Duke engines I found this ineresting

[Jess Tolbirt]

could this be the replacement for the Valkyrie engine. I believe this is why we dont have any cruisers that look like the old valks,, the are actually making a new bike using the style of the old valk to accept this new Duke engine..they need some of you engineers to help with the design for production so come on guys, lets get this thing rolling and i will sell the harley....

https://www.youtube.com/watch?v=ihXV9mOncvs

[mike72903]

Interesting.    

[The emperor has no clothes]

Seems like a good idea. 

[mike72903]

Don't sell the Harley.  If you want better performance and reliability I have an old Suburu Wankle engine you can slap in there

[RP#62]

That concept has been around for a long time.  Never seems to get any traction.

-RP

[..]

That concept has been around for a long time.  Never seems to get any traction.

-RP

Yep, where's the commercial application?

[art]

Probably never go anywhere,the auto industry has too much invested in conventional engines. They don't like change too quickly.

[John Schmidt]

That would work great with an engine I designed some years ago, couldn't get anybody to back me and I sure couldn't afford either the R&D or patent work. In its simplest form, it was a two cylinder motor with two moving parts. Induction and exhaust is basically the same as the Duke method. When I hit the Lotto maybe I'll pursue it a bit further.