Whats the latest on the Victor mw head combos out there?

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  1. Bluefish

    Bluefish Active Member

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    just foot brake, interesting it liked the smaller ports. I might pull the indy intake and try a trick flow.
     
  2. Lefty71

    Lefty71 FBBO Gold Member FBBO Gold Member

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    Ahh, I didnt realize this. Sounds like you are doing pretty well already, but I'd look at what if anything you can sacrifice to lighten the car and improve transfer (without ruining a street car appeal). And still go to the square manifold with the dominator adapter. HTH, Lefty71
     
  3. 451Mopar

    451Mopar Well-Known Member

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    I am curious how a larger carb would be on my car, but I like the drivability of the FiTech 1200. I think it is only around 800 cfm?
    That and I haven't been to the track in two years, so it's not a big deal.
     
  4. Stroker68

    Stroker68 Active Member

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    Mech fan and water pump can eat up around 30 hp due to parasitic drag. The 511 might not accelerate as fast as the 408 because of the rotating mass. A smaller cam might increase midrange torque and make make up for lazy. Just my opinion.
     
  5. 451Mopar

    451Mopar Well-Known Member

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    I'll have to look at the in car video again when I'm not at work, but car seemed to move really good in 1st and 2nd, but 3rd I think it sounded a bit different. Might double check the O2 readings there too and see if it is going lean?. That is why I mentioned the high speed retard, but might also check if the fuel pump is keeping up with the demands?
     
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    • Stroker68

      Stroker68 Active Member

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      Duration of cam? With flow numbers like that correct cam is everything. More gear would up torque in the twist. Might be a little lean on top pulling all that air.
       
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      • Bluefish

        Bluefish Active Member

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        No retard in the box. The weekend before car ran rich till the cooler weather rolled in that night. Best time was run with a 13.0 afr
         
      • Bluefish

        Bluefish Active Member

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        270@50, I think a new 9" vert is in my future. Something about 5500 flash.
         
      • Stroker68

        Stroker68 Active Member

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        270 is your lift at .050 I'm guessing which is about right for a svt. Duration is what's makes power. Especially with over 500 ci. Good cam for your combo would be around 300 adv give or take with a mid 260 @ .050 lift. Those heads wants the valves to be open longer. I could be wrong. My wife says I am all the time.
         
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        • Bluefish

          Bluefish Active Member

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          Again, the vert is tight and feels tight when I foot brake it. Hard to get much over 2700rpm. What works best behind a big block, a 8" or a 9" and why?
           
        • dvw

          dvw Well-Known Member

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          Not that wallace calculators are perfect but they are generally pretty close. Based on 130mph
          60 Foot 1.42
          330 Foot 4.09
          660 Foot 6.43
          660 MPH 105.69
          1000 Foot 8.46
          1/4 Mile ET 10.19
          1/4 Mile MPH 130
          10.0 will require more power or less weight. I'd contact Malex and copy his Victor build.
          Doug
           
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          • Stroker68

            Stroker68 Active Member

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            Do you run straight mechanical timing with your dist locked out and a timing comp? Where does your timing come in? A 8 inch converter usually stalls around 5000 rpm. Helps to know where and when i the rpm range your car makes peak hp and torque to dial in your launch. Smaller converter allows the engine to rev into optimal rpm for launch. A two step and brake would be good. Your heads flow for 9s. Your cam and comp determines how the heads make power at a given rpm.
             
          • Bluefish

            Bluefish Active Member

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            Thanks DVW. Good to know it has the capability. I talked to someone today that said the Roadrunner has been a track champion along time(like 30 or 40yrs) and is well figured out. That same engine in my car would not run a 9.70. I will keep the recipe just for reference thou. It seems I need to check my valve springs just to be sure their keeping everything in check. Lenny said $125 to reset my 8" vert, so I need to find out whats best for my app. a 8" or a 9" vert.
             
          • Bluefish

            Bluefish Active Member

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            I have a very short curve. Intitial is 30* total is 36* all in by 2500rpm. Dwayne Porter tells me the max torque should be about 52-5300 and peak hp should be about 65-6600. He dynos a lot of engines.
             
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            • Bluefish

              Bluefish Active Member

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              the advertised duration is 302/308 270/276@50.
               
            • Stroker68

              Stroker68 Active Member

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              8 inch converter. Will be plenty Louise IMO. Launch at around 3500. Still think cam and timing are holding you back with those heads. Lots of speed left.
               
            • Stroker68

              Stroker68 Active Member

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              Yep. I like it. A little less lift @.050 would improve midrange torque in my experience but your real close. Small changes in lift can make 50 lbs of torque at midrange rpm.
               
            • Stroker68

              Stroker68 Active Member

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              Also. Mopars like a single pattern cam on a 108.
               
            • Bluefish

              Bluefish Active Member

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              Over on another site a member listed the recipe to the engine these victors came off of. A 511 with a small roller with .620 lift and bracket duration he says. 13:1 with a super vic intake and 1050. Ran 9.70 in a well sorted 69 Roadrunner at 3500#.
               
            • dvw

              dvw Well-Known Member

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              I d have to see those time slips. At that weight, small cam, 511??????. Pretty lofty goal. I know a few that dynoed close to 900 that run not much quicker. It would take close to 775hp uncorrected to get there. Probably looking at 825 off the dyno minimum.
              Doug
               
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