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At local track today TNT

Discussion in 'Street/strip 400/430/455' started by Jeremy Zepnick, May 31, 2025.

Page 3 of 7
  1. dan zepnick

    dan zepnick Well-Known Member

    Ya you should go down it again sometime! Bring a buick!! Lol
     
    dan zepnick, Jun 5, 2025
    #41
    Guy Parquette likes this.
  2. Jim Weise

    Jim Weise EFI/DIS 482

    Ya, something going on with those pumps.. I put them on several low to mid 500 HP builds here in the past, and had feedback from several guys that they were having fuel delivery issues, 2 of the 3 sent the pump back and had it converted to the higher HP model.. the third guy is still working on it, last I heard.

    JW
     
    Jim Weise, Jun 5, 2025
    #42
    Dadrider and Mark Demko like this.
  3. Mark Demko

    Mark Demko Well-Known Member

    Hmmmm interesting as I have the same pump on my 350, I’m not near 500 hp tho but the fuel pressure does drop during a runo_O
     
    Mark Demko, Jun 5, 2025
    #43
    VET and Dadrider like this.
  4. VET

    VET Navy Vet, Founders Club

    VET, Jun 5, 2025
    #44
    dan zepnick, Dadrider, Jeremy Zepnick and 1 other person like this.
  5. BQUICK

    BQUICK Gold Level Contributor

    I run an EGT gauge with MAX memory function. Lets you know if leaning out on top end. When I am lean I can see as high as 1475deg, rich as low as 1300 thru the traps.
     
    BQUICK, Jun 5, 2025
    #45
    dan zepnick, Mark Demko and VET like this.
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    LARRY70GS, Jun 5, 2025
    #46
  7. Guy Parquette

    Guy Parquette Platinum Level Contributor

    Will try, but don’t be too disappointed if I take my Lightning!
     
    Last edited: Jun 5, 2025
    Guy Parquette, Jun 5, 2025
    #47
    dan zepnick and FLGS400 like this.
  8. Jim Weise

    Jim Weise EFI/DIS 482


    He needs a fuel pressure gauge first.. trying to tune with a wideband if you don't have adequate fuel delivery is tremendously frustrating.

    Yes a wideband will help him tune down the road, but I think he's in the ballpark now, until it starts running out of fuel, which limits his performance potential, while risking engine damage. He's 7-8 MPH off of where he should be with that combo.

    The most obvious cause for that is not keeping the bowls full downtrack.

    JW
     
    Jim Weise, Jun 5, 2025
    #48
    FLGS400, Jeremy Zepnick and Dadrider like this.
  9. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    LARRY70GS, Jun 5, 2025
    #49
    FLGS400 and Jeremy Zepnick like this.
  10. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Almost $300 well God damn. I might look for a cheaper one lol
     
    Jeremy Zepnick, Jun 5, 2025
    #50
  11. hugger

    hugger Well-Known Member

    Hood mount...$70
     
    hugger, Jun 5, 2025
    #51
  12. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Nothing is mounting to my hood lol
     
    Jeremy Zepnick, Jun 5, 2025
    #52
    dan zepnick likes this.
  13. Mark Demko

    Mark Demko Well-Known Member

    Yeah they’re pricey for a gauge!
     
    Mark Demko, Jun 6, 2025
    #53
  14. got_tork

    got_tork Well-Known Member

    That one is electric that why its expensive.
    Mechanical is like $80 external mount.If you wanna put in the car a pressure isolater is required about $125.
    Fuel in &antifreeze to gauge.
    If you FB Marketplace theres always all kinda gauges on there.
    Chris
     
    got_tork, Jun 6, 2025
    #54
    cjeboyle likes this.
  15. hugger

    hugger Well-Known Member

    You don't mount it....you put it on the cowl and zip tie it in place then take it off first street driving
     
    hugger, Jun 6, 2025
    #55
    Mark Demko likes this.
  16. Jeremy Zepnick

    Jeremy Zepnick STEELMAN

    Yea Larry you can advertise all you want on that $300 gage, not gonna happen. Lol wayyy too over priced.
     
    Jeremy Zepnick, Jun 6, 2025
    #56
  17. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    I know it is. When I bought it, it was 100.00 cheaper.:rolleyes: Just the sender alone is 100.00. :eek: It's expensive because it is electric. You don't want to bring fuel into the passenger compartment, it's dangerous.
    That's why you need an isolator for a gauge inside, or keep it outside on the cowl as Ethan suggested. BTW, the isolators are well over 100.00 alone,

    https://www.summitracing.com/search/part-type/fuel-pressure-isolators

    This is an expensive hobby Jeremy.:)
     
    Last edited: Jun 7, 2025
    LARRY70GS, Jun 7, 2025
    #57
    dan zepnick, Dadrider, Steve Reynolds and 2 others like this.
  18. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    That sounds like the best option. Is track tech OK with that? The zip tie I mean.
     
    Last edited: Jun 7, 2025
    LARRY70GS, Jun 7, 2025
    #58
    dan zepnick likes this.
  19. hugger

    hugger Well-Known Member

    Yeah....if they start kicking guys out for zip ties there won't be any drag racing ha
     
    hugger, Jun 7, 2025
    #59
    Guy Parquette, 12lives, Mark Demko and 6 others like this.
  20. cjeboyle

    cjeboyle Platinum Level Contributor

    I find it interesting that most of us will bring oil into the passenger compartment but frown on gas. I do like the isolator setup, I didn’t know that was an option. With what and how do you fill the line from the isolator to the gauge?
    Cliff
     
    cjeboyle, Jun 7, 2025
    #60
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