Click on any picture for explanation and larger image

Body Modifications - scoop
The next task was to build a scoop onto the existing deck lid. Again the tape measure came out as we built a rough frame from plywood, cutting the contours of the existing deck lid into the bottom side of it. We filled the rough frame with foam and let it cure.
This would form the basis of new scoop. The mold was sculpted to the desired shape constantly checking for symmetry and then finally smoothed out with coarse sandpaper. It was then covered with a release agent (duct tape) and the first layer of fibreglass was laid down. After the fibreglass cured we trial-fit the beginnings of the new scoop to the deck lid. After more fitting, trimming and adjusting the scoop lined up nicely with existing lines of the deck lid. After we positioned the scoop we added three more layers of fibreglass.
The paint was ground away around and underneath the scoop position on the existing deck lid. A layer of fibreglass and resin were laid down onto the deck lid and the scoop was set in position and temporarily screwed into place until the resin cured. Once the glass had cured more layers were laid down around the edges of the scoop and the screws removed.
The belly pan was treated in much the same way. The exhaust channels in the original were filled with foam and sculpted following the existing lines. The release agent was laid down with a layer of fibreglass on top. Once the fibreglass set up the backside of the channels were cut away and the foam pulled out.
The centre opening for the exhaust in the grill was formed with cardboard and plastic, again duct taped and then fibreglassed. Once a basic shape was there it was merely a case of building onto it with fibreglass and then sanding and grinding away the excess until the final shape emerged.