Recent content by garthbro

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    Improve speed on flat portion.

    My weight is concentrated about 3/4" to 1" in front of the rear axle...no wheelies. Embarrassed that I didn't focus more on how the car was performing during the race, but I don't recall it wiggling a lot...I certainly didn't have my attention drawn to that. Funny, though, I did seem to notice...
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    Improve speed on flat portion.

    Should have also mentioned that I designed it to be a 3-wheel rail rider. During tuning, I had a fairly "gentle" bend into the center rail, but to be honest, I didn't focus much during the race on the results or if it was bouncing off the center rail. I was thinking of burnishing the wheel...
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    Improve speed on flat portion.

    Had a good showing at today's derby - finished second and moving on to the next round. Thanks for all the great advice from the past! In the races, I observed that my car was clearly the fastest on the downhill but lost leads on the flat portion of the track. I don't want to do any major...
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    Alignment of Pinecar Single-Axle

    Thanks for the feedback. After thinking about it for a while, I'm thinking I might do the following: Rear wheels: - Cone the wheel hubs (I did not do as much coning originally as I could have) - Light sanding and cleaning of the wheel surface Front wheels: - Check the wheel bore for any burr...
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    Alignment of Pinecar Single-Axle

    Thanks for all the great feedback..races were this morning and won! Here's a quick summary of what I did: - Polished axles - Polished wheel bores and hubs where they contact body - Made sure rear axle was adjusted (was able to rotate to get where I needed) so that rear wheels were aligned -...
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    Alignment of Pinecar Single-Axle

    I'm wondering whether I can bend the axle any myself...have to go back and read the rules again. If I cannot modify the axle (or if I don't go through the trouble to do it), I figured I would at least raise one of the front two wheels (i.e. three wheeler) to reduce rolling resistance. I'm also...
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    Alignment of Pinecar Single-Axle

    Appreciate the quick feedback... I've seen the advice to cut the solid axles. Unfortunately, the rules state that the axles cannot be modified. I'm going to polish the axles where the wheel hub will run, but I'm expecting that's all I'll be able to do. Definitely clear on making a three...
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    Alignment of Pinecar Single-Axle

    We are preparing for a Pinecar race, but I've found very little suggestions on how to address alignment of the single-piece axle. When I roll the axles on a flat surface, there is little "chatter", so they seem fairly straight. Also, the axle slots are already cut in our wood block...