Conceptual wrote:Please direct me to the link of the better system?
Well, I wouldn't say rotary valves are better than anything else, but don't take my word: I'm also the kind of person that believes that racing is about technology, like it or not. We had a thread on it ("What is keeping rotary valves engines from F1?"
), and I don't know if I'm overstepping if I say the forum agreed on four "problems":
- no variable timing (that's perhaps the answer to the thread's question)
- poor sealing (worse at high RPM)
- oil leaking (idem)
- position of spark plug is not optimal
Coates makes incredible claims on all these objections, and so I posted at that thread, giving the same link Conceptual gives. Coates claims their valves don't need oil and have perfect sealing, and somehow the spark plug position is not that affected.
I also showed and old Lotus system that included variable timing, before somebody accuses me of being an "enemy" of rotary valves...
Anyway, I believe they belong to the realm of the gadgets, for the time being, even if in that very thread somebody claimed to have been working in its development, but the project got nowhere because of "perfid" regulations. That was a year ago, exactly, and I remember vaguely reading something about Woking working on it, but you know how journalists are...
Of course, regulations are super-clear. I bet the SAE would be happy with a "valve race", if regulations were loosened, but I'm not sure if at this moment in history this research is relevant. ICE future seems bleak, given oil at 100 dollars a barrel.