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Design Strategies

 

Starting From The Rules

A good way to start your first race car is to build from a set of rules. While the rules won't tell you the best supplier of a part, they will simplify the variables of your design by specifying certain part models be used. Where you find the parts is your business.

In sanctioned classes where a great many properties of the car design are specified in the rules, it is easier and cheaper to obtain parts because manufacturers are usually specified in the rules. Looser rule books usually mean the freedom to explore more exotic materials and systems, a more costly proposition.

Incorporating Rules Into The Design Process

Assuming you pick the class which suits your ability, you will want to make sure your design complies with the rules. For the rules-based designer, every component or part must be checked for compliance. This is not as difficult as it sounds (except in engine and drivetrain).

The first place to start is by sketching out the approximate shape, in scale, of the car you intend to build (and try to follow the lead of winners in your intended class). Having diagrams of the engine and other components you intend to use is also helpful. Once the sketch is satisfactory, make copies of it so that you can annotate the (usually) many rules on them. Attach to the annotated sketch, a list of any rules which may be important but not visually drawn. All together, this will give you a picture of what you can and can't do in particular areas.

As you design, refer to the sketches and lists to guide decision making. When you have found the right part, mark it, so that it is known that the rule has been adheared to. And when re-selecting parts, always review the rules relating to them. Annotate any ideas which are grey areas. In the future it may be wise to get them cleared with the sanctioning body.

One last comment, is that you should verify the rules aren't going to change drastically, before designing anything. There is no reason for not contacting the sanctioning body before beginning work.

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(c) 1999 Matt Gartner