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Color0's Micro RC Blog -- A technical brain dump from the mind of yours truly...
Z Science
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Mini-Z Aero Development, Pt. 1

Posted 02-06-2011 at 09:15 AM by color0
Updated 03-08-2011 at 09:28 AM by color0
Been a long time since I've posted here, so I thought I should make this post worthwhile by introducing some uber-cool stuff I/GSR have been up to in the last 9 months:

Aerodynamics.

People used to tell me that aero did not matter at 1/28, that a body's weight balance was more important than the downforce it produces. We've long suspected that's wrong, but some recent developments have completely blown it out of the water -- aero matters, and a lot! I'll start off...
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Suspension Dynamics Pt. 3: Final Notes

Posted 03-04-2010 at 02:59 AM by color0
Updated 03-08-2011 at 09:30 AM by color0
This week, we'll cover some final things to round out our theoretical view of suspension tuning. It's really just two items so this will be a quick read.

First: Ride Height. The general rule for on-road racers (i.e. Mini-Z's) is that lower is better. Let's look at our equation one final time:

Mx'' + Cx' + Kx = F(x)

Lower CG means less weight transfer, which means that the absolute value of F(x) is reduced. That lends itself nicely to reducing the amount...
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Suspension Dynamics Pt. 2: Why Tuning Even Works

Posted 02-20-2010 at 07:21 PM by color0
Updated 03-08-2011 at 09:31 AM by color0
This week, we're going to go over some accepted "tuning rules" for Mini-Z, and explain why they work in the scope of the theory we went over last week, i.e.

Mx'' + Cx' + Kx = F(x).

Of course there are plenty of aspects of car tuning that don't involve the springs and dampers at all, and a whole other book of subtleties based on tire characteristics alone -- let me leave those for later articles. So without further delay, let's begin.

Tuning...
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Suspension Dynamics Pt. 1: Springs, Dampers, and "Jounce???"

Posted 02-09-2010 at 06:50 PM by color0
Updated 03-08-2011 at 09:31 AM by color0
So, recently there was a question posted on the forums regarding the function of springs and dampers: why do we need them, what do they do, how do we use them? I thought that this might be a good time to cover some basic theory behind car suspension dynamics, and hopefully answer these three questions using as basic language as possible.

Basic suspension tuning theory dictates that to maximize tire traction, therefore cornering speed, the fluctuations of load on the tire must be minimized....
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