This paper discusses the use of titanium exhaust pipes for Formula One race cars in weight reduction. Newly developed processes for titanium material including heat treatment providing an acicular structure, oxidation resistant coating, sandwich press forming, and investment casting manufacturing have achieved a 20% weight reduction. This specification was not applied to race cars but provides technology for lightweight titanium exhaust pipes.
Article of Honda R&D Technical Review F1 Special (The third Era Activities) (266 - 268)