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Author Topic: Emergency Race Squad  (Read 7172 times)
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1212FBGS
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« Reply #15 on: October 30, 2007, 09:13:39 PM »

that front end on the kawi dragster is more like Costella's... not like Deans at all....
kent
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sockjohn
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« Reply #16 on: November 08, 2007, 06:39:55 PM »

Dean,
I've been thinking about this bike.

First off, the more I think about the steering the more I like it and appreciate the design.   grin

I noticed you built the frame out of round tubing, and this is probably part of the flex problem.  As we all know, round tubing provides equal strength and stiffness in all directions, and in this application isn't what you want.  You have basically built an I beam which is stiff and strong, but only in one direction.

You're frame looks like this:
______/
and the seat/head rest doesn't look to add any stiffness.

just an idea for a frame(not to scale by any means!):
        /|
      /  |
    /    |
  /      |
/_____|

Where the height of the vertical section is greatly exaggerated due to my ASCII art.  I think if it puts your head at the same height or only slightly higher than it already is will add to the stiffness significantly (i.e. like maybe 6" at most)  This would put your head at a more natural/comfortable angle as well.

Don't most of the 32 Ford frames use 2x3 rectangular stock?  Seems like that would be overkill in your application, but since you can't make any structure that covers your body, might need it.

Just my $0.02, and hope you don't mind the unsolicited advice. Smiley


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willieworld
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« Reply #17 on: November 08, 2007, 07:24:28 PM »

dean would you sell me the front steering  thanks  willie buchta
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willie-dpombatmir-buchta
JackD
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« Reply #18 on: November 08, 2007, 08:14:55 PM »

With a suitable round torque tube down the middle and as the basis for the design, the twist would be substantially eliminated as would the frame flex.
Hook up a drive shaft and put a twist on it and see how far you get.
Now support the ends just off the ground and jump up and down on it.
Do the same test with what you have and decide.
The rest of the framework can be no more than support for the operator, and none of it adds to the frontal area.
Drive shafts from the junkyard are good steel, weldable, and cheap.  wink
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"I would rather lose going fast enough to win than win going slow enough to lose."
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Dean Los Angeles
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« Reply #19 on: November 08, 2007, 08:20:46 PM »

Jack, good idea. I'm going to run right out and get an isosceles triangle!  grin

If I had known that the flex was going to be an issue I wouldn't have gone that way. Aluminum honeycomb is on the way!

Willie! If I sold it to you what would I use?
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It's bigger than life or death! It's RACING.
1212FBGS
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« Reply #20 on: November 09, 2007, 01:15:13 AM »

honeycomb..?..!... uh,oh.. i think i know what your up to... quick everybody hide you brown paper bags Deans gonna play with some smelly chemicals... Dean if your gonna go that route, man call me...ive done a lot of structural composites
kent
(760) 598-3366
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willieworld
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« Reply #21 on: November 29, 2007, 11:53:35 PM »

good to hear that you arnt going to scrap the car dean loved all the small details --saw it in the back of your truck and was hypnotized by the detail  --hope to see it again  willie  buchta
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willie-dpombatmir-buchta
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