New Edelbrock AV2 Carb

General Mopar Tech Discussions

  1. R/T

    R/T Well-Known Member

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    Has anyone tried the new Edelbrock AV2 carburator, it promises better response and fuel savings or is it just alot of nonsense?
     
  2. triggerfish

    triggerfish Well-Known Member

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    I was going to get one but they don't have an 800 AVS2, only the 650.
     
  3. T2R9

    T2R9 FBBO Gold Member FBBO Gold Member

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    • triggerfish

      triggerfish Well-Known Member

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    • Worker Bee

      Worker Bee Member

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      I replaced the factory Holley 4160 with a Edelbrock AVS2 carb and I love it. I haven't driven it enough to know if the mpg has improved.
      IMG_4449.JPG
       
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      • R/T

        R/T Well-Known Member

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        Let me re-phrase the question, Edelbrock has come up with a new mouse trap, the primary annular booster, replaces the age old regular fuel dump, the new carburator is called the AV2, not AVS, does any one know if this new feature, used for donkey ages in Jet engines, annular can discharge, is really as good as they claim or is it just propaganda marketing ?
         
      • Worker Bee

        Worker Bee Member

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      • Worker Bee

        Worker Bee Member

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        It's called AVS2

         
      • beanhead

        beanhead Well-Known Member

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        Well generally speaking, annular discharge boosters do help with lower-end response. Especially on larger carbs or lower vacuum engines that may give up a tad down low. The common theory is that they don't benefit the WOT and may actually hamper it, very slightly. If they have annular boosters on the primaries only, who knows...maybe an attempt at a 'best of both worlds' setup?
         
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        • JJ383RR

          JJ383RR Member

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          I put one on my 69 300 this year. Love it. No Stumble of idle, very responsive. Don't think I gained any mpg tho..
           
        • threewood

          threewood FBBO Gold Member FBBO Gold Member

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          Very interesting! I have the standard 1812 800cfm Thunder...I would guess the boosters would fit it if/when the 800cfm AVS2 comes out. I'd try it.
           
        • Bee1971

          Bee1971 Well-Known Member

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          I am also waiting on a 800 AVS2 Manual Choke

          I have 4 / 5 months to wait , see what happens
           
        • Bee1971

          Bee1971 Well-Known Member

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          • Joske2

            Joske2 FBBO Gold Member FBBO Gold Member

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            Used them 4 times now, 2 500's and 2 650, in each case much better throttle response, no bog of idle anymore.
            I changed a 650 performer with a 650 AVS2 on a 383, and a 750 performer with a 650 AVS2 on a 440.
            I don't feel a difference in power, maybe there is when you put it on the dyno, i don't know, but in regular traffic, much better.
             
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            • oldbee

              oldbee FBBO Gold Member FBBO Gold Member

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              Thanks bee1971, didnt know about the drawing. I love AVS's & Holley's. Carters seem to be a little more dirt tolerant,Holly's aa little more tunable. Do your due diligence & both are easy to work on.
               
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              • Bee1971

                Bee1971 Well-Known Member

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                They talk about it (800 AVS2) in there latest blog like it’s already available on Edelbrocks website

                But But But - I don’t see it anywhere

                Quotes

                "We followed up this year with a new 800cfm AVS2 that provides optimum performance for high-horsepower applications on both small- and big-block engine applications."

                "The Edelbrock AVS2 Series Carburetor is available in 500cfm, 650cfm, and now 800cfm for high-horsepower applications"
                 
              • Kowal

                Kowal FBBO Gold Member FBBO Gold Member

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                Do the existing metering rods work with the new carb? I am running an 1812 (Edelbrock 800 AVS Thunder) on a 440, runs very well, but this is intriguing. I am wondering if my existing tuning (rods, springs) would carry over?
                 
                Last edited: Mar 25, 2019
              • oldbee

                oldbee FBBO Gold Member FBBO Gold Member

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                Koala, they probably should work, BUT remember that even 800cfm sounds good when bench-racing; bigger is not always better on the street.
                 
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                • Joske2

                  Joske2 FBBO Gold Member FBBO Gold Member

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                  Yes, they do.
                   
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                  • fastmark

                    fastmark Member

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                    I’ve used one on an customers car. It ran perfect. I recommended one to a friend to remove the famous stumble off idle and it fixed his problem as well. Both were 650 AVS2
                     
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