Opel GT Forum banner

intake port

  1. Supersonic Port Theory?

    Opel Engine Performance Modifications
    Something that intrigues me guys, supersonic port theory. With some strategic porting using SMALLER ports in some specific locations, you can see noticeable gains in performance. Interesting...Thoughts? I've been following it off and on for a couple years, but it has yet to catch on. I know our...
Top