The flow path for the air is significantly nicer compared to a poppet valve. Also in theory since your port into the head is both the exhaust and intake port, you can get an unusually high cross sectional area for the port. The design also eliminates valve float as there is no reciprocating mass so the natural…

I am honored that you made a post about this. You did a lot more justice to the topic of rotary valves than most people do. Most just assume it is a Wankel rotary engine.

Well, they have to actually drive to make the list.

Mass Circle Jerks, got it

My dads old Pontiac would roast the tires shifting from 3rd to 4rh gear. It was bone stock, but must have had a special prototype motor that accidentally got installed. If he put $100 on the dash, you couldn’t reach it before it hit 100 mph.