Compressor Housing Materials

In Simple Terms

F1 teams can make compressor housings (part of the turbo engine) from a special aluminum alloy that contains up to 2.5% lithium by weight. This is a specific exemption that allows this higher lithium content compared to the normal restrictions that apply to other engine components.

• Compressor housings can be made from aluminum-based alloy with up to 2.5% lithium content
• This exemption is specifically granted and overrides the lithium restrictions in article C15.6.1(i)
• The material choice helps optimize turbo performance while maintaining regulation compliance
• Only the compressor housing gets this exemption, not other engine parts