Quote:
Originally Posted by johnneilson
pneumatic springs have been around for some time now, still opened by cams.
variable cam timing has also been around for some time, is in many production cars today.
I read years ago about electromagnetic valve actuation experiments. Not sure it has made it to the track yet.
Personally I like the older desmodronic valve setup.J
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Here is a video of a Renault F1 engine on the dyno. This engine used the EM valve system. This pull is programmed to simulate a lap on the track. The glow outside the fuel flow above the injectors is plasma caused by the high speed air flow.
The engine is peaking at 21000 rpm.
https://youtu.be/y2iBbwocYZw