Anyone upgraded fuel pumps?
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Cross-Country
Joined: Jul 2020
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Anyone upgraded fuel pumps?
1994 F150 5.0. Looking to install either higher output pumps into my factory in tank units or put a complete unit in. Maybe someone has done this before. Either way, it's happening. I didn't find anything on the search. I am putting a blower on soon and know I'm gonna hear about fuel supply if I send it to the tuner as is. I am refusing to go frame rail booster pump at this point. The entire point of this is to stay very factory looking but big power (1994 standards 
). I'm also trying to stay very factory for parts reasons as well. Obviously, if I have to go up line size, everything is out the window. I doubt I'll be there though, maybe next motor.
). I'm also trying to stay very factory for parts reasons as well. Obviously, if I have to go up line size, everything is out the window. I doubt I'll be there though, maybe next motor.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
I put a 255l/hr pump in my F150 one time... actually I put 2 different pumps in... first one didn't fit at all and the second one fit with a little persuasion but only lasted 6 months.
There is or was a complete high flow FDM available at one time, I had a link somewhere I will try to dig it up.
There is or was a complete high flow FDM available at one time, I had a link somewhere I will try to dig it up.
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Cross-Country
Joined: Jul 2020
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I put a 255l/hr pump in my F150 one time... actually I put 2 different pumps in... first one didn't fit at all and the second one fit with a little persuasion but only lasted 6 months.
There is or was a complete high flow FDM available at one time, I had a link somewhere I will try to dig it up.
There is or was a complete high flow FDM available at one time, I had a link somewhere I will try to dig it up.
Kenne Bell's kit bolts to the factory lower intake and the throttle body in factory location. A K&N filter and headers will look less stock than this.
Last edited by Bignasty2; Mar 20, 2021 at 06:37 PM. Reason: Dispute with company, issue not resolved
Fleet Owner
Joined: May 2009
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From: Gilbert, PA
THANKS! was it this? ... Automotive 1994 Ford F150 5.0L (highflowfuel.com)
Kenne Bell's kit bolts to the factory lower intake and the throttle body in factory location. A K&N filter and headers will look less stock than this.
Kenne Bell's kit bolts to the factory lower intake and the throttle body in factory location. A K&N filter and headers will look less stock than this.
LOL not even close. But what ever you want to tell yourself
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Cross-Country
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Your contribution here is incalculable.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
THANKS! was it this? ... Automotive 1994 Ford F150 5.0L (highflowfuel.com)
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Cross-Country
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I emailed them. I asked for pump output vs. pressure chart, voltage requirement, and warranty. I know our trucks routinely will see less than 12v at the pumps. I don't know if that's a contributing factor in the early failure on other units or not. If they're the only player, I guess I'll have to risk it.
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Elder User
Joined: Dec 2016
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From: Mid Missouri
I emailed them. I asked for pump output vs. pressure chart, voltage requirement, and warranty. I know our trucks routinely will see less than 12v at the pumps. I don't know if that's a contributing factor in the early failure on other units or not. If they're the only player, I guess I'll have to risk it.
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Cross-Country
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It would be generally a low rpm condition/ high load/ changing load/ worn alternator/ beyond factory demand(accessories) . Not a problem for stock pumps and motors, but put in a pump that draws more current (more amps for the same volts) and it would be hard on the pump. I'm not an electrician.
Fleet Mechanic
Joined: Mar 2014
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From: Saskatchewan Canada
That drawing is surprisingly close to what already exists in the factory wiring. Big difference is the 10 ga wire from the relay to the pump and the pump to ground. What is not shown here is the tank switch and the inertia switch. The factory fuel pump relay is fed via a fusible link and 10 ga wire from the main +12 distribution point at the starter solenoid. No improvement here.
Routinely, no. I have had a problem with poor grounds causing this, but there were some maintenance conditions involved. It is a repairable issue and somewhat uncommon.
This would be true. I would suggest increasing the wire size downstream of the fuel pump relay. If you are running only one tank, you could eliminate the fuel tank switch which may be a potential trouble spot. In general, minimizing connections will minimize potential trouble spots.
Routinely, no. I have had a problem with poor grounds causing this, but there were some maintenance conditions involved. It is a repairable issue and somewhat uncommon.
Laughing Gas
Joined: Nov 2016
Posts: 853
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From: Oxnard
Subscribed. Monday when I go back to work want to print the wiring diagram shown in EllieMae's post 10 above. ~ Spring 2021 will be wiring an in tank fuel pump in my 77 F-150 during the swap over from 2150 Motorcraft carburetor to Holley Sniper EFI. Thanks EllieMae.
Fleet Owner
Joined: May 2009
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From: Gilbert, PA
Cry me a river Mr I want it to look stock so I dont want to add a second fuel pump UNDER the truck where no body will see it but I have a SUPERCHARGER bolted to the engine