I understand that just putting in a open k&n will suck hot air but I would guess you get some kind of gain probably not much. But it seems to me the stock CM S air box sucks cold air from one of the under bumper ducts. So since nobody is making a true CAI would a drop in K&N filter in the stock box give me something while I wait?

 

Actually, yea a drop in filter should get you some gain it breathes alot better than the stock filter.

 

For what i saw... that hole in the airbox is not 100% efficient on the countryman because is not connected to a scoop like in the hatchback cooper s.... So i think that it's just "sucking" warm air..... Infact that airbox is build for the hatchback not for the countryman, i think there's a reason for that

 

Well the hoodscoop on the coupe is not fully functional unless you take a dremel to it witch I had to do.

 

Yeah...

 

An educated motorhead would have sense enough to install an aftermarket filter that was drawing in outside air.

Of course any filter that doesn't have restrictions like a factory filter and restricting air box will have more horsepower....BUT a TRUE COLD AIR INTAKE will have MORE HORSEPOWER than one sucking heated engine compartment air.
IT'S A PROVEN FACT THAT COOLER AIR PRODUCES MORE HORSEPOWER. WHAT DO YOU THINK THE PURPOSE OF NITRO IS???

Nitrous oxide is stored as a compressed liquid; the evaporation and expansion of liquid nitrous oxide in the intake manifold causes a large drop in intake charge temperature, resulting in a denser charge, further allowing more air/fuel mixture to enter the cylinder. Nitrous oxide is sometimes injected into (or prior to) the intake manifold, whereas other systems directly inject right before the cylinder (direct port injection) to increase power.


There are a lot of clueless people out there.

 

Doesn't the CM have that little "scooplike" opening above the front bumper? Does it do anything? I noticed it the other day when I was checking out the different models. The S models all have that opening, but I never bent down to look it over. Hmm..

 

Good for you, at least you understand.

 

nope..... it's just esthetic :D

next week i'll put a ITG panel filter not a good solution as a cold intake but i think it's worth the money

 

Actually the scoop in the front bumper is for the intercooler.

Ok. I understand everything you are saying. Our cars are turbo, so cold air goes in reaches the turbo and heats up again, then goes through the intercooler to drop temps again, and then into the intake manifold. All of this is obvious, I know this. The car still takes in air from the stock intake pipe on the bottom half of the intake box. The issue is, I am not taking in hot air, I measured and tested this more than once on the car, the air inside the box is much cooler, than the in air in the engine bay. On various runs i have tested it out before I decided that I was going to keep it on. I am not ignorant and I am not going to leave something on my car if it doesn't work. I put the car on a dyno prior to the modification, and with the modification, and saw a very decent gain. I am not here to argue with you I agree with everything you say, and am not trying to say you don't know anything. I mean if something better comes out, that shows proven results, hell I will probably buy it, but right now I have an intake on my car that is showing results and I cant complain. Thanx for all your help.

 

may I ask what the gain was?

 

8-9 hp which is decent, I know I could get more out of it, but it still isn't bad.

 

I'm sorry but how would that work at all, the filter is either getting no, or very little air without the ram, the filter should not be in that enclosed cover without the Ram/hood scoop.

 

Actually some are some aren't depends when made. If your installing the DDM you need to have it functioning.

I just don't see how this would increase performance though. Ideally you want cold air, which with the DDM Ram you get from the hood scoop (or in other CAI ithe filter is located away from the engine where you can get good air flow). In normal circumstances the cover around that filter keeps the hot engine air out, but gets a constant supply of air from the Ram. In a typical intake non CAI (ie Alta, K&N) you have a big air filter, now it still taking in warm engine air, but because of the larger filter your getting better air flow. This however looks like a botch job (no offense to OP) while you don't have to have the Ram air attachment, you have to create good air flow around the filter, in the box thats still attached the filter looks like its getting very little air especially with the hood closed.

 

Even though the CM does not have a scoop, there is still a hose running from the front of the car near the headlight running cold air up under the filter. I have DDM Street CAI on mine and it uses the bottom of the stock box, which still has the stock intake hose attached. I think the filter housing of the OP has this. It is in no way better than a closed system, but having the smaller opening without the Ram Air should still be better than the open filter system in my car, as long as it has the bottom of the stock box.

 

Ordered today a ITG filter When i'll receive it i'll post some pics

 

the stock filter is completely closed on top, it draws air from a tube that runs to the front of the engine bay. This is how it is on all the 07+ MCS

 

every chemical engineer who reads this is laughing histarically, I know I am. does colder air make more power? hell no. cold air at a density of 1 mol/22.4L and hot air at a density of 1 mol / 22.4 L will provide the same amount of O2 for combustion. It has nothing to do with temperature persay, but mol's of air, so you are correct in saying a MORE DENSE (denser is not a word) charge provides more power. That being said, even though the expansion of NOx from a liquid to a gas is quite endothermic, adsorbing a lot of heat, if it was not combustible it would not do nearly what it does for performance. There is a reason they inject NO2 and not liquid N2, which is much colder.
NO2 actually acts as a high pressure oxygen and fuel supply (ignition of N02 actually provides more O2, and when combined with a hydrocarbon (gasoline.. helloooo!!!) has nice effects.

"
The chemistry of nitrogen dioxide has been investigated extensively. At 150 °C, NO2 decomposes with release of oxygen via an endothermic process (ΔH = 114 kJ/mol):
2 NO2 → 2 NO + O2As suggested by the weakness of the N–O bond, NO2 is a good oxidizer. Consequently, it will combust, sometimes explosively, with many compounds, such as hydrocarbons."

little blurb that is pretty much correct.

in all colder air is a good thing, as it is more dense (@ the same barrometric pressure), but honestly, forced induction engines dont care what they are pulling in, as long as the intercooler is doing its job. Your talking about 1-2 whp.. who cares. (non heat soaked at WOT)

 

Thanks for the clarification. Btw, "histarically", "persay" and "barrometric" aren't words. Check your spelling and word spacing before ripping into a post.

 

http://www.merriam-webster.com/dictionary/denser

Also, thanks for the in-depth explaination.

 

My friend did this to his Countryman S and it sounds like a beast. He was talking about refining the brackets and making some kits. Should I get one? He says it increases power and fuel economy??

 

I like the fit and finish of the VIP system looks real nice under the hood. Your in TX, Van makes his units in AZ so you should get it in no time.

 

Got a VIP intake for Christmas. Nice install and quality part. The car seems peppier for sure and the blow off valve is cool.