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Inline fuel pump question

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Old Jun 27, 2004 | 06:59 AM
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98AccordEX's Avatar
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Default Inline fuel pump question

alright i'm sorta new to upgrading fuel systems so please dont give me ****

i put a fuel cell in my EF. now i need to hook up my pump and filter. i have an MSD inline pump and just some cheap filter. should i put the pump close to the tank or the rail? should i put the pump before the filter? or the other way? thanks
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Old Jun 27, 2004 | 11:19 AM
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TECH43 RACING INC.'s Avatar
 
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Default Re: Inline fuel pump question (98AccordEX)

cell--filter--pump--------------REGULATOR/rail
L________________________________I
(return line) -
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Old Jun 27, 2004 | 11:33 AM
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Default Re: Inline fuel pump question (TECH43 RACING INC.)

The pump placement doesn't really matter so long as you've got it after a filter as TECH43 said. Most commonly we just mount them up front on cars with stock fuel systems (lines, filters, etc.) simply to get them inline after the filter. There is however less clutter when you mount them in the rear. Just my $0.02 tho, good luck
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Old Jun 27, 2004 | 12:26 PM
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Default Re: Inline fuel pump question (Kataku2K3)

1 do 2 filters on Cells\Sumps...

10 Mic Pre and 100 Mic After Pump.
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Old Jun 28, 2004 | 06:13 AM
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Default Re: Inline fuel pump question (Suprdave)

Well, I am not the hugest drag racer in the world but I do have a Fuel Cell in a street driven '86 Prelude Si. Its a pain..the old tank had about 1000 pin hole leaks in it, and it would cost over 400 for a new tank. So hello Summit 16 Gal fuel cell. Anywho. I plumbed one of the pickups through a filter, and then to the pump as close as possible because I have always heard "It is better to push fuel than to pull it." And, did you have An fittings on the filter and the pump? Because it costed me 40 dollars for 2 fittings for -8AN to 3/8 NPT hose because i just used a brand new oem replacement pump. Mounted under the tire hump in the trunk.
It also sucks driving around everyday without a fuel gauge..you have to do fuel math.
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Old Jun 28, 2004 | 06:17 AM
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Old Jun 28, 2004 | 07:02 AM
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that is the weldon recomended setup.

how much power are you running, and which msd pump is it. If u are running a lot of power in the car u might want to get a weldon.

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Old Jun 28, 2004 | 01:14 PM
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98AccordEX's Avatar
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Default Re: (Bottle)

i'm not running much power right now. just a stock B16 with bolt ons. gonna go turbo once everything is running good. the pump i have is this

this may be a dumb question but i need to make sure i have it right. that pic shows that the return line goes to the top of the cell. isnt that the vent? the way i have it now is the sending line coming out of the left outlet at the back bottom and the return line coming in the right side at the back bottom
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Old Jun 28, 2004 | 01:39 PM
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TECH43 RACING INC.'s Avatar
 
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Default Re: (98AccordEX)

contrary to popular belief, you can run the fuel return line below the fuel level . remember its pressurized. with your setup, probably 50 psi or so.
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Old Jun 28, 2004 | 02:06 PM
  #10  
98AccordEX's Avatar
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Default Re: (TECH43 RACING INC.)

so i'm alright having both of the lines beside eachother? i figured it would be better since it will be putting fuel back in the tank right where it needs to go out
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Old Jun 28, 2004 | 02:07 PM
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TECH43 RACING INC.'s Avatar
 
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From: LOS ANGELES, CA
Default Re: (98AccordEX)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98AccordEX &raquo;</TD></TR><TR><TD CLASS="quote">[/img]

this may be a dumb question but i need to make sure i have it right. that pic shows that the return line goes to the top of the cell. isnt that the vent? the way i have it now is the sending line coming out of the left outlet at the back bottom and the return line coming in the right side at the back bottom</TD></TR></TABLE>

thats fine.
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Old Jun 28, 2004 | 03:28 PM
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Default Re: (TECH43 RACING INC.)

thanks everyone for the help
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Old Jun 28, 2004 | 04:47 PM
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this is the game right here

http://www.titanmotorsports.com/we60fupu.html



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Old Jun 28, 2004 | 06:29 PM
  #14  
98AccordEX's Avatar
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Default Re: (Bottle)

i dont think i need a weldon pump just yet

so i need a little more help. everywhere i searched i found that i should tap into the yellow/green wire for the power to the pump. but i dont see a yellow/green wire from the connector that went to the stock pump. theres 4 wires. yellow/black, yellow/white, black, black/white. does anyone know which one i need to tap into? should i use the black wire as my ground? or just ground it to the chassis?

btw - this is a 90 Civic DX hatchback
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Old Jun 28, 2004 | 07:24 PM
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Default Re: (TECH43 RACING INC.)

TECH43 RACING INC.)
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Old Jun 29, 2004 | 01:58 PM
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Default Re: Inline fuel pump question (98AccordEX)

no one can tell me which wire i need?
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Old Jul 2, 2004 | 06:51 PM
  #17  
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Default Re: Inline fuel pump question (98AccordEX)

I'm not sure with your car...but it used to have an in-tank pump right? Well if your old wires went to the top of your tank one of them might have been your sending unit wire, for your gauge. ANd one for your pump..not sure. but I would see if they both have juice when you turn the key on, it will be powered for a few seconds, use a tester. if the other one is constant when you turn your key on, then that is probably a sending unit wire or something. But crank the engine over and whichever one is getting juice when the engine is cranking, but when you stop cranking it only has juice for a few more seconds, that is your pump wire...wow I hope that made sense. I had this problem with my CRX but all I did was hook it up with from the fuseblock with a switch and a fuse, and use a switch to turn the pump on. keep me posted..
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