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Hot Rods Getting the lines right....

Discussion in 'The Hokey Ass Message Board' started by hfh, Apr 27, 2018.

  1. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    My core has 875 cubic inches. 14" wide, 25" tall and I think, 2.5" thick. I cannot measure the thickness without taking things apart. I really don't have room to move the fan back, as it is only slightly ahead of the distributor. Your flathead is doing pretty well with hood sides and top and no louvers. Mine was fairly happy last summer with no hood but this summer with the hood tops in place the fan needs to run more. The temp gets to about 195 climbing hills or stopped in traffic but I really need to drive it more to see just how it will be. My fan starts automatically at 185. Thanks so much for your comments. HFH.
     
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  2. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Thank you Stogy.
     
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  3. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    IMG_2758.JPG After driving my car on some hot days it's clear to me that if I want to run a hood in the summertime I need to have some louvers. So I'm back to using string to get a layout that suits me. I ran strings along the bottoms of the hood sides to extend the taper to where the strings meet out in front of my car. I added a string down the center of the hood. I made the center line of the rows of louvers meet at that point too.
     
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  4. I really enjoy your design methods!
     
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  5. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    IMG_2755.JPG My old hood has rows of louvers that get closer together as they go forward. The louvers though, were cut parallel to the back edge of the hood. I like this look so I will ask my louver friend Roy, to do the louvers this way again. I really like the shapes of these 3" louvers.
     
  6. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    IMG_2831.JPG New louvers
     
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  7. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Pictures from last October BEDAFA11-DA7A-44D7-89B3-8067BFC4917A.jpeg 711971EB-3060-4042-A1AA-3B6CDBB24D4E.jpeg
     
  8. GREAT LOOKING HOT ROD!!
     
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  9. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Just for fun I am playing with other ways to finish off the space below the grille and between the frame rails. Sorry they’re not better pictures. EB982CA6-DAD5-4705-816C-E07C460B7E9E.jpeg 18CC8BF2-B7B1-4F08-9785-C957EE52D3D0.jpeg
     
  10. Tim
    Joined: Mar 2, 2001
    Posts: 17,089

    Tim
    Member
    from KCMO

    I think I like the first cardboard mock up best
     
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  11. The37Kid
    Joined: Apr 30, 2004
    Posts: 30,627

    The37Kid
    Member

    I've always liked the looks of your Roadster with the Riley grille. Cardboard is cheap, see if you like the rolled front that follows the top rail like a Bugatti G.P. car. Bob

    Bugatti-Type-35-10.jpg
     
    Last edited: Apr 23, 2020
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  12. Never2old
    Joined: Oct 14, 2010
    Posts: 737

    Never2old
    Member
    from so cal

    Though louvers look cool they are not very effective at cooling.


    Sent from my iPhone using H.A.M.B.
     
  13. Cardboard #1 would get my vote. That and $5 will barely get you a cup of coffee these days though.

    Love the car - you definitely got the lines right.
     
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  14. low down A
    Joined: Feb 6, 2009
    Posts: 500

    low down A
    Member

    coffee, you got coffee, where did you get it . tell me! tell me!
     
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  15. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    1E2034F2-F21A-48A3-9451-937A6BE25EA5.jpeg AA20F09A-352D-4EDE-BB05-61890ECBF2AB.jpeg upload_2020-4-23_11-17-57.jpeg
    I believe this option will force more air thru the radiator. P.S. need more louvers 1E2034F2-F21A-48A3-9451-937A6BE25EA5.jpeg AA20F09A-352D-4EDE-BB05-61890ECBF2AB.jpeg
     
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  16. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Thank you 1shot. I think you are right that I need to get more air through the radiator and although I like the way the hood looks with what I have now, they just don’t flow enough air on a hot day. I should probably go back to my louver friend Roy to see if he can extend those rows to the front of the hood. It will be fun to see if that makes some difference.
     
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  17. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    See my P.M. I sent you about louvers. Frank
     
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  18. J'st Wandering
    Joined: Jan 28, 2004
    Posts: 1,772

    J'st Wandering
    Member

    I know nothing about louvers but I am curious how much air is passing through louvers in a hood. Where does the air flow as it passes the front of the car, across the hood, and then hits the windshield? Does the amount of air flow vary dependent on where the louvers are placed? My thoughts are that the area in front of the windshield is a high pressure area. Just some aimlessly, idle thoughts.
     
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  19. The37Kid
    Joined: Apr 30, 2004
    Posts: 30,627

    The37Kid
    Member


    I've always wondered if there was a difference in air flow between what we call normal louvers and the same louvers "reversed". The Bugatti hoods had both. Bob Bugatti-Type-35-10.jpg
     
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  20. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    Notice the louvers in the front apron they are facing foreword to acts like scoops to catch the air into the radiator same theory is used on the hood sides.
     
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  21. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Another idea, keeping everything around the grille very simple, with air around the bottom of the grille. Two ideas about how to blend the frame rails with the grille.
     

    Attached Files:

  22. The37Kid
    Joined: Apr 30, 2004
    Posts: 30,627

    The37Kid
    Member

    [​IMG]

    Like that, makes the grille look narrower. Bob
     
  23. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    I really enjoy developing ideas with cardboard. I am always tempted to add curves but in the end, keeping things around the grille very simple so that the grille remains the ‘star of the show’ seemed like the best solution. I need to have the number plate to get it inspected so that needs to be in place for now.
     

    Attached Files:

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  24. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    Use black poster board as a template to get a better idea of how it will look all one color, so it doesn’t stand out like a sore thumb. Did you do anything with your louvers per our PM. Frank
     
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  25. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    My friend said that I would need to make a new hood in order to do louvers your way. Is this so? I was hoping he could just alter the hood I have now. But I would like to somehow do what you are talking about. Thank you for your suggestion.
     
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  26. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    I did not have to make a new hood, tell him to take some scraps and practice on it. His louvers spacing may be so close that he cant do it without making a new hood. Frank
     
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  27. Stan Back
    Joined: Mar 9, 2007
    Posts: 2,178

    Stan Back
    Member
    from California

    1966 Roadster and 442 (2) copy.jpg

    I ran this roadster for years without a hood. And I hated electric fans. Because of the injector pump I couldn't run a regular fan. I did have a small (10-inch or so) electric fan and it had a very small 3/4 shroud on around it. I didn't have a thermostatic switch on it. I'd seen how these seem to kick on when you're on the verge of trouble. Most guys can tell when they're going to need it – like slowly pulling a big hill, stuck in city traffic, etc. I just flipped a switch anticipating the problem and that worked most of the time. An I didn't have to hear it when the switch was off.
     
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  28. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Hi Frank, my louvers are 1 1/4 “ apart. If I have to make a new hood, since I am trying to learn something about working sheet metal, it will be good. A good winter project. Thanks again, Howard.
     
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  29. That is such a cool roadster!
     
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  30. hfh
    Joined: Oct 22, 2012
    Posts: 476

    hfh
    Member
    from Western MA

    Two more pictures. EAE0F15A-0203-4AF6-9A34-9E7B1BE57B90.jpeg F5D77B5B-C960-4B5D-AD14-F8D87728EF62.jpeg
     

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