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Re: Quietest electric fuel pump
[Re: John_Kunkel]
#1935033
10/19/15 05:21 PM
10/19/15 05:21 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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On the return Q would a fitting in the (return) line with a carb jet (or similar, NPT pipe plug) drilled to a particular size give the proper amt of return flow?
live every 24 hour block of time like it's your last day on earth
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Re: Quietest electric fuel pump
[Re: John_Kunkel]
#1935048
10/19/15 05:34 PM
10/19/15 05:34 PM
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Joined: Oct 2005
Posts: 8,871
Ontario, Canada
Stanton
OP
Don't question me!
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OP
Don't question me!
Joined: Oct 2005
Posts: 8,871
Ontario, Canada
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Originally Posted By Stanton
The FITech recommendation is a 3 - 8 psi pump feeding the surge tank and this will supposedly support 1200 HP (not that I'm anywhere close to that!) Presumably they've done some testing !!!
It's not about how many horses it'll feed, it's about how long it'll feed 'em. IOW, it won't feed 1200 horses for an extended period of time but the capacity of the tank plus the inflow will probably be sufficient for the typical length of time you're producing 1200 HP (quarter mile run, dyno pull) Yeah, I understand that.
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Re: Quietest electric fuel pump
[Re: Stanton]
#1935054
10/19/15 05:45 PM
10/19/15 05:45 PM
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Joined: Oct 2005
Posts: 8,871
Ontario, Canada
Stanton
OP
Don't question me!
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OP
Don't question me!
Joined: Oct 2005
Posts: 8,871
Ontario, Canada
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On the return Q would a fitting in the (return) line with a carb jet (or similar, NPT pipe plug) drilled to a particular size give the proper amt of return flow? The problem with that is its "hit and miss". You could run a 3/8 feed line and a 1/8 return but is that enough or too much ?!?!? This is why I think they recommend a low pressure pump - adequate to keep the surge tank full "most of the time" but not enough pressure to require a return line. The alternative (in my opinion) would be more volume and a return line with a regulator set a hair below the surge tank's threshold.
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Re: Quietest electric fuel pump
[Re: Stanton]
#1935582
10/20/15 03:04 PM
10/20/15 03:04 PM
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Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
chrisnben
super stock
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super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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On the return Q would a fitting in the (return) line with a carb jet (or similar, NPT pipe plug) drilled to a particular size give the proper amt of return flow? The problem with that is its "hit and miss". You could run a 3/8 feed line and a 1/8 return but is that enough or too much ?!?!? This is why I think they recommend a low pressure pump - adequate to keep the surge tank full "most of the time" but not enough pressure to require a return line. The alternative (in my opinion) would be more volume and a return line with a regulator set a hair below the surge tank's threshold. then you are probally better off with an Aeromotive A1000 & a return regulator/ line than using the sump kit. Same size line going both ways. Size depends on the engine requirements, but -8 will feed 98%. 
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Quietest electric fuel pump
[Re: Stanton]
#1935602
10/20/15 03:38 PM
10/20/15 03:38 PM
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Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
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There is no provision on the FITech surge tank for a return line. Even though their website pics don't show it, the current version of the tank does have a return port.
The INTERNET, the MISinformation superhighway
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Re: Quietest electric fuel pump
[Re: John_Kunkel]
#1935633
10/20/15 04:22 PM
10/20/15 04:22 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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There is no provision on the FITech surge tank for a return line. Even though their website pics don't show it, the current version of the tank does have a return port. If the return is still there, run the same size return line back to the fuel tank and disable the float inside the tank. The internal high pressure pump does not require pressurized fuel to work in the can. It needs only a continuous supply of fuel. This low pressure side of the fuel system delivers fuel until the tank is full and free flows back to your main tank. Any restrictions will increase the low-side pressure dramatically.
Last edited by jbc426; 10/20/15 04:25 PM.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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