The Illusion is Dave Brown's version of the Tiporare. Matter of fact.... if you bought the GP kit, they gave you the building instructions for the Tiporare with the only difference being the front page and a extra set of notes that shows a few odds and ends.

The first problem you will have is the nose of this bird is very slim. There is just enough room to get a 60 sized 2s engine in there.....yet alone a 4 stroke. I am not saying that it can not be done...... just more work then it is worth.