I briefly read about the Coates Spherical Rotary Valve system about 6 years ago and was only mildly interested at the time. A good friend of mine recently sent me a link to this website because he was thinking about modifying his Pontiac Fiero V6 with the system and I totally forgot about the entire thing up to that point. If all the claims are true, could you really modify your engine to that much higher level of efficiency? Here's the link to the website, I figured all you guys would be the best qualified to investigate and analyse the pros and cons of this system. Thanks a ton!!!!
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