Originally Posted by onehundred80
The reason air comes out of Squirrels side vent so little is because it is much easier for the air to go out a bigger hole, and the air that comes out of those vents is only being sucked out in an effort to balance air pressure. Air that is going into the engine bay will come out all exits from under the hood, but most of that will go out the largest gap, down the tunnel if the pan is on.
To test the venturi effect on a blind cavity stick your head out the window of a moving car and open your mouth while facing at right angles to the direction of travel, you will find the air sucked out of your mouth and nose. Face rearward and it is worse. You could not expect a CAI to operate well in such conditions. Face the direction of travel and you have too much air. The faster you go the more evident are the effects.
Do not do this while driving.
Burping your engine at the lights would do very little to cool the CAI as air is very poor as a coolant when it passes over a smooth surface, that's why a multitude of fins are used in actual cooling practice. Turbulent air is much better, lamina flowing air as in a CAI tube is poor. Turbulent air causes all or most of the air to be used not just some. The slower moving boundary layer of air in the tube gets hot and the air above that remains the same. Turbulence in a CAI is prejudicial to the cause and minimizing the thickness of the boundary layer gives more efficient air flow. The inside of the boundary layer causes turbulence at the edge of the lamina flowing air and that is not wanted either as this turbulence cools nothing. The boundary layer is caused by friction and the more polished or slippery the surface the thinner the boundary layer will be, it will also reduce the cooling effect as well as it will depend on radiant heat loss more.
It is a quite complex area and I know little about it. Although I have been involved somewhat with water cooling and the principles are similar.
That's my take on it anyway.
Dave I have patents and proprietary devices in vacuum technology but that doesn't mean I know what I am saying here. We could expand this t!t for tat sillyness into more nonsense but...
The reason burping my engine cools is because it brings in fresh colder air into the engine.. That is just too simple Dave not complex at all.
After all your nay saying about positive pressure air flow, now you say it matters in reverse. Seems you just want to knaw on a bone. Well have at it, but not with me.
Bringing cold air from the side of the vehicle is not a novel idea. Take it up with the engineers at Volvo, Peterbuilt and Diamler Mercedes.
roadster with a stick
BTW we did all those excercises with the ram experiments. I reported on the detrimental effects of the turbulence remember?
I get it OKay?