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  1. Replies
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    On corner entry, the UC 2015 car actually...

    On corner entry, the UC 2015 car actually responded very well, almost to the point where I didn't like it. I think that was more of a rear end suspension geometry issue than anything else (RC too...
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    The University of Cincinnati for the last 2 years...

    The University of Cincinnati for the last 2 years has run a pitman arm steering system, but with no gear reduction of any kind. U-joints were used to get the steering wheel angle at an appropriate...
  3. Thread: FSAE Safety

    by mdavis
    Replies
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    If you're concerned about courses, at least in...

    If you're concerned about courses, at least in the US, teams can talk to local regions of the SCCA. They have course designers that are more than likely willing to help. For those not in the US, or...
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    It's good to see UC's 2013 car still being...

    It's good to see UC's 2013 car still being relevant. As the suspension guy for that car, it makes me happy.

    Having skimmed this thread, I think there are a couple of good view points in here,...
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    USF and Cincinnati also run those wheels. I know...

    USF and Cincinnati also run those wheels. I know Auckland was running the red label (heaviest and stiffest of the dwt wheels) while usf and Cincinnati run blue labels (thinner and lighter). This may...
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    Would anyone mind posting the ECU CG height...

    Would anyone mind posting the ECU CG height with/without driver? Based on looking at the engine package, it would seem to be incredibly low, and that has been repeated here, but I'm curious how low....
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    That's funny, since he told us in Canada 2013...

    That's funny, since he told us in Canada 2013 that he felt a team could win with DASD's (which Monash has clearly shown to be true).



    This. All of this.



    Steve Fox has an SAE seminar...
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    Alright, hopefully these images work reasonably...

    Alright, hopefully these images work reasonably well.

    Basically, the front takes a bit of inspiration from the BCMS 2011 car, where the lower inboard points are very near the centerline of the...
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    78,701

    I don't think the cad work was ever completed, so...

    I don't think the cad work was ever completed, so it'll have to be hand sketches. I'm not nearly as good at drawing as Z, but I'll give it a whirl this weekend.

    -Matt
  10. Replies
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    Z, The Cincinnati 2013 car had the nose around...

    Z,

    The Cincinnati 2013 car had the nose around 150mm off the ground. A few weeks ago, myself and a fellow UC alumni put together some rough conceptual drawings for a frame that had the top tubes...
  11. Christian, Are the tubes in your frame free to...

    Christian,

    Are the tubes in your frame free to move in the lateral direction (the way they splayed out during testing)? If not (hopefully not), you may want to constrain them. What we did was put...
  12. The way we did it was start with the rear...

    The way we did it was start with the rear wheels/tires in a spot, the place the diff as far behind as we were willing to. From there, but the engine against the diff (as close as possible). Then...
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    Austin, Your design looks a lot like what we...

    Austin,

    Your design looks a lot like what we ran in 2013:...
  14. Christian, NASA (USA's Space group) put...

    Christian,

    NASA (USA's Space group) put together mass/inertia data for each major component of a human being. They published this information (I do not recall where, one of my team members found...
  15. Christian, You may have shortened your rear...

    Christian,

    You may have shortened your rear frame, but it is still way too long. You need to move your MRH back towards the rear axle centerline. If I remember correctly, our better packaged cars...
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    Adam, You have hit on the 2 points that we...

    Adam,

    You have hit on the 2 points that we found running DASD in 2013. We were trying to package the pushrod/rocker, and there was no real structure where we wanted to put things. But, we rotated...
  17. It was 2013 where the car did reasonably well....

    It was 2013 where the car did reasonably well. The 2014 Cincinnati team took a lot of things for granted, and didn't understand how difficult it is to even build a car, let alone build a competitive...
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    Bemo, Were all single cylinder cars that you...

    Bemo,

    Were all single cylinder cars that you were near too loud? Or was it only a few of them? What I noticed in 2013 (I was also in the dynamic areas when cars were warming up/running), is that...
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    It seems to me like if your upper side impact...

    It seems to me like if your upper side impact tube is not within 4" of the top of your FRH, then your upper front bulkhead support tube will not be able to tie to the top of your FRH. This could...
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    That's what made it so much more fun. We had no...

    That's what made it so much more fun. We had no issues with the same IA at MIS 2013. Tech in Lincoln 2013 was really stressful for us, when it really shouldn't have been. We got called on a lot of...
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    I'm glad I'm not the only one upset about the new...

    I'm glad I'm not the only one upset about the new noise rules. I hope all of the single cylinder teams are using their time to design mufflers now, rather than getting the rest of the car done. OTS...
  22. Thread: 2015 FSAE Rules

    by mdavis
    Replies
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    62,073

    The Shell Eco-Marathon has a decent visibility...

    The Shell Eco-Marathon has a decent visibility check. It's far from perfect (as it's reasonably easy to cheat if you get creative), but basically, you put the car in a certain spot, and put colored...
  23. Thread: 2014 FS Germany

    by mdavis
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    Jay, I somewhat have to disagree with this,...

    Jay,

    I somewhat have to disagree with this, just from watching your team's video of the autocross events.

    http://i413.photobucket.com/albums/pp219/mattastick/GFR_Snip_zps8805411a.jpg

    A...
  24. Thread: 2015 FSAE Rules

    by mdavis
    Replies
    181
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    62,073

    Julian, I also agree with most of what Z says,...

    Julian,

    I also agree with most of what Z says, but one comment about your point on SES like documentation for aero mounting. The one problem I have with saying "if you're going to have wings, your...
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    We used this line many many many times to...

    We used this line many many many times to describe our 2013 car.

    -Matt
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