Comment on Duke Engines' compact, lightweight valveless axial engineparentComments−JoeAltmaier11ySure its different, and comparing it via the normal means (litres or rpms) won't work because its so different - those means assume a substantially identical engine or they don't work at all.
Comments
Sure its different, and comparing it via the normal means (litres or rpms) won't work because its so different - those means assume a substantially identical engine or they don't work at all.