OK everyone, we need a little more room in the rear.... I had not planned for the frame to pinch as much as it did when I welded it. Pork Pie didn't like the angle we had, it calculated at 9.8 degrees.... narrowed a little too quick for good aero. I knew it would move, just not as much as it did. Sometimes the plan doesn't work...
So I cut the frame off between two of the welds that narrow the frame and started looking at what is next to get it the length and angle I need. I had some 1.25 square tube x .083 wall so I cut the piece in half and inserted it about 2 inches into the 1.5 tube... fit like a glove with a little help from El Kabong. The rear is now longer, and a bit lighter and the transition angle now calculates to 7.4 degrees. My guess is the car is about 14 inches longer and at a better angle right now... I will add a couple of rosebuds and weld it up to ensure everything stays where I want it. I will figure out a good final length after welding.
If all works I want the ends of the frame to be about as wide as the parachute tubes.
Enough for today