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Thread: Tyres coning

  1. #16
    Join Date
    Jun 2002
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    Wellington, New Zealand
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    4,511
    Why use 2 "P's" when one will suffice?

  2. #17
    Join Date
    Oct 2014
    Location
    new plymouth
    Posts
    14
    you can have yer tires any color you like

  3. #18
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    Sep 2014
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    Auckland, New Zealand
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    293
    Quote Originally Posted by Zippity View Post
    Why use 2 "P's" when one will suffice?
    Easy Zipity, if he's gonna be nice now let him add to the knowledge sharing, i thought it was quite an informative response
    listen, study, spy, try, research, invent

  4. #19
    Join Date
    Jun 2002
    Location
    New Zealand
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    351
    Zip you missed the two ii's, your slipping buddy

  5. #20
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    Jun 2002
    Location
    Wellington, New Zealand
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    4,511
    Quote Originally Posted by Gill A View Post
    Zip you missed the two ii's, your slipping buddy
    Are you trying to be funny lucky?

    And it is "you are" or "you're".

    Slipping has 2 "i's" and 2 "p's", so you are no better than me

    Oh, by the way, how do you spell "tapering"?

  6. #21
    Join Date
    Oct 2014
    Location
    new plymouth
    Posts
    14
    Purely the result of red wine ( good stuff not from a cardboard box) whilst out on the town celebrating ones 70th with siblings,
    the other gent has fallen from the magic roundabout-bumped his head-----time for pondering

  7. #22
    Join Date
    Jun 2002
    Location
    NorthWesterner now in Philippines
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    9,648
    Quote Originally Posted by Zippity View Post
    Are you trying to be funny lucky?

    And it is "you are" or "you're".

    Slipping has 2 "i's" and 2 "p's", so you are no better than me

    Oh, by the way, how do you spell "tapering"?
    Zip - that was Gill who posted that one... not lucky...

    And besides the 2 "p's" and 2 "i's", there was also the 2 "c's" and a few other things... that you BOTH missed.

    So... as far as being the grammar police... you are BOTH slipping. (or is it "you're"?) LOL

    There, their, they're... don't feel bad. Sometimes I get too, to, two hung up on stuff like that myself.

    But as for this thread continuing to stray off-topic... I suppose I am now guilty as well.

    But as least the name calling and insults seemed to have chilled out.

    I actually had to scroll up just to remember what the original topic was.

    OK... Coning.... now I remember.

    But now all the sudden I'm craving ice cream.
    Red wine gives me heartburn... (or is it "read whine"?)

    PK @ OWH

    Reference link for the OCD's amongst us:
    http://theoatmeal.com/comics/misspelling
    and fore those whom have weigh to much tyme on there hands...
    http://theoatmeal.com/tag/grammar
    Last edited by oldweirdherald; 01-11-2015 at 09:08 AM.
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    Paul Kassens
    OWH Slot Car Talk "Mom"
    The Old Weird Herald
    email: paulk@oldweirdherald.com

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  8. #23
    Join Date
    Mar 2009
    Location
    Everett, Wa.
    Posts
    520

    Here's some Empirical data

    In 1968/69 I ran tapered tires on a "Thingy" style open wheel car. I was using 1" wide X 7/8 Dia. Blue tires on a 3" width rule. It was a light car, 1/32 piano wire front axles in 1/16 tubing, independently sprung and an inline Dynaco "Flex" frame piece (sprung pillow blocks) w/26D (it was a car build featured in Slot Car Racing mag I copied, except the sprung pillow blocks I added). When I ran it was very apparent that the light blue tires were collecting "dark track residue" only on the outside with a tapering contact area to no contact in the inner 1/4.
    So I cleaned them, put in a tiny taper and next time I went to the track;

    1) They then had an even width band of contact track residue printing across the tire.
    2) Tire wear progressed evenly.
    3) Tipping in the corner went away.
    4) It was much faster on the track as baselined against my Testors Marauder and Cox SuperCuc
    5) The car was easier to drive, very smooth and predictable until...
    6) The car was stolen along with 4 others at Paladium Raceway in Seattle.
    7) I almost cried.

    Putting a taper in the tire is akin to negative camber on a track 1:1 car. This redistributes the pressure distribution more evenly across the contact line of the tire when cornering.

    So will it work, YES. Will it work today? Only testing will prove!

    Todays car have a much lower CG
    Power/weight is greater (in general)
    Tires sidewall stiffness is different (shorter, different spring rate)
    Tire compound is different
    Track surface (roughness) is different
    Track surface composition is different (epoxy surfaces)

    Your original thinking and question was sound. I suggest you try the tires, you've made them, and determine for your self. If its an improvement or not, you'll get an answer.
    Guy Middleton
    Everything I was taught in Engineering school I had already learned from slot cars....

  9. #24
    Join Date
    Jun 2002
    Location
    Wellington, New Zealand
    Posts
    4,511
    Paul,

    I know that I referred to Gill.

    I was trying to expose him for posting as lucky

    2 "c's"? where?

  10. #25
    Join Date
    Sep 2014
    Location
    Auckland, New Zealand
    Posts
    293
    Quote Originally Posted by MentalKase View Post
    ...Your original thinking and question was sound. I suggest you try the tires, you've made them, and determine for your self. If its an improvement or not, you'll get an answer.
    Well I tried these over the weekend when I also tested a new motor not run before
    1000laps
    they went really well and had almost not run-in period...fast (like the motor) straight away, normally they seem to need 100laps or so to bed in
    Not much of a taper, maybe 3degrees (about all I could tweak from the Hudy) but also very little wear...still had heaps after all those laps...
    Whats the Patent office's phone no?
    listen, study, spy, try, research, invent

  11. #26
    Join Date
    Jun 2014
    Location
    Wichita, KS
    Posts
    33
    I'm really glad the old tip worked with new rubber. We seldom cut over a 1 deg. angle back in the day, as the effect on the outer O.D. was excessive with more angle.

    Still good to hear positive results in actual testing on modern rubber - I guess some things don't change over time!

  12. #27
    Join Date
    Mar 2009
    Location
    Everett, Wa.
    Posts
    520
    Swodem

    Great to hear! Aren't you glad you tried it!
    Guy Middleton
    Everything I was taught in Engineering school I had already learned from slot cars....

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