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tbi fuel pressure regulator?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by leadvillek5, Mar 11, 2005.

  1. leadvillek5

    leadvillek5 Registered Member

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    ive done some seaching and found that there is an adjustable fuel regulator and a vaccum reference pressure regulator. which one is the better?
     
  2. crazy427

    crazy427 1/2 ton status

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    the vacuum refrerenced regulator is adjustable also so it is the best of both worlds.

    i am selling one ,if you are interested pm me
     
  3. Thunder

    Thunder 3/4 ton status

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    I have an adjustable FPR. But as said. The vacume FPR is the best of both worlds. Gives both economy and performance. without a bunch of tuneing.
     
  4. fortcollinsram

    fortcollinsram 1/2 ton status

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    I had the JET FPR and it SUCKED just as bad as the stock regulator. You can crank up the FP but then the truck runs pig rich at idle. The VRFPR is awesome. keeps 12psi at idle and boosts it to 18psi at WOT.


    Here you can see the VRFPR and the feed line adapter for my FP gauge...[​IMG]
     
  5. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Ok, i'll bite. What does this VRFPR do? Is it an adjustable regulator that also helps richen fuel at WOT? How does it work? How much do these things go for and why are you selling yours?
     
  6. sweetk30

    sweetk30 professional hooker Premium Member

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    also where can i get one new if i want one thanks.
     
  7. crazy427

    crazy427 1/2 ton status

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    The vacuum refrenced regulator is adjustable . what you do is trun the srcew in the bottom to adjust max fuel pressure. then you hook up a manifold vacuum source to the regulator so at idle ( when vacuum is high) it puuls the fuel pressure down so the truck doesnt run rich as hell. then when you get on the gas vacuum drops and fuel pressure increases when you need it. I have a post in the seller forum with my VRFPR , cusion valve ( gets installed in the vacuum line so the drop and increase in vacuum isnt instant and the fuel flow is gradual and not a hit) and a set of venom high perfomace injectors that flow 10 % more than stock injectors.
    http://coloradok5.com/forums/showthread.php?t=131225
    I removed the set -up becuase i am now running a 383 and the injectors couldnt support the fuel flow i needed. So i am now running a set of 80lbs injectors with a stock modified regulator set to 12 lbs and a tpi fuel pump.

    PM me if interested Joe
     
  8. crazy427

    crazy427 1/2 ton status

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    Dealer carries them new, if you do a search you should be able to find a part #.
     
  9. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    I like the sound of this reg but can't find it on the net. Any idea who makes them? Thanks.
     
  10. leadvillek5

    leadvillek5 Registered Member

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    vfpr

    thank you for your post. i found the PART# gm17113186 around $62.00 my cost new. how much are you selling just the vfpr? cannot afford the injectors but definitly need them for my engine application.
     
  11. dyeager535

    dyeager535 1 ton status Premium Member

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    OUR PRICE: $43.97 (gmpartsdirect.com)
     
  12. leadvillek5

    leadvillek5 Registered Member

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    cool thanks for the heads up on that $ and site:D
     
  13. dyeager535

    dyeager535 1 ton status Premium Member

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    Just watch shipping though...I believe they have gone to a percentage of cost for shipping/handling, which should be better than it used to be, but still seems high. That's how they make their money though.

    Still cheaper than buying local for me, my dealers here suck.
     
  14. tch777

    tch777 1/2 ton status

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    Okay just a couple quick questions:
    Where is the best place to T into for the vacuum?
    And is the factory vacuum regulator adjustable?
    If so do you need to take the injector pod off to adjust or not?

    Thanks

    Tim
     
  15. mouse

    mouse 1/2 ton status

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    Sounds like this could be a new tech write up. Show install, sources and how it works!
     
  16. crash81

    crash81 1/2 ton status

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    what is the part # for the vrfpr i looked for it but had no luck.
     

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