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Originally Posted by t walgamuth
of modern gas engines use variable timing on the valves.
formula one engines use pneumatic operated valves i think. and i think they may be electrically activated instead of with a cam, and if that is true then they can be individually controlled by a computer. and i hear that they are turning something like 20,000 + rpm.
internal combustion engines have come a long way since the 1930s when the highest tech was a supercharger and desdomonic valves on the mercedes grand prix engines.
fun discussion.
tom w
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Yes, this is a fun discussion and I've learned a lot, too. I don't follow road racing, but I briefly watched one on tv a few year's ago. I knew the engine's were screaming compared to when I was a kid, but I had no idea they were up in the 20k range. Do you have an idea of what the stroke is on those engine's? I apologize for being too lazy to look it up, but could you explain the meaning of desdomonic as it applies to valves?