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Zuk Buggy 2.0
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<blockquote data-quote="paradisepwoffrd" data-source="post: 659174" data-attributes="member: 4561"><p><strong>Re: Re: Re: Re: Zuk Buggy 2.0</strong></p><p></p><p></p><p>I cant argue as i don't know much about correct geometry for cone dodging but i saw this post:</p><p></p><p>[quote author=jesse]</p><p>Interesting tech here; you probably noticed that the rear suspension is not what you'd typically see in a moon buggy. Around 2003-2004, there was a trend of building 3-links with high roll centers (tall track bar mounts). Many of those cars had some geometry issues that caused them to lift a rear tire when side loaded. Everyone made the assumption that this was a characteristic attributed to the 3-link style suspension. </p><p></p><p>When I built Prickle, I built it with a 4-link rear, but the roll center is still very high (32"). That wasn't necessarily intentional, but with portals and 42's it's actually difficult to get the roll center much lower. I definitely had concerns that the high roll center would still cause the same issues that 3-linked cars with high roll centers had. At the first comp I went to I was already noticing some geometry issues. Obviously I've managed to work with it, but it's very inconvenient at times. </p><p></p><p>When I designed Cody's car, the goal was to drop the roll center as much as possible. That's why this car has uppers with very little triangulation. I was able to drop the roll center to 29", which I think is close to ideal for this car.</p></blockquote><p></p><p>Car is coming along nice. I would love to build a portal rig one day.</p><p>[/QUOTE]</p>
[QUOTE="paradisepwoffrd, post: 659174, member: 4561"] [b]Re: Re: Re: Re: Zuk Buggy 2.0[/b] I cant argue as i don't know much about correct geometry for cone dodging but i saw this post: [quote author=jesse] Interesting tech here; you probably noticed that the rear suspension is not what you'd typically see in a moon buggy. Around 2003-2004, there was a trend of building 3-links with high roll centers (tall track bar mounts). Many of those cars had some geometry issues that caused them to lift a rear tire when side loaded. Everyone made the assumption that this was a characteristic attributed to the 3-link style suspension. When I built Prickle, I built it with a 4-link rear, but the roll center is still very high (32"). That wasn't necessarily intentional, but with portals and 42's it's actually difficult to get the roll center much lower. I definitely had concerns that the high roll center would still cause the same issues that 3-linked cars with high roll centers had. At the first comp I went to I was already noticing some geometry issues. Obviously I've managed to work with it, but it's very inconvenient at times. When I designed Cody's car, the goal was to drop the roll center as much as possible. That's why this car has uppers with very little triangulation. I was able to drop the roll center to 29", which I think is close to ideal for this car. [/quote] Car is coming along nice. I would love to build a portal rig one day. [/QUOTE]
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