Roelof

Since we are talking about new designs I just drawed an idea what is in my mind for a long time and would be interested to see what it does. It is a some kind of a boost port but then through the piston

Ruune

That's an interesting idea, however it'd be a real challenge in getting the rod to form a good seal against the hole in the center of the piston. The lobe on the piston would seem to grind on the piston and wear out one of the two. Good idea though.

wingracer

iTrader: (24)

Interesting but like he said, almost impossible to get a good seal against combustion pressures.