RC Car Action: Team Associated engineer Josh Alton teaches roll-center tuning

GPS · Mar 14, 2014

Roll center. You’ve likely heard the term thrown around by your buddies when bench racing, but do you (or they) really understand what it means? Did you know that it doesn’t just affect a single wheel, but also each end of the car, both independently and linked, from the front-to-rear? And just how do you find it? It’s a valuable tuning aid that most racers consider to be “set and forget” when it should be anything but that. We’re going to tell you what it is, how it affects your car or truck, and how the experts use it to their advantage on the track.

WHAT IS IT?
One of the goals of our race-tuning techniques is to get the car to carry as much speed as possible through a corner. There are many variables at play, but a significant one that racers don’t always consider is roll center. Simply put, the roll center is the point on either end of the car that the chassis will roll around left or right. Now, just where that is, whether that point is above or below the car’s axles, depends on the suspension geometry, in particular, the mounting points and the angles of the lower arm and the upper camber link (which usually plays the role of an upper arm). To give you an idea of just how important this setting is, a car’s roll center can affect how responsive it is, how it reacts to bumps, and how much traction it has in a corner.
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Read more and see photos via the source link.

Source:
http://www.rccaraction.com/blog/201...gineer-josh-alton-teaches-roll-center-tuning/

Dr.W · Mar 22, 2014

interesting. learn something new everyday

GPS · Mar 27, 2014

Dr.W said: ↑

interesting. learn something new everyday
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I thought it was pretty good too.

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