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fuel pressure regulator plumbing questions

Discussion in 'The Hokey Ass Message Board' started by shocker998md, Mar 5, 2014.

  1. shocker998md
    Joined: May 17, 2009
    Posts: 878

    shocker998md
    Member

    I have some questions about plumbing in a fuel pressure regulator for an edelbrock carb. Ive got a 390 with the factory mechanical fuel pump. I have a low pressure holley regulator, a liquid filled jegs guage, a fram fuel filter and a 600 cfm edelbrock carb.

    Ive been doing some googling, but can any shed some light on how to plumb it up so it doesnt look cheap. Right now Ive got a rubber line off the pump, a filter spliced in, and the guage spliced it. It looks pretty cheap and ghetto and I figure that since I need to plumb in the regulator Ill fix it all up.<O:p</O:p

    Thanks guys!<O:p</O:p
     
    Last edited: Mar 5, 2014
  2. Hardline with tight crisp bends always look best IMO.
     
  3. Mike51Merc
    Joined: Dec 5, 2008
    Posts: 3,855

    Mike51Merc
    Member

    What he said.

    Beware of that liquid filled gauge. They have a tendency to drop to zero when they get hot, leading you to believe you lost all fuel pressure.
     
  4. shocker998md
    Joined: May 17, 2009
    Posts: 878

    shocker998md
    Member


  5. saltflats
    Joined: Aug 14, 2007
    Posts: 12,601

    saltflats
    Member
    from Missouri

    Can you fab up a bracket say off the manifold or cylinder head to hold the regulator then hard line to it. Then you could put a fitting on the outlet with a place for the gauge then run line to carb.
     
  6. fsae0607
    Joined: Apr 3, 2012
    Posts: 872

    fsae0607
    Member

    Hard line, with MINIMAL rubber hose for strain relief (e.g. hard line from the tank/framerail to the fuel pump).

    Invest in a good set of tube benders and flare tool, take your time routing and bending and it'll look bitchin'!
     
  7. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    Unless it is an early good looking regulator I would not bother with one on your set up. No need for a regulator on a mechanical pump and a modern carb. IMHO
     
  8. shocker998md
    Joined: May 17, 2009
    Posts: 878

    shocker998md
    Member

    No its a new ugly one but on initial start up I'm getting about 9-10 psi and then when warm is dropping to 8.

    I'm googling decent tight radius benders without breaking the bank.
     
  9. I agree. I have never had a problem running a edelbrock without a regulator on a mechanical pump.

    Posted using the Full Custom H.A.M.B. App!
     
  10. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    If it's not flooding you don't have a problem to correct. I'm running dual 97s on my Studebaker engine with a stock pump and no problems at all. Everyone says to keep the pressure at 2.5 lbs. I bought it this way and never checked the pressure. I don't care what the pressure is as long as it doesn't flood.
     
  11. fsae0607
    Joined: Apr 3, 2012
    Posts: 872

    fsae0607
    Member

    Shocker, while you're at it if you got the scratch to spare, think about Eastwood's flare tool:

    http://www.eastwood.com/professional-brake-tubing-flaring-tool.html

    I love this tool and I've made fuel and brake lines for my truck, no leaks on the first try. Try and get a good flare tool. Nothing's worse than bending up lines all nice and all and having leaks from a crappy tool.
     
  12. tommy
    Joined: Mar 3, 2001
    Posts: 14,757

    tommy
    Member Emeritus

    Damn 250.00 does it bent it self for you??? is it motorized? That would pay for all the tubing that I have replaced all these years using good old hand tools and a cheap flaring tool. You have to bend a lot of tubing to make that cost effective. IMHO
     
  13. fsae0607
    Joined: Apr 3, 2012
    Posts: 872

    fsae0607
    Member

    It goes on sale often. I got mine for $200. I agree with using what you got, but sometimes when I see an awesome well-designed tool, I just gotta have it!

    Buying tools is going to be the death of me...
     
  14. stimpy
    Joined: Apr 16, 2006
    Posts: 3,546

    stimpy

    I prefer the master cool hydraulic unit as you can do stainless easily , and it cost as much as the manual eastwood unit . plus it can be used to adapt to other flairs ,ike ISo. An , and swedging, and the oem fuel flares .

    but for bending the eastman , not eastwood , bender is the way to go . I am on my 3rd one , one walked away and I wore out one .
     

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