anybody see this before?

 

No. But those are just rotary valves versus reciprocating valves.

 

Yep, 2-cycle technology meets 4-cycle world. The theory is pretty sound, no springs to worry about, no valve float [ever], and a positive seal all the time. The drawback is that the port shapes and sizes are paramount to how well it will perform, if they aren't timed right, you could get pre-ignition and back firing still, which could scorch the valves and wreak havok on sealing ability.

 

So whens the bolton version avaliable for my car!??!?

Seriously though, what are some power advantages to doing it like this if any? When compared to a similar size engine, what other things will something like this help?

 

Well, as far as power advantages, you can go with more agressive port timing without raising other issues like spring bind and drag in the valve train on a conventional head, so the effieciency of the head will be a constant no matter what kind of crazy port timing you go with.

The downside is that right now, I don't believe they have the capability to handle variable port timing [VTEC, etc...] since they're still going to be crank driven.

 

the timing can be adjustable, like VVT-i or VTC. who designed this?

 

yeah who makes this engine?

 

I'm not sure what particular engine this is a picture of. I've only heard of some obscure things about such a system, first time ever seeing one.

 

thats insanity. If you had a vtc system, you could in theory have a vtec system as well, if you could advance and retard it as fast as it turns.

 

http://www.coatesengine.com/