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Does staggered jetting a Holley Carb really work?

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  • Does staggered jetting a Holley Carb really work?

    http://www.bangshift.com/blog/Does-s...ally-work.html

  • #2
    Re: Does staggered jetting a Holley Carb really work?

    It seems like this kind of change would be even greater on an engine with equally spaced ports and a single carb like a converted LS or a Ford. Stock Eliminator guys would would kill for 5 horse across the power band at 500 HP.
    Drag Week 2006 & 2012 - Winner Street Race Big Block Naturally Aspirated - R/U 2007 Broke DW '05 and Drag Weekend '15 Coincidence?

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    • #3
      Re: Does staggered jetting a Holley Carb really work?

      good read. learned something.

      if the msd programmable can be altered per cylinder...

      brut of real draft and less gadgets in modern day can still be a win.
      Previously boxer3main
      the death rate and fairy tales cannot kill the nature left behind.

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      • #4
        Re: Does staggered jetting a Holley Carb really work?

        now go back and test a 8 barrel intake with webers on top of each port and tune it.. per cyl.

        or even a tri power set up. bet they make the single holley look silly, a/r across the board

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        • #5
          Re: Does staggered jetting a Holley Carb really work?

          Ray Barton shared with us bangshifters that on his dual quad superstock engines, to achieve cylinder-to-cylinder AFR balance it was common to have a spread of 15 jet sizes or more, between smallest and largest.

          in tuning that pro stock Hemi with the FAST XFI system, we learned that there was as much as a THIRTY FIVE PERCENT spread in fuel demand between individual cylinders. We had cylinders in the 10s AFR, and also in the 15s...!!! but on a single O2 sensor it showed a "happy 12.5:1 average"


          From my limited, amateur experiences: the more aggressive your cam profile and build, the more you need to observe AFRs in each cylinder.
          www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!

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