@jkf011
The reason passenger car engines are getting smaller is the use of advanced technology in their design, and that has historically come from race car technology trickling down to the consumer market.
Race car engines, of any kind, have almost always been blueprinted. And only the finest custom made components are used in them, even the casting of the block and headers, something that is cost prohibitive in consumer cars. In fact, most consumer cars are de-tuned to increase mileage.
Better tolerances equal higher hp per displacement unit. Smaller, lighter engines increase speed and response, just like light strong diaphragms increase speed and reduce latency in speaker drivers.
The reason passenger car engines are getting smaller is the use of advanced technology in their design, and that has historically come from race car technology trickling down to the consumer market.
Race car engines, of any kind, have almost always been blueprinted. And only the finest custom made components are used in them, even the casting of the block and headers, something that is cost prohibitive in consumer cars. In fact, most consumer cars are de-tuned to increase mileage.
Better tolerances equal higher hp per displacement unit. Smaller, lighter engines increase speed and response, just like light strong diaphragms increase speed and reduce latency in speaker drivers.