1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

EFI Fuel Pump Options

Discussion in 'TBI & EFI Conversions' started by TravisB, Jun 7, 2019.

  1. Doppleganger

    Doppleganger Supporting Member Supporting Member

    Posts:
    1,429
    Likes Received:
    2,924
    Joined:
    May 24, 2019
    Location:
    OH-MI.....just like it sounds
    First Name:
    Chris
    Truck Year:
    1985
    Truck Model:
    K20
    Engine Size:
    5.7
    Not sure about 'cheaper' but Edelbrock makes an add on pump setup (PN 36031) that goes between the mechanical pump and the new FI unit....and its adjustable from 30 - 90 psi. Whole reason was to be able to use the stock setup without replacing tanks or the switch solenoid.

    They're about $400 from Summit. I have a new in the box unit much cheaper for sale.
     
  2. Raybo135

    Raybo135 Full Access Member

    Posts:
    199
    Likes Received:
    219
    Joined:
    Jan 20, 2019
    Location:
    Arvada, Colorado
    First Name:
    Raymond
    Truck Year:
    1976
    Truck Model:
    K10 Silverado
    Engine Size:
    400
    That is the Sump pump that I have on my 1976 with an Edelbrock E-Street EFI 3600. The only problem with this setup that I see is there is no way to run a line back to the Fuel Tank as the instructions say. Mine tends to leak on warm days out of the bottom. I am going to change to an electric fuel pump and locate it right after the tank switch.
    upload_2020-3-13_15-4-54.png
     
  3. Doppleganger

    Doppleganger Supporting Member Supporting Member

    Posts:
    1,429
    Likes Received:
    2,924
    Joined:
    May 24, 2019
    Location:
    OH-MI.....just like it sounds
    First Name:
    Chris
    Truck Year:
    1985
    Truck Model:
    K20
    Engine Size:
    5.7
    I heard alot of good about it - I sold mine and the guy who bought it had 3 others. I preferred the OE-esque dual tanks / dual pumps approach.....I like redundancy. If one fails, I'm still moving. :)
     
  4. Vbb199

    Vbb199 B-rate Hillbilly Customs Supporting Member

    Age:
    26
    Posts:
    2,701
    Likes Received:
    3,036
    Joined:
    Jan 12, 2018
    Location:
    Salisbury NC
    First Name:
    Vince
    Truck Year:
    91, 89, 87
    Truck Model:
    91 Blazer V1500- "K5ton", 87 K10 Suburban, 89 Suburban R1500
    Engine Size:
    502, 350, 350
    I guess I'm gathering here, this EP381 will work in a 88-91 gas tank and sending unit correct?

    I'm in process of setting up holley efi on my k5's 502. I need 60 lbs of pressure, and what I'm seeing is, the 381 makes max 108 lbs.


    I also read about the walbro 340 that appears to go right in the sending unit as well.

    Thoughts?
     

Share This Page