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dropping pressure from 2 450s...now what

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Old 10-23-2017, 06:31 PM
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Default dropping pressure from 2 450s...now what

whats up guys, i have two 450s and id2000s in my 99 camaro and stock tank. I have the squash setup with two 450s hanging. -10 feed to -8 return. has anyone had any luck with adding a 3rd 450? Maybe 2 running all the time and one on a hobbs? I have one that runs all the time and one on a hobbs now.
Old 10-23-2017, 07:19 PM
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Chances you have another issue.... or you are putting over 1700hp to the wheels.
Old 10-23-2017, 07:42 PM
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Originally Posted by Lonnies Performance
Chances you have another issue.... or you are putting over 1700hp to the wheels.
E85 car, not pump.
Old 10-23-2017, 08:38 PM
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-10 is not quite ideal size for three 450lph pumps, but you will running more than 43 psi and your flow won't be all it could be and that would make the -10 closer to being the correct size hose unless you have a bunch of bends and fittings restricting things. If you want any more help, I think we all want to see some video of this thing drinking fuel.
Old 10-25-2017, 07:08 AM
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Default ???

Originally Posted by Hypforlife32
E85 car, not pump.
How about posting the rest of the pertinent info, such as how it's plumbed, filter[s], reg, etc.
Old 10-29-2017, 10:53 PM
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Originally Posted by Old Geezer
How about posting the rest of the pertinent info, such as how it's plumbed, filter[s], reg, etc.
-10 out of the hat into fuel filter, to y block -8 to rails and out of the front of the rails to reg and - 8 return. The only issue i could see is pressure to high in boost. up to about 80ish. with a base of 55.
Old 10-30-2017, 07:07 AM
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Question ??

Originally Posted by Hypforlife32
-10 out of the hat into fuel filter, to y block -8 to rails and out of the front of the rails to reg and - 8 return. The only issue i could see is pressure to high in boost. up to about 80ish. with a base of 55.
Does the filter have the flow capacity to handle the 2 pumps?
What's the voltage at the pumps?
Any chance they are leaking back into the tank, under high load?



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