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Thread: ISRA World Championships USA 2010

  1. #1
    Join Date
    Aug 2003
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    illinois
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    ISRA World Championships USA 2010

    International Slot Racing Association (ISRA) World Championships USA 2010
    will be held on Oct 2-9 2010 at Mid-America Raceway

    This link http://israworlds.com/
    will take you to the rules pages, registration page, etc. etc.

    Sign ups have begun, and will end at midnight august 31st, 2010
    early sign up is recommended to guarantee your place.


    Rule changes of note from the delegates meeting in Finland are as follows

    For the Production race there is only 2 legal chassis
    1 champion turbo flex
    2 parma flexi 2

    Body for the production race will be Parma's COT nascar body #1035

    Body for the 1/32 eurosport GT class will be the Redfox Audi R10
    Roger Schmitt
    USRA Pres




    MidAmerica Slot Car Raceway LLC
    109 1/2 West Monroe st.
    Bloomington, IL 61701

    630-484-8574

    Mid America Raceway Naperville
    1223 E Ogden ave
    Suite 139
    Naperville, Il 60563

  2. #2
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    illinois
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    more updates

    Hand out Tires for this race will be

    BIG FULL HUB PIRANHA RACE TIRES #5218 - 3/32" x .760"

    X-12 Handout Motors will be provided by Proslot and use .540 arms at 38 degrees with the VIP can.



    roger
    Last edited by Roger Schmitt; 12-14-2009 at 10:45 PM.
    Roger Schmitt
    USRA Pres




    MidAmerica Slot Car Raceway LLC
    109 1/2 West Monroe st.
    Bloomington, IL 61701

    630-484-8574

    Mid America Raceway Naperville
    1223 E Ogden ave
    Suite 139
    Naperville, Il 60563

  3. #3
    Join Date
    Sep 2005
    Location
    Windy
    Posts
    1,716
    Yes but what track will you run the production race on????

    ‎‎"Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do." - Steve Jobs 1955-2011

  4. #4
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    Aug 2008
    Location
    Chicago
    Posts
    22
    Flat track from what Ive been told

  5. #5
    Join Date
    Sep 2005
    Posts
    1,162
    I'm putting together a prod car to practice with. Got the VIP set up, had a P/S .540" dia motor. Surprised myself to find the arm fits right in the stock set up....took the calipers and it is a nominal .550" hole in the stock set up. I was thinking Pro Slot was going to be honing out close to 100 motor set ups, but looks like it isn't needed. Only problem are those little stamped steel tabs on the cross piece on the motor can, they can touch the armature. Steps can be taken to avoid this. Anyway, I have all the parts to build a car and looks like we might have some practice races at my local track, Slot Car Raceway, Rohnert Park, CA, site of the 2006 & 2008 USRA Scale Nats.

  6. #6
    Join Date
    Jun 2002
    Location
    Pine, AZ
    Posts
    649
    Well I put together a production car for Jonathan, to test at the Boola Bash. It wasn't bad. I guess I should read the rules on the chassis, since I had the axle height wrong. Will fix that problem and get some of the approved tires to test with again. Car handled great with untreated JK tires.

    Steve
    Last edited by Forsyth Racing; 12-14-2009 at 09:39 PM.
    ParmaPSE
    3rd Eye Technology

  7. #7
    Join Date
    Aug 2003
    Location
    illinois
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    Quote Originally Posted by M G Brown
    Yes but what track will you run the production race on????


    All the Races are on the flat track.

    rog
    Roger Schmitt
    USRA Pres




    MidAmerica Slot Car Raceway LLC
    109 1/2 West Monroe st.
    Bloomington, IL 61701

    630-484-8574

    Mid America Raceway Naperville
    1223 E Ogden ave
    Suite 139
    Naperville, Il 60563

  8. #8
    Join Date
    Sep 2005
    Location
    Windy
    Posts
    1,716
    You're no fun anymore.
    ‎‎"Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do." - Steve Jobs 1955-2011

  9. #9
    Join Date
    Apr 2006
    Posts
    701
    Quote Originally Posted by M G Brown
    You're no fun anymore.
    I've over heard Laura complaining about that too!

  10. #10
    Join Date
    Mar 2005
    Posts
    527
    Are you allowed to grind production tires or does axle need to be jigged for
    .760 dia tires?
    Why do I do this to myself?

  11. #11
    Join Date
    May 2002
    Location
    City of Chicago
    Posts
    632
    Quote Originally Posted by Wallbasher
    Are you allowed to grind production tires or does axle need to be jigged for .760 dia tires?
    The rule is 8.6 mm from bottom of chassis to top of axle. I can't find anything stating the minimum axle diameter. But if it is 3/32 axle (2.38 mm dia.), I believe this works out to the smallest gear you can jig your car with is a 40t 72 pitch. (straight 40t is 14.85 mm dia.)

  12. #12
    Join Date
    Jul 2002
    Location
    Silicon Valley, California - USA
    Posts
    672

    Not all 40t are alike...

    Quote Originally Posted by LoudCat
    The rule is 8.6 mm from bottom of chassis to top of axle. I can't find anything stating the minimum axle diameter. But if it is 3/32 axle (2.38 mm dia.), I believe this works out to the smallest gear you can jig your car with is a 40t 72 pitch. (straight 40t is 14.85 mm dia.)
    Just to let you know that Slick7 40t 72pitch spur gears are 14.64mm are diam. which could make a difference when setting up your cars.
    Last edited by Owl Chump; 12-16-2009 at 10:16 PM.
    Owl Chump


  13. #13
    Join Date
    Dec 2005
    Location
    England
    Posts
    173
    There isnt, as far as I know a min axle dia, but the hand out tyres are 3/32!

    You can grind the tyres, min race start height is 0.8mm, and you can only work on the car in race time. Pretty sure that 0.8 wont get you through the race, so you need to start taller, or change the tyres when the power is on.

    In 2009, we started with .9, and ran out in the 5th segment. We still did ok! ;-)

  14. #14
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    Jun 2002
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    @Walk and Don't Walk
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    385

    Question

    Wheels and axles
    Max rear tire width20.7
    Min rear axle diameter 2.36
    Min distance from top of rear axle to bottom of chassis8.6
    Min front wheel diameter12.7
    Min front wheel width0.8Min front axle diameter1.0
    Min front wheel track72.0

    From the rule book

  15. #15
    Join Date
    May 2002
    Location
    City of Chicago
    Posts
    632
    Quote Originally Posted by BSlotcar.com
    ... min race start height is 0.8mm...
    I'm not sure what you mean here. Are you talking about the rear end track clearance? I thought there was no minimum for that.

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