Made a splitter and diffuser for the car. It's unknown what the impact is but I can still get the car on and off the trailer and nothing fell off at speed at the track. The design was short of borrowed from a Caterham blog
http://csr200.blogspot.com/2014/05/rear-diffusor-and-front-splitter.html. Either way I had never made anything from carbon fiber before. Design is a carbon / foam sandwich, splitter is a pound or so and diffuser around three, seems pretty light for what they are to me. Including a couple picts of the mounting system and a pict of my high tech splitter deflection measuring system. Vertical section of the splitter is aluminum glued to the carbon with six ten epoxy and a wrap. Rear diffuser mounts are two piece so they don't stick out when the diffuser is off. Should have an aeroscreen done soon.
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epoxy.jpg
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splitter.jpg
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splitter mounts.jpg
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splitter deflection.jpg
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diffuser.jpg
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diffuser mounts.jpg