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    1. Kit: , by (VIP/Sponsor) xken is offline
      Builder Last Online: Feb 2020 Show Printable Version Email this Page
      Model Scale: 1/8 Rating:  Thanks: 1
      Started: 05-02-19 Build Revisions: Never  
      Supported Scratch Built

      Tommy Ivo's Showboat 1/8 Scale-sb00-jpg Tommy Ivo's Showboat 1/8 Scale-4motorbodyoff-jpg

      I built this model as a young lad with my father's help at times and have been intrigued by it ever since and always wanted to scratch build Tommy Ivo's Showboat 1/8 Scale it. Building four engines from scratch just seemed a task that I was not ready to tackle. Recently I have been extremely busy building, designing and developing model ship kits fro M.E. and have been looking for a personal project to keep me from going KNOTS. Anyway I came across a site offering a 1/8 scale Buick Nailhead cast resin Tommy Ivo's Showboat 1/8 Scale engine and after a little discussion reached a fair deal to purchase four engines knowing that some parts would require significant modifications.

      In doing research, I discovered that the Showboat itself underwent changes as it evolved to its final configuration as seen above along with an image of it in its earlier days with no body. Could very well be test runs. I also discovered on the H.A.M.B. site photos posted by the original builder and the replica builder which will be my reference resource. The Revel kit while in its day a good model but has a few major discrepancies the greatest being the oil pan configurations. I have also seen the die-cast model as well which is also creative in some details. Working from photos only and my own research I may also have to get creative with some small details.

      The initial build challenges I for see are the alignment of the four engines and the centerline of the 14 exhaust pipes; two point down on the left bank of engines. Hopefully, Mr. Geometry and Mr. Physics will help me along the way.

      First will be the clean up, drilling and milling of the cast parts. Since I have not done any extensive work with resin Tommy Ivo's Showboat 1/8 Scale I will now have a new learning experience and this will be a mixed media build. If anyone out there has any information or detailed personal pictures please share I will need all the help I can get on information.


      Tommy Ivo's Showboat 1/8 Scale
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  1. Roger Zimmermann's Avatar Yearly Subscriber
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    Roger
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    Nice! I understand your concern about chrome plating; however, I still prefer to let my parts be chromed by a plating company; I'm not at ease with chemicals.
    QUOTE QUOTE #47

  2. xken's Avatar VIP/Sponsor
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    Kenneth
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    Roger, thanks for stopping by and I really enjoy watching your build and how you solve problems.
    As for the chroming materials there are two types of chroming materials- "hard chrome" and "copy chrome" the hard chrome is the one with the hazardous off gases and materials used by commercial platers; while the copy chrome was developed by Caswell targeting the hobbyists and DIY car restorers. I have used Caswell Plating systems for years now and there is no off gassing or smell with the Copper, Nickel and Copy Chrome. The advantage for me is saving time, I can build a small part, fitted to the build to check it then remove and plate it right away. No building a tree Tommy Ivo's Showboat 1/8 Scale
    of parts and sending them off and hoping the plater does not lose them or having to wait for their return. I live in California a state that really goes overboard on hazardous materials.
    Anyway keep up the great work you are doing!



    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #48

  3. xken's Avatar VIP/Sponsor
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    Kenneth
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    Finally finished up all the exhaust pipe flanges and chromed all the flanges and pipes and removed and polished all the block bolt heads when fitting the pipes. It is starting to now look more like the real engines. Next I will work on the engine mounts to be fitted for the 5/16" frame rails.I also received a third CD from the original builder with incredible detailed photos of the actual build. Looking through the files is like adult car guy porn. Thanks to these pictures I should attain great detailed accuracy for this build. Here are a few pictures of the pipes in place.

    Tommy Ivo's Showboat 1/8 Scale-exhaust-pipes-11-jpg

    Tommy Ivo's Showboat 1/8 Scale-exhaust-pipes-12-jpg

    Tommy Ivo's Showboat 1/8 Scale-exhaust-pipes-13-jpg

    Tommy Ivo's Showboat 1/8 Scale-exhaust-pipes-14-jpg

    Now to sort out the engine mounts.





    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #49

  4. xken's Avatar VIP/Sponsor
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    Kenneth
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    Fabricating the engine mounts was a bit of a challenge in that there are two different types and when completed the bottom of the engine block has to be parallel to the rails. So after studying the build photos I realized that the rear end of the block mount was the closest to the block so I used it as the starting/pivot point to establish the starting position. The brace arm was duplicated for second engine and adjusted parallel to the blocks on the rails. The front mounts which bolted into the original locations were then cut and adjusted to fit. Here is a sequence showing the mounts being fabricated, plated Tommy Ivo's Showboat 1/8 Scale and finally assembled in place for the left bank of engines.

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-01-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-02-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-03-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-04-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-05-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-06-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-07-jpg

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-08-jpg

    Next will be to make the right bank engine mounts.



    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #50

  5. gbritnell's Avatar VIP/Sponsor
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    George
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    Truly outstanding work Ken. Knowing your passion for detail this model should be right up there with the best.
    gbritnell
    QUOTE QUOTE #51

  6. xken's Avatar VIP/Sponsor
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    Kenneth
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    George, Thanks that means a great deal from you. I just wish I had your machining skills. But I keep learning even at 72.


    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #52

  7. xken's Avatar VIP/Sponsor
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    Kenneth
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    I finished up the right bank of engine mounts and then I made a CAD drawing of the chassis frame using the dimensions supplied on the CD sketches I received. The drawing was then used to build the various parts. First I had to anneal the 5/16" rails and form the bends slowly to minimize the kinking since I would be unable to fill them with solder. I then filled the kinks with solder and filed them round. I then cut and fitted the cross members with the center and rear having tight fish mouth joints. The front then fitted with mitered joints. The forward cross member was fitted at an angle to attach between the engine mounts. Finally, I machined the front axle connecting plates that are bolted together. The lower half was then soldered to the chassis frame at a 60 degree angle on the right side of the frame. The upper half with be soldered to the axle and will be chrome plated Tommy Ivo's Showboat 1/8 Scale . The engines were then test fitted to the frame rails only requiring a slight modification to the forward engine connectors for a perfect fit.

    Tommy Ivo's Showboat 1/8 Scale-engine-mounts-11-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-01-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-02-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-03-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-04-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-05-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-06-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-07-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-08-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-09-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-10-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-11-jpg


    Tommy Ivo's Showboat 1/8 Scale
    Last edited by xken; 10-15-19 at 01:24 AM.
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #53

  8. RAT23's Avatar Active Member
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    TOM
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    Looking great ken
    QUOTE QUOTE #54

  9. xken's Avatar VIP/Sponsor
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    Kenneth
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    I had a very productive day fabricating the cockpit main frame structure and secondary X bracing and one of the steering bearing mounting brackets. The trickiest part was soldering the small adjoining bracket from the frame to the engine bracket. I used Yellow Ochre on the engine bracket flange and bolts so when soldering they did not get soldered as well. All the joints were various angled fish mouth joints on the various sizes of tubes. These were all hand files for tight fits. This frame will eventually be painted gloss black. Still have more fitting to add to this frame work yet.

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-12-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-13-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-14-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-15-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-16-jpg

    Tommy Ivo's Showboat 1/8 Scale-chassis-frame-18-jpg


    To bend brass tubes with minimal to no collapsing or kinking depending upon size seal one end then fill the tube with water and freeze. Frozen water may extend out the open end of the tube. Then quickly before water thawing bend the tube around a fixture. The frozen water inside the tube keeps the walls from collapsing or kinking. The bent fame rail size below is 3/16" tubing.

    Tommy Ivo's Showboat 1/8 Scale-frozen-bend-01-jpg


    Tommy Ivo's Showboat 1/8 Scale
    Attached Images Attached Images Tommy Ivo's Showboat 1/8 Scale-chassis-frame-17-jpg  Tommy Ivo's Showboat 1/8 Scale-chassis-frame-19-jpg  Tommy Ivo's Showboat 1/8 Scale-chassis-frame-20-jpg  Tommy Ivo's Showboat 1/8 Scale-chassis-frame-21-jpg 
    Last edited by xken; 10-25-19 at 03:28 PM.
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #55

  10. xken's Avatar VIP/Sponsor
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    Kenneth
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    After a long break finishing up a ship model kit design and my wife finishing up her cancer treatment I am back building. I moved on to the quick change rear end which became a combination of metal and wood. These are complicated units that along with the axles will carry the weight.
    Tommy Ivo's Showboat 1/8 Scale-rear-01-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-02-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-03-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-04-jpg

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    Tommy Ivo's Showboat 1/8 Scale-rear-07-jpg

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    Tommy Ivo's Showboat 1/8 Scale-rear-09-jpg

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    Tommy Ivo's Showboat 1/8 Scale-rear-11-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-12-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-13-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-14-jpg

    This is just the first of two that will be needed and are critical parts for axle alignment. Next will come the rear axle.


    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #56

  11. JunkGTZ's Avatar VIP/Sponsor
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    Larry
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    Incredible work! So I am guessing that since this had two parallel drivelines - one for each side of the rear axle, would there have been two throttle pedals in order to control them and keep the power to the road balanced? Further, even though this car had a quick change rear end X 2 was there a working differential in there? It would seem it would be unnecessary since this car is meant for straight line runs and has the parallel driveline. Just curious.
    QUOTE QUOTE #57

  12. xken's Avatar VIP/Sponsor
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    Kenneth
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    This has the left bank of engines driving the front and the right bank driving the rear. They were geared different so that only the front tires smoked going down the strip. If geared the same it would be like driving on ice. Single pedal for throttle to both engines, I will be adding that linkage later on. I now have all the pictures from the original builder, so I have great reference for details. Watch for the upcoming Mecum auction in Kisseemee, the replica is up for sale. No transmissions. The engines we 425 HP Buick nailhead, no nitro gas only. Don Prudhomme was a driver when studio contract stipulated Tommy not to drive for length of TV contract. The land speed Challenger builder also advised on some of the drive drain build parts. For example the front axle components from 1 ton military surplus truck. A great part of scratch building is how much you learn doing research on a subject.


    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #58

  13. xken's Avatar VIP/Sponsor
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    Kenneth
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    Not sure if this link works, but here is the lot number if you goggle Mecum Auctions. Perhaps someone more computer literate than me can post a direct link, some great professional photos.

    https://www.mecum.com/lots/FL0120-39...shot-dragster/

    Got on my computer and saved the link. There is a great closeup picture of the crossover linkage for the throttle.


    Tommy Ivo's Showboat 1/8 Scale
    Last edited by xken; 01-09-20 at 02:34 PM.
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #59

  14. xken's Avatar VIP/Sponsor
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    Kenneth
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    Here is the rear axle build, one of the things I plan on doing since there is so much chrome I will use aluminum whenever feasible. Also note that the quick change rear ends will have custom mounting plates versus the originals to conserve space.

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-01-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-02-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-03-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-04-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-05-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-06-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-07-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-08-jpg

    Tommy Ivo's Showboat 1/8 Scale-rear-axle-09-jpg

    Next I will move forward to the front axle which will be a little more complicated with the movable wheels and steering linkage plus another quick change unit.


    Tommy Ivo's Showboat 1/8 Scale
    "In wine there is wisdom. In beer there is strength. In water there is bacteria."
    Ken

    QUOTE QUOTE #60

  15. MODEL A MODEL's Avatar Yearly Subscriber
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    don
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    Thanks for the step by step!

    Like Roger and others here the lessons just keep on coming!

    Much appreciated by myself and the other members of the silent modelers society. -The S.M.S.
    QUOTE QUOTE #61

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