Rob Dahm, notorious rotary-powered car builder, has firmly jumped into the deep end of the pool with his latest project: The ...

There are 12 rotors (4 rotors in each bank), which are the same size as those in the widely-produced Mazda rotary engine, so two rotors make 1.3 liters of capacity (in the traditional way the ...

It sounds more like an old-school radial aircraft engine than anything that should power an automobile of any kind.

when someone asks "Why?" Of note, Garvin's 12-rotor engine is probably the most number of rotors we've seen in a rotary engine. Dahm has shown a 6-rotor example at the start of the video ...

Rob Dahm is refining the unique 15.7-liter Y12 rotary engine, originally designed by Tyson Garvin as a twelve-rotor ...