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Under the skin: how camless engines make 300bhp per tonne with 20% less fuel

1 month ago   |   By Autocar

Koenigsegg's freevalve engine promises performance and economy, but how does it actually work?
Being all things to all people is something combustion engines have never been much good at but supercar maker Koenigsegg may at last have that one licked with its Freevalve technology.
Freevalve does what the name neatly implies: frees inlet and exhaust valves from the constraints of the traditional camshaft used to open and close them. The technology was aired in the TFG engine of the Koenigsegg Gemera at the virtual Geneva motor show in March and is due for production in 2022.
The so-called...
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