asparagus @ Sep 11 2007, 07:44 PM
Let's not spread around information that isn't true. A vmount setup is very efficient, the air that goes into your bay after being shuffled and sucked in by the front air dam is not a "directly straight" flow. It comes in and surges where there are passages to let it out, if you can make an efficient vmount setup, the bottom of the radiator(the big empty space toward the ground) will SUCK OUT the air coming in, thus making the radiator efficient. When you install a vmount vent(which is required), the vent will SUCK OUT the air coming in from the top too, so the radiator AND the intercooler will both have direct airflow. Also, airducts makes life easy.
Proof in air temps people say they are more efficient, I want number not peoples opinons of "Ohh that looks like it works well. Because Really I was one of those when I first saw it I thought it looked pretty cool so it must work good. But really if these people Care about cooling so much there are better ways to do it they just dont LOOK as cool.
Air to Liquid setups can be awesome if set up right, with a heat exchanger, a reservoir, the intercooler itself, a good high volume low pressure pump. They can cool the air temp charge way below any Air ti Air setup can and They dont take any space in front of the radiator which can sit in its NORMAL location and work like it was meant to.
Also about that Whole vacuum thing How do you know which has more vacuum just over the hood of your car or under it? IDK but wouldnt you think the one with more is gonna get more of the share of air so that means its gonna take air away from the other. So that means less cooling ability.
If the radiator has more vacuum behind it then the intercooler is not getting as much air as it could if it was in the airstream, but that also means you are now directing AIR under the car at high speeds, That will negate any down force you have added to the front of the car. Undercar areo is as important to keeping you on the road as Wings and other attachments perhaps even more so. So directing air to the underside of the car is not a good thing.
But if the Hood has more vacuum that means you may actually get a bit of down force out of it. But then that means that air is not running through the radiator. makeing cooling harder.
My biggest point is AIR does not Like to turn, like all matter it obeys the laws of physics "a body at rest will tend to remain at rest unless acted upon by an outside force" air is no different. I mean Why is a 240sx more aero dynamic than a School Bus? Much fewer Flat surfaces for the air to HIT and then have to turn. Radiators and intercoolers Have holes in them for air to pass through yes but when they are angled they create little angled Walls for the air to hit and slow down creating restriction. There is a reason why a straight tube has less restriction than one with a Sharp 90* bend in it. So that makes it more likely for the air to pile on it self at a high rate of speed and create a High pressure swirl in your V Mount "area" making the air travel through both coolers at a slower rate than normal reducing the ability to pull heat from them.
Really I see no benefit from the setup I think its a waste of time to simply look cool because other Nimrods do it.
