Algodoo

7 Cylinder 4 stroke throtleable radial collision engine
Just another radial 11.1 liter 680 cubic inch
Features fairly accurate valve timing
I'm still having trouble with the counterweight issue so this engine
is NOT ballanced for low speeds
Controlls in scene
Please suggest improvements
PS you can also turn air friction on and off and change the value to vary the load
on the engine
This uses a lot of parts from the 9 cylinder but I have reduced the parts count by a bunch by making some non colliding stuff into polygons to hopefully reduce lag
The engine runs better and more reliably at 200hz