- #1
DJM111188
- 16
- 0
This inquiry is in relation to internal combustion engines. I am trying to figure out how to maximize the mass of air going into my engine. Because the more air that can get into the cylinder, the more power the motor can make. Now I've been researching Bernoulli's Principle and as I understand it: If the velocity of a fluid increases then the pressure decreases and visa versa... So if this is true then the actual Mass of air flow over the course of 1 min would be the same correct? Or am I missing something?
I am trying to understand how this works because in engines there are intake ports. These ports allow air to flow into the motor. Some people say large ports are the way to go because they flow more cfm but others swear by a smaller port which increases port velocity. From what I think I know, the more cfm would mean more air mass regardless of port velocity. The way I look at it is that if this head flows 300cfm and this other head flows 250cfm then the 300cfm head would induce more air mass and therefore make more power...
Though there is this gentleman who had a completely stock 600cc Honda motorcycle. He took it to they dyno and ran it for a baseline. Then he reworked the intake ports by actually adding some material to increase port velocity and took it back to they dyno. He increased hp throughout the rpms and I believe saw a peak gain of 12hp. Nothing else was changed and this was SAE corrected which Factors for ambient air temperature.
Anybody who can help me to understand and solve my self made dilemma I would greatly appreciated any feedback you can provide me. Perhaps I'm not taking into account some variables?
-DJM
I am trying to understand how this works because in engines there are intake ports. These ports allow air to flow into the motor. Some people say large ports are the way to go because they flow more cfm but others swear by a smaller port which increases port velocity. From what I think I know, the more cfm would mean more air mass regardless of port velocity. The way I look at it is that if this head flows 300cfm and this other head flows 250cfm then the 300cfm head would induce more air mass and therefore make more power...
Though there is this gentleman who had a completely stock 600cc Honda motorcycle. He took it to they dyno and ran it for a baseline. Then he reworked the intake ports by actually adding some material to increase port velocity and took it back to they dyno. He increased hp throughout the rpms and I believe saw a peak gain of 12hp. Nothing else was changed and this was SAE corrected which Factors for ambient air temperature.
Anybody who can help me to understand and solve my self made dilemma I would greatly appreciated any feedback you can provide me. Perhaps I'm not taking into account some variables?
-DJM