Why Are Desmodromic Valvetrains So Rare In Engines?
By staff@jalopnik.com (Benjamin Gracias)••Jalopnik
Desmodromic valvetrains allow for higher revs without needing to worry about valve float. So why do automakers not often use them outside of motorcycles?
If desmodromic valves offer high-rpm dependability and prevent valve float, why didn't more manufacturers adopt this tech? The answer boils down to basic manufacturing economics, engineering prioriti…