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Type: Posts; User: Charles Kaneb

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    The chicken and the egg...

    I set off some controversy with the remark about the regulars here being design judges.

    There were two ways this could've gone:

    1) The way it did, which was to assume that the chicken came...
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    If you serve at Michigan, now that Z has judged...

    If you serve at Michigan, now that Z has judged at Australasia, are there any regular posters left who aren't DJs?
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    https://www.youtube.com/watch?v=LdN27HzoyO4 Like...

    https://www.youtube.com/watch?v=LdN27HzoyO4
    Like the song in that link, this discussion's missing something.

    1) How does a chain go from its new length to its service limit? If it's by yielding,...
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    No. .

    No.
    .
  5. I wanted to drive something that was considerably...

    I wanted to drive something that was considerably faster than I otherwise could.

    Convince sponsors to pay for a $5,000 shifter kart for an 18-year-old with no racing experience? Impossible (and...
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    Freddie, Thank you for the simulation. Looking...

    Freddie,

    Thank you for the simulation. Looking at the output graphs I notice two things:

    1) I do not think I'd bring a 15/59 gearset to a competition featuring courses like that. I'd aim to hit...
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    Z, Quick stats on the kart, in English units...

    Z,

    Quick stats on the kart, in English units because that's what my tape measure uses.

    1) With driver, 150# front, 222# rear, 60% rear. Without driver 182#.
    2) Front overall width 45 1/4",...
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    The Briggs kart

    A little preview of what you can do with eight horsepower.... https://www.youtube.com/watch?v=KFku5vz9EXY

    It won't go to Lincoln this year for logistical reasons.
  9. Your safety/competition rules may vary, but in...

    Your safety/competition rules may vary, but in karting and motorcycling I have found that the best location for a video camera is on top of the helmet. Your neck is a very nice spring and damper. If...
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    Claude, I think I made myself hard to...

    Claude,

    I think I made myself hard to understand there. I said that it would be a lot easier to make shims that gave a good, known adjustment than to make those that gave a bad, random adjustment!...
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    I'm not entirely sure how to make shims that give...

    I'm not entirely sure how to make shims that give random adjustment - normally they're cut from sheet metal, which is rolled to a tightly controlled thickness. If it's undergauge you get your money...
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    If I'm ever selected as a design judge, I can...

    If I'm ever selected as a design judge, I can bring my Briggs kart, to sweep the courses before the FSAE cars go out, and lay down benchmark times. Its chassis is older than some of the students...
  13. Performance Electronics is a sponsor - check the documentation available first!

    1) "Select a higher gear" works only by reducing the force available at the rear tires. You will only be faster that way if there is no effective throttle modulation, and you have the choice between...
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    A speculation: I think a 150kg maximum weight...

    A speculation: I think a 150kg maximum weight would result in a higher finishing rate than a 200kg minimum would.
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    I am wholeheartedly opposed to the nerfing of the...

    I am wholeheartedly opposed to the nerfing of the mechanical design aspect of FSAE. Even if you eliminated the things-breaking-and-falling-off problems, you'd still have oiling, cooling, fueling,...
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    Strike a line from the furthest forward part of...

    Strike a line from the furthest forward part of the wing to the trailing edge. That defines your chordline. From there, you can measure vertical and horizontal distances from the leading edge.
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    It takes eight. You're allowed to have fewer, but...

    It takes eight. You're allowed to have fewer, but doing a decent job of designing and building a car in a year takes 8 people who are committed to the job.
  18. Yes, if it's an oil or insulation-and-paint fire...

    Yes, if it's an oil or insulation-and-paint fire like this one.

    A gasoline fire has a much more rapid release of thermal energy than an oil fire. Gasoline has a much higher vapor pressure and much...
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    Fast forward to the 2:00 mark of this video....

    Fast forward to the 2:00 mark of this video. https://www.youtube.com/watch?v=OLCjv1mmggc&t=237s.

    Watch the shifting. How much time will you gain per shift against a properly operating mechanical...
  20. Lucky

    They're lucky that was a slow-burning oil or coolant fire.

    With that response a gasoline fire would've had enough time to set the whole tank off.

    It'll take a little while to justify bladder...
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    Any updates on this? If you'd like me to come...

    Any updates on this? If you'd like me to come down and check this out I can.
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    Absolutely necessary and fairly straightforward....

    Absolutely necessary and fairly straightforward. You'll need to put the driver in a seated position resting across two scales to get the x location, then rotate the whole assembly around y while the...
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    BillCobb, if you're ever feeling underappreciated...

    BillCobb, if you're ever feeling underappreciated for your work on this thread, I've talked to two FSAE teams in the last week and they are both using some of your ideas on testing.
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    tdzanic, Unless you mount it so that the force...

    tdzanic,

    Unless you mount it so that the force passes through the shear-center of the L-beam, they'll twist whenever you step on the brake.
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    Keep in mind the forces involved

    Whiskeybusiness,

    I live 10 miles from Wayne State.

    I'm willing to be the "go/no-go" tester for how much clamping force is needed on the pedal box. Please draw it up around a 500# force on the...
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