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Nnbs fuel bucket dual pumps

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Old 05-05-2016, 01:32 PM
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Default Nnbs fuel bucket dual pumps

Does anyone know at what point will the stock bucket dry up with 2 Walbro 450 pumps in the tank on a 2012 flex fuel Silverado?
Old 05-05-2016, 04:08 PM
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Originally Posted by rednekferlife101
Does anyone know at what point will the stock bucket dry up with 2 Walbro 450 pumps in the tank on a 2012 flex fuel Silverado?
Running twin 450's in an 07 NNBS bucket. No holes cut. Not boosted yet but have had no problems at 1/4 tank. When I pulled pump assembly, gas guage was at a 1/4 tank and fuel was slightly above bucket level. Obviously only running 1 pump until I get my Procharger on.


Old 05-05-2016, 04:19 PM
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So you're running the fuel sock outside the bucket? Or is that a fuel return? Can't tell what the black 90 or T is that comes out of your bucket to th big sock. But thanks gives me a good idea of how 2 450's fit in the stock bucket I haven't had mine apart yet to see how they will fit!
Old 05-05-2016, 04:24 PM
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Also are you running the stock intake manifold? If so what did you do for rails with the return fuel system? I know Holley makes a nice set for $140 says they fit ls1,2,3,6 and l99 but nothing about l9h or l92 truck manifolds. Might try them see if they fit and I can keep my fic 1000cc injectors.
Old 05-05-2016, 05:14 PM
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Originally Posted by rednekferlife101
Also are you running the stock intake manifold? If so what did you do for rails with the return fuel system? I know Holley makes a nice set for $140 says they fit ls1,2,3,6 and l99 but nothing about l9h or l92 truck manifolds. Might try them see if they fit and I can keep my fic 1000cc injectors.
PM me your number. I do have Holly rails.

Adam
Old 08-07-2017, 05:44 PM
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Do either of you guys have more pictures of your dual 450 installs?
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ertoys (01-29-2020)
Old 08-08-2017, 10:34 AM
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Originally Posted by Mike454SS
Do either of you guys have more pictures of your dual 450 installs?
PM me with your number and I can text more.
Adam
Old 01-23-2020, 01:28 AM
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Originally Posted by LongBlue
Running twin 450's in an 07 NNBS bucket. No holes cut. Not boosted yet but have had no problems at 1/4 tank. When I pulled pump assembly, gas guage was at a 1/4 tank and fuel was slightly above bucket level. Obviously only running 1 pump until I get my Procharger on.



I know old thread. Sorry but working this now. Want to know did you by pass the FPCM
Old 01-23-2020, 10:41 AM
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Originally Posted by mkb4x4
I know old thread. Sorry but working this now. Want to know did you by pass the FPCM
Avoid the headache, just bypass the FPCM.
Specially on a dual setup.
Old 01-23-2020, 11:01 AM
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Originally Posted by kaze_v8
Avoid the headache, just bypass the FPCM.
Specially on a dual setup.

just tryin to divert CEL really.


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