need info!

i was hoping that someone could give me a website with the pics of rotory engines and a list of all the parts and were they go.also im gettin confused that there is only 2 rotor housing ,but with 1 rotor in each,why is ,or does it appear, there is four pipes together on the exhaust manifold. thx in advance for any help.

http://files.automotiveforums.com/gallery/watermark.php?file=/503/67256ghrerher.jpg
some page in a magazine, sorry its so small but it wouldn't let me load it if it was any bigger

http://files.automotiveforums.com/gallery/watermark.php?file=/503/6725613BParts.jpg
theres the whole thing taken apart

hopefully this helps a little

EDIT: now that I think about it, that might not be exactly the engine your looking at, but whatever its all I had

www.howstuffworks.com

That mag clip is also a website...best one i've found.
http://rotaryengineillustrated.com/