I have a glass fibre car with a rotten mild steel space frame chassis. Is it feasible to replace (partially replace) with your carbon fibre tubes and sections? I mean would they be strong enough. The main rust is in the main backbone chassis and the sections that come out along the sills. If i have a 1inch mild steel tube section what would i replace that with for same strength?

I would replace complete section for instance the whole backbone not just patch up the rusty bit.

Graham

I find myself considering doing this as well  for the areas of the chassis that hold the body on, the biggest issue will be that the tow points are in this area so need to take loads of car being towed.... I'm thinking of using tube or rod bonded into carbon sheets that I make myself, might even incorporate the rods or tube in the actual infusion process of making the panels.