Lamborghini developing composite conrods for next-generation Aventador

In its efforts to further lightweight its supercars, Lamborghini’s Advanced Composite Structures Laboratory (ACSL) is working with Japanese composites processor Uchida to develop carbon fiber composite connecting rods (conrods) for its famed V12 engine used in the Aventador model. Prototype components cured using vinyl ester as the matrix resin weigh in at 203.5 g versus 457.75 g for conventional steel conrods. If adopted, Lamborghini would achieve a significant weight saving of more than 3 kg.

The new conrods are cured in an autoclave in a 10-minute cycle, and incorporate metal rings and other metal components that are inserted post-process and held in place with highly heat resistant adhesive. Besides weight savings, the new conrods also contribute to enhanced rotational efficiency according to Uchida.

In June of last year, Lamborghini opened a carbon fiber research facility in Seattle. The Advanced Composite Structures Laboratory (ACSL) is responsible for unlocking new potential in carbon fiber. The official grand opening of the new ACSL also marked the 30th anniversary of Lamborghini's use of carbon fiber reinforced polymer in its vehicles.