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Type: Posts; User: Matt Gignac

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    Assuming you're set on a wheel size and engine...

    Assuming you're set on a wheel size and engine size...

    Take a look at the weights of all your sub-systems, and try to identify where you can save some weight. Do a little benchmarking to see...
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    You need to take into account that your pads will...

    You need to take into account that your pads will be a couple thou off the discs, which means some displacement of the pistons.

    Matt Gignac
    McGill Racing Team
  3. I'd guess it would be to obtain a very low front...

    I'd guess it would be to obtain a very low front view virtual swing arm length. This would mean very little camber change in roll, to the detriment of camber change in bump.

    Given the nature of...
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    Either an undersized reamer, or a boring head. ...

    Either an undersized reamer, or a boring head. If there's a shoulder to hold your bearing in, a boring head is likely your only option. We made the holes 1/16" undersize, welded, drilled 1/32"...
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    With a 200lb spring, I believe it was something...

    With a 200lb spring, I believe it was something to the tune of 770g.

    Matt Gignac
    McGill Racing Team
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    I wouldn't spend an extra 3.20 for the drilled...

    I wouldn't spend an extra 3.20 for the drilled heads.

    It's a matter of using a hard drill bit (cobalt, titanium coated, or carbide), holding the bolt head solidly in a vise, and using a slow speed...
  7. Add me on for one Matt Gignac McGill Racing...

    Add me on for one

    Matt Gignac
    McGill Racing Team
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    We use chopped fibreglass packing, as many teams...

    We use chopped fibreglass packing, as many teams also do. In a pinch, we've tore up some fibreglass mat to make muffler packing.

    We've made our own muffler, because the turbo has a certain...
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    My take on it is the following: You generally...

    My take on it is the following:

    You generally want your rear natural frequency to be higher than the front, so that if you go over a bump, your front and rear bump responses are out of phase, so...
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    8-18? a day? I thought I was bad with five or...

    8-18? a day?

    I thought I was bad with five or six.

    Good luck.

    Matt Gignac
    McGill Racing Team
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by John Stimpson:

    I'm not understanding how you can't...
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    The insert was a cylinder with a flange, ID...

    The insert was a cylinder with a flange, ID threaded for a rod-end. The CF tube was bonded to the OD of the insert, and the end rested against the flange. In this case, the tube is loaded in...
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    We have four main design criteria for determining...

    We have four main design criteria for determining pushrods vs pullrods: packaging, motion ratios, load pathes and CG height.

    Pullrods are easier to package for us, as at the front the dampers end...
  14. For something like this to work, it would need to...

    For something like this to work, it would need to have some input, either monetary or time, from all teams. This is why the TTC works, because everyone has an investment in it.

    Another thing, the...
  15. Makes sense for the caliper. I guess since the...

    Makes sense for the caliper. I guess since the seal is in the bore, the critical surface is the OD of the piston, and this can be ground really smooth.

    My main concern is wear of the seal for the...
  16. For the teams that have done custom master...

    For the teams that have done custom master cylinders or calipers, what surface roughness of the bore did you aim for? The mfg. of our seal does not give any concrete values, but it seems that par...
  17. For the teams that have done custom master...

    For the teams that have done custom master cylinders or calipers, what surface roughness of the bore did you aim for? The mfg. of our seal does not give any concrete values, but it seems that par...
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    But let's say the conversation goes like this: ...

    But let's say the conversation goes like this:

    Student: so we used rod-ends outboard in order to be able to adjust camber easily
    Design judge: What about the stress risers due to threads in...
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    Even if you do go with sphericals, it's no...

    Even if you do go with sphericals, it's no guarantee of design semis. Let's say you can justify the weight savings, and it amounts to something measurable when you consider all your suspension...
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    A bunch of people from mech eng at McGill do...

    A bunch of people from mech eng at McGill do semesters in Australia (UNSW, UWA, Melbourne off hand), and they all say the same thing about the people: "They're like Canadians with funny accents". Or...
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    Wood would most definitely end up being heavier. ...

    Wood would most definitely end up being heavier. To get a properly stiff arrangement, you'd need a rather thick sheet of wood, as well as some long-ish fasteners to attach them. Figure a 1/2" sheet...
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    Just looking at the number of emails everyone is...

    Just looking at the number of emails everyone is putting whenever someone has a CAD of some gizmo available, figured there had to be a better way.

    In the absence of space available, I set up a...
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    Just looking at the number of emails everyone is...

    Just looking at the number of emails everyone is putting whenever someone has a CAD of some gizmo available, figured there had to be a better way.

    In the absence of space available, I set up a...
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    Wow, Halifax is 15hrs by car from Montreal, and...

    Wow, Halifax is 15hrs by car from Montreal, and California is maybe 4 days away from Montreal... ouch, have a good drive.

    And nice car on your webpage!

    Matt Gignac
    McGill Racing Team
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    Well I feel like a moron. Anyone want a yzf600...

    Well I feel like a moron. Anyone want a yzf600 model?

    Matt Gignac
    McGill Racing Team
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