Lotus Elise S3 2ZR Billet Camshafts
Manufactured for us by a well known UK high performance camshafts supplier.
Set of billet camshafts - with increased by 0.5mm lobe and 10 deg duration.
Often we see reground camshafts used instead of this billet offering, however increasing lobe can be only achieved by reducing the base circle, something not possible with reground camshafts. This is perfectly fine if the valves are directly actuated but in case of the 2ZR, the engine "finger" followers are used. By grinding the base circle you change the geometry of these which pose a risk of "dropping followers"