Thread: The truth about "ram air"
View Single Post
Old Mar 7, 2010 | 02:44 PM
  #13 (permalink)  
onehundred80's Avatar
onehundred80
Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 648
From: Ontario
Default Re: The truth about "ram air"
When you say RAM air I understand it as an increase in pressure, CAI's provide more and cooler air they are not providing air at an increased pressure. The air filter will have a lower pressure on the engine side than in front anyway.
Functional air scoops provide more available air so that there is enough for combustion.
NA's benefit having more air to mix closer to atmospheric pressure, the lack of air will produce less pressure inside the intake manifold and therefore less air ingested into the engine. SC's benefit by having enough or more than enough air to compress and therefore do not starve.
The more air than can get into a NA's intake means that the pressure inside the manifold will rise closer to the ambient pressure, but never get too close to exceeding it. True RAM air would exceed the ambient air pressure inside the manifold, just like a SC.
Sticking your hand out of a car window you feel the air hitting it and pushing it back, but some of that force is the lower pressure behind your hand pulling it back, this is off course similar to the lift that a planes wing generates to keep the plane up in the air.
But please keep your hands inside the vehicle at all times, especially at the lion safari park.
 
Reply
0