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  1. Replies
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    1,001

    It is this wide because you need to match your...

    It is this wide because you need to match your axial rear sprocket position to your engine sprocket. Manufacture the flange to the shape & size you need.
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    2,953

    If your ready to drive sound is significantly...

    If your ready to drive sound is significantly louder than a normal conversation in a distance of 2 metres around the car you will most likely pass this test.
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    Heyho, I have never done such a simulation...

    Heyho,

    I have never done such a simulation myself, but I think the correct way of doing one is to use inertia relief. To quote this PDF:
    "Typical applications of inertia relief include modeling...
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    Heyho, if you build it like you described it...

    Heyho,

    if you build it like you described it then you really have to take both reductions into account. But please explain to me WHY do you want to build it this way?!?!?

    The QDF7ZR is a sealed...
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    Heyho, look at the picture on the...

    Heyho,

    look at the picture on the howstuffworks-Website you linked. The differential case is driven by the input pinion which acts on the ring gear, and the ring gear is rigidly connected to the...
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    Heyho, usually a differential does not provide...

    Heyho,

    usually a differential does not provide additional reduction. Therefore your total reduction ratio in first gear should be

    (2.11)x(2.666)x(4)
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    Heyho, do you measure oil pressure up- or...

    Heyho,

    do you measure oil pressure up- or downstream of the oil filter and oil cooler?

    I just wanted to compare our readings to your graphs and our oil pressure sensor is mounted downstream of...
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    2,853

    The lower side impact tube may not be bent or...

    The lower side impact tube may not be bent or must be braced with additional tubing. See T 3.5.5.
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    There has been a speech at one of the FSG...

    There has been a speech at one of the FSG conferences some years ago about a belt transmission which used selfmade pulleys because everything that was commercially available was just too large. The...
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    These are questions you should pose to the event...

    These are questions you should pose to the event organizers (which event are you planning to compete in?) and the rules guys of that event. They are the ones that will check your car for compliance...
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    Is it possible that you accidentially mixed...

    Is it possible that you accidentially mixed things up?

    If a screw/bolt/nut loosens, you need a finer thread. This is because with a fine thread an axial force produces less torque that tries to...
  12. Thread: rules

    by Tilman
    Replies
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    685

    Be aware that there may be small rule changes &...

    Be aware that there may be small rule changes & additions in effect on every competition. For example, Formula Student Germany has stricter rules on the location & protection of the engine...
  13. Heyho, great post! Please add a section with...

    Heyho,

    great post! Please add a section with abbreviations used, this will make it much easier to read for any non-native speaker.

    Some things the manual of our ECU suggests:
    1) Measure...
  14. Heyho, the simplest solution is often the best...

    Heyho,

    the simplest solution is often the best ...

    Thanks for the advice!
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    Heyho, since the DMSB, the German motorsport...

    Heyho,

    since the DMSB, the German motorsport "agency", has extended the rules for some ralleys, there have to be at least two belt cutters in each car easily accessible by the passengers. These...
  16. You need all the timing information to do that,...

    You need all the timing information to do that, don't you?
    I remember that our engine guys had some trouble getting a timing light working on ignition coils which incorporate a coil driver and a...
  17. Heyho, 2004 Yamaha R6 RJ09, may be the same as...

    Heyho,

    2004 Yamaha R6 RJ09, may be the same as the 2003 RJ05:

    Crank sensor: Variable reluctance 2-wire, 4 - 0 teeth on crank trigger wheel. Usually needs to be replaced by a wheel with at least...
  18. Thread: MAP sensor

    by Tilman
    Replies
    5
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    1,291

    SAMII, if you have a sensor measuring your...

    SAMII,

    if you have a sensor measuring your current throttle angle (alpha) you are usually running an alpha-n-mode (n = engine rpm). In this mode, the ECU determines the fuel needed by the current...
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    Thanks for your answers. I am not building an...

    Thanks for your answers.

    I am not building an E-car, I was just interested.
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    OK Mr. Precise, it's in the 2013 FSAE rules,...

    OK Mr. Precise,

    it's in the 2013 FSAE rules, EV 4.1.5 and EV 4.1.7. They define minimum distances between the two systems. Again: An optocoupler is not large enough to keep these distances. Even...
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    Heyho, i really appreciate the release of...

    Heyho,

    i really appreciate the release of those documents/schematics/parts http://fsae.com/groupee_common/emoticons/icon_smile.gif

    I am not involved in building an E-car but I think that these...
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    Heyho, if there is not even a neutral sensor...

    Heyho,

    if there is not even a neutral sensor then things will get complicated.

    For our next car our engine guys will fit some "nipples" to the shifting drum that have different resistances to...
  23. What are you talking about? I did not attend FSG...

    What are you talking about? I did not attend FSG 2011 so I do not know what happened there ... </div></BLOCKQUOTE> </div></BLOCKQUOTE>

    OK sorry for the misunderstanding.
  24. What are you talking about? I did not attend FSG...

    What are you talking about? I did not attend FSG 2011 so I do not know what happened there ...
  25. Hmm, obviously...

    Hmm, obviously http://fsae.com/groupee_common/emoticons/icon_smile.gif Forgot the word rim ...
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