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Thread: Hydraulic verses solid cams SBC
          
   
   

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  1. #1
    southerner's Avatar
    southerner is offline CHR Member/Contributor Visit my Photo Gallery
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    Car Year, Make, Model: 69 Holden HT
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    Question Hydraulic verses solid cams SBC

     



    Can you run a solid cam with more duration on the street than a hydraulic cam

    for example most hydraulic cams run good on the street with 225 - 230 degrees duration and around .480 lift.

    Can you get away with a solid lifter camshaft at 250 - 260 degrees duration around .500 lift?

    I'm only asking this question because I'm curious to why you can run more duration with a solid lifter cam on the street and get better horsepower.

  2. #2
    Bob Parmenter's Avatar
    Bob Parmenter is offline CHR Member Visit my Photo Gallery
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    Here, read "Secret #1", that might help.

    http://www.harveycrane.com/cam_man.htm
    Your Uncle Bob, Senior Geezer Curmudgeon

    It's much easier to promise someone a "free" ride on the wagon than to urge them to pull it.

    Luck occurs when preparation and opportunity converge.

  3. #3
    southerner's Avatar
    southerner is offline CHR Member/Contributor Visit my Photo Gallery
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    to tech inspector

    How to ho rod small block chevs pg 69, even though they do venture to say that the duration figures are out for lunch!

    specifically the old l46 hydraulic grind and the lt1 mechanical. These grinds are different from the ones supplied at the start of the thread which were a competition cam (hydraulic) and a lunati cam (mechanical).

    Read the article on H Cranes cam secrets on acceleration ramps etc and will be heading out to the garage to degree several cams toget my head arond it.
    "aerodynamics are for people who cant build engines"

    Enzo Ferrari

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