance
the aeromotive 1000 is external!
Most people know this, he was saying as a joke that it'd be difficult to load one of those big boys into the fuel tank compared to two smaller ones. lighten up
Old 02-04-05, 09:19 AM
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You need to be making some CRAZY power to run out of options for a single fuel pump, though.

Dale
Old 02-04-05, 10:32 AM
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Originally Posted by Low Impedance
the aeromotive 1000 is external!
Per Aeromotive there is no problem running it internal ...if you can get it in

Check out: http://www.rickshotrodshop.com/StealthSeries.htm
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