From the Marine Corps to Air-cooled Porsches, engine builder Jake Raby shares his history and provides a glimpse of what the future looks like on this episode of Hidden Horsepower. Host Joe Castello along with Lake Speed Jr discuss cylinder bore coatings and surface finish, and Jake shares details about his unique test platform that is rapidly developing the next generation of cylinder bore material. #Aircooled #FlatFour #FlatSix #Porsche #PistonRings #HiddenHorsepower etc...