There has been mention of coatings and other surface treatments for con rods in previous RET Monitor articles, and in the articles on con rods in Race Engine Technology magazine (see issues 40 and 58). At the recent Autosport Engineering show in Birmingham, England, I discussed the matter of rod coatings with a supplier, who showed me a couple of con rods he had to hand. The supplier explained to me that the con rods were coated with diamond-like carbon (DLC) with the aim of reducing...