Weight reduction effort continued by replacing the 12 gallon fuel cell (JAZ plastic tank in steel can) with a 3 gallon aluminum tank. Shaved 20 pounds.
In the interest of better performance though, I added 5 pounds by removing the 10 lb aluminum spoiler and replacing it with a 15 lb carbon fiber wing/metal supports.
I made the individual elements by doing wet layup over pink foam pieces cut using Nichrome wire/2-amp battery charger.
Layers of CF fabric were laid out on plastic sheet and saturated with epoxy resin and squeegeeing. After 2 layers, another layer of plastic was laid on top and with a dry squeegee, the entire area could be worked to get complete saturation and air void removal. Two such layups were made for each element and then they were draped over the foam core. The short elements were hung for curing, while the long elements had to be placed horizontally in the companion section of foam that had been pre-covered with packing tape (the epoxy doesn't stick to it). The resin had a 6-7 hour pot life, but I only mixed enough resin to do the element that was being done.
After two days curing, the edges were trimmed and aluminum side inserts with rivnuts were epoxied inplace. The inserts were hammer formed over wing profile oak mandrels.
Premade CF panels were used to join the sections including the provision to adjust the second elements. The side panels were painted and the wing elements were wrapped with vinyl.
We had our last AutoX last weekend and I was pleased with the first outing. The seat-of-the-pants impression was that it was more planted everywhere. The datalogger indicted that in the sweepers (35 to 40 mph) where 1.5g had been the norm, 1.6 to 1.65g was experienced. There was one point at 1.7g.
https://youtu.be/Nr6l67hi0rUOK, now back to more lightness.