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Stinger for big cam cummins. Need help asap!!!!

Discussion in 'Trucks [ Eighteen Wheelers ]' started by cjreckart, Jul 29, 2012.

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  1. Jul 29, 2012 #1
    cjreckart

    cjreckart Bobtail Member

    22
    0
    Dec 3, 2009
    Uniontown Pa
    0
    I have a 89 int with a 400 big cam iv in it. We have a sled pull at the local fair tomorrow nite and i want to do some more tweaking. Guy told bout a stinger but didnt give me real good details anyone that can help me would be greatly appreciated. I have a blank button with 13 shims with a ht4c charger and i forget what injectors it has. Truck will turn over 2800 rpm but it looses all its smoke like it could use more fuel.

    From the description he gave me was to pull the cover off the button cover and tap it with a 1/4 fine thread bolt and adjust it so its within a 1/8 to 1/4 inch away from the idle adjustment screw. My question is can i drive it to the pull this way or do i adjust it at the pull? Next question is when i get to the end of the track and push the clutch in is the motor gona run away?
     
    cjreckart, Jul 29, 2012
    cjreckart, Jul 29, 2012
    #1
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  3. Jul 30, 2012 #2
    bender

    bender Road Train Member

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    Jul 20, 2010
    Don't Kid Yourself
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    I don't think the stinger will help you, you're already at 2800 rpm. Have you removed the ball in the end of the throttle shaft and backed out the fuel screw? This will allow more fuel volume to the injectors.
     
    bender, Jul 30, 2012
    bender, Jul 30, 2012
    #2
  4. Jul 30, 2012 #3
    cjreckart

    cjreckart Bobtail Member

    22
    0
    Dec 3, 2009
    Uniontown Pa
    0
    I have i believe its 6 full turns out
     
    cjreckart, Jul 30, 2012
    cjreckart, Jul 30, 2012
    #3
  5. Jul 30, 2012 #4
    bender

    bender Road Train Member

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    Don't Kid Yourself
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    You can easily raise fuel rail pressure by partially restricting the return fuel line.
     
    bender, Jul 30, 2012
    bender, Jul 30, 2012
    #4
  7. Jul 30, 2012 #5
    cjreckart

    cjreckart Bobtail Member

    22
    0
    Dec 3, 2009
    Uniontown Pa
    0
    Whats the best way of doing so ? Im not real familiar with the big cams ive had this truck since 01 tinkering here and ther with it
     
    cjreckart, Jul 30, 2012
    cjreckart, Jul 30, 2012
    #5
  8. Jul 30, 2012 #6
    bender

    bender Road Train Member

    2,105
    1,360
    Jul 20, 2010
    Don't Kid Yourself
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    You can pinch the return hose with a brake hose clamp or similar.
     
    bender, Jul 30, 2012
    bender, Jul 30, 2012
    #6
  9. Jul 30, 2012 #7
    Autocar

    Autocar Road Train Member

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    Apr 28, 2012
    The Hot Rod Shop Oxford, AL
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    The school of Vise Grip technology, all Trans Con Lines drivers were graduates of it, back in the day.
     
    Autocar, Jul 30, 2012
    Autocar, Jul 30, 2012
    #7
    puncher Thanks this.
  10. Jul 30, 2012 #8
    puncher

    puncher Medium Load Member

    540
    358
    Feb 12, 2010
    Tn.
    0
    LOL and if you got them too tight it would cackel like an old red hen.
     
    puncher, Jul 30, 2012
    puncher, Jul 30, 2012
    #8
  11. Jul 30, 2012 #9
    puncher

    puncher Medium Load Member

    540
    358
    Feb 12, 2010
    Tn.
    0
    Very true, but didn't we used to take the return line loose and install a washer to restrict the fuel some but still allow some relief to the pump ?
     
    puncher, Jul 30, 2012
    puncher, Jul 30, 2012
    #9
  12. Jul 30, 2012 #10
    stranger

    stranger Road Train Member

    3,640
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    Oct 10, 2006
    NC
    0
    We used to take a dime, drill a very small hole in it, then put it in the return line fitting at the fuel tank.
     
    stranger, Jul 30, 2012
    stranger, Jul 30, 2012
    #10
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