Suzuki 2 Strokes

The Merlin V12, 27 litres
http://www.youtube.com/watch?v=e1mh99ZLXcw" onclick="window.open(this.href);return false;

The Griffon V12, 36.7 litres (contra-rotating props)
http://www.youtube.com/watch?v=iUlXY-J8BbI" onclick="window.open(this.href);return false;

The Meteor Tank engine V12, 27 litres
http://www.youtube.com/watch?v=ggEm-rfrw04" onclick="window.open(this.href);return false;

A guy here in denmark make scale model engine of the Merlin V12... Incredible work. He even made his own motorcycle AND engine!

http://www.123hjemmeside.dk/gunnarsorensen/30857377" onclick="window.open(this.href);return false;

Guy Martin has a merlin in his shed.
http://www.youtube.com/watch?v=s_A9m21drwY" onclick="window.open(this.href);return false;