1979 f-100 mechanical fuel pump on maverick engine

Discussion in 'Technical' started by maverick7072, Dec 30, 2014.

  1. maverick7072

    maverick7072 Member

    Joined:
    Sep 13, 2013
    Messages:
    429
    Likes Received:
    15
    Trophy Points:
    61
    Location:
    alabama
    Vehicle:
    1970-1972 mavericks
    didn't know how to title this one but I was talking with a friend of mine about mechanical fuel pumps my 70 mav has a pump listed for a 1979 f-100 .does the truck pump have more psi than the maverick pump ,he says being that the truck had a tank further away from the engine than the maverick that it was possible the truck pumps are a little stronger
     
    maverick7072, Dec 30, 2014
    #1
  2. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,589
    Likes Received:
    2,935
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    I thought the truck tank was behind the front seat...:huh:
     
    71gold, Dec 30, 2014
    #2
  3. maverick7072

    maverick7072 Member

    Joined:
    Sep 13, 2013
    Messages:
    429
    Likes Received:
    15
    Trophy Points:
    61
    Location:
    alabama
    Vehicle:
    1970-1972 mavericks
    not in 1979 it was underneath the bed at the rear
     
    maverick7072, Dec 30, 2014
    #3
  4. bmcdaniel

    bmcdaniel Senile Member Supporting Member

    Joined:
    Jul 2, 2002
    Messages:
    6,827
    Likes Received:
    682
    Trophy Points:
    318
    Location:
    York. PA
    Vehicle:
    '70 Maverick Grabber
    The output (psi) of the pump has nothing to do with how far away the tank is. The carb determines what pump output pressure is required, can't have so much that the needle is forced off the seat. Mechanical pumps are pretty good suckers, once they get the fuel flowing from the tank a siphon effect takes over.
     
    bmcdaniel, Dec 30, 2014
    #4
  5. rthomas771

    rthomas771 Member

    Joined:
    Jan 22, 2008
    Messages:
    8,075
    Likes Received:
    963
    Trophy Points:
    498
    Garage:
    1
    Location:
    GA
    Vehicle:
    '74 Maverick 302 5-Speed.'60 Falcon V8. '63.5 Falcon HT
    Wasn't the 79 timing chain cover different than the '70 cover? If so, compare the arm length and bends. As far as psi...it should be the same
     
    rthomas771, Dec 30, 2014
    #5
  6. Krazy Comet

    Krazy Comet Tom

    Joined:
    Sep 13, 2012
    Messages:
    7,719
    Likes Received:
    2,434
    Trophy Points:
    531
    Garage:
    1
    Location:
    Chesapeake VA
    Vehicle:
    1972 Comet GT clone 306 . 1969 Fairlane Cobra 428CJ 1988 T-Bird awaiting 331 ..
    Tell your buddy to stop over thinking, anything less than 50-60ft isn't going to to require any extra pressure... I don't know of any physical differences in arm but wouldn't hurt to compare...
     
    Krazy Comet, Dec 30, 2014
    #6
  7. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    There's no difference in the timing cover as to require a different pump arm. As everyone else has pointed out, you do not need more pressure to feed a carb. You do not need more flow either than what the stock pump puts out. I'm feeding three carbs with a 30 gal/hr electric pump at WOT on my 331. If it used all 30 gals, that translates out to 2 mpg at 60 mph.
     
    baddad457, Jan 1, 2015
    #7

Share This Page