Rob Dahm, of the same name's YouTube channel, is still working away on one of his most ambitious projects to date - the 12-rotor engine, a behemoth and a labor of love. It has enjoyed a lot of ...

Enter Rob Dahm, with his quite-frankly-insane creation built by Tyson Garvin currently holding the undisputed heavyweight ...

At least, we thought that was the pinnacle. Because now rotary specialist Rob Dahm has his hands on the Y-configuration 12-rotor,15.7-liter, tri-turbo engine built for a speedboat, but never used ...

Unless, apparently, you're rotary wizard Rob Dahm: then you can slap a turbocharged single-rotor Wankel in there, and add power while actually cutting weight. Dahm's latest project is to swap an ...