Bodykit material question
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Bodykit material question
I was doing some random research the other day and learned a bit about polyurethane vs fiberglass. Now in my research I learned that Ferrari typically uses fiberglass whereas porsche polyurethane.
Now my question is when building a dedicated road car where speeds easily exceed 150 mph. How would you choose? Flexibility vs rigidity. Or would you opt for cf?
Now my question is when building a dedicated road car where speeds easily exceed 150 mph. How would you choose? Flexibility vs rigidity. Or would you opt for cf?
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By dedicated "road car" I'm assuming that means street car, and for street cars poly is by far and away the most durable. There is good reason it comes on nearly all street cars. Its not cheap but it still wins out in nearly all cases. However, here's the problem... its ultra expensive to mold and thus, there are very few options in poly.
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By dedicated "road car" I'm assuming that means street car, and for street cars poly is by far and away the most durable. There is good reason it comes on nearly all street cars. Its not cheap but it still wins out in nearly all cases. However, here's the problem... its ultra expensive to mold and thus, there are very few options in poly.
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Thank you for the clarification, but I believe my assessment still stands valid. Polyurethane is expensive to mold (inject) and has very limited options due to cost (note, it generally has a substantially higher weight as well). However its street-ability is better than the more rigid fiber/composite based options. Ultimately, his choice is going to be determined by the application, cost and availibility of the bumper.
However in the case of a track car where flexibility and streetability is not a large concern, lighter-weight and rigidity are key, which favors the fiber/composites options. Note a lot of the "carbon fiber" options available are nothing more than fiberglass with the carbon fiber weave bonded on and do very little in terms of true strength.
However in the case of a track car where flexibility and streetability is not a large concern, lighter-weight and rigidity are key, which favors the fiber/composites options. Note a lot of the "carbon fiber" options available are nothing more than fiberglass with the carbon fiber weave bonded on and do very little in terms of true strength.
Last edited by Zazz93; 05-22-2010 at 07:03 AM.
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