Boyette's Engine...
...A converted 3hp. Briggs-Stratton!
-Stage 2 and 3-

Installing a thicker cylinderhead to allow for a shorter internal port.

Here is the displacer cylinder mounted on the head plate.	Using a thicker cylinderhead plate reduced the tube length by using a port in the plate rather than the tube. This reduced the volume of air, which should increase power.
The displacer	And a closeup of the new displacer drive crank.
The engine with the burner assembly beside it on the bench.	The cylinderhead plate between the displacer and the top of the block (before attaching the displacer cylinder)
	The engine now reaches 600 rpm. The next is increasing the displacer volume! Stage 3 is here! ***** Video of engine Click here
The burner removed from displacer cylinder.

Pictures provided by Boyette White.

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