[ModoMini]

Found this on the SEMA website as I was looking around. I think I'll have to order this one if it's priced right.
True Cold Air Intake

[Chalky]

Please explain to Dorks just exactly what it is and what it does. Thanks.

[JaridP]

Desription: Cry-02 air charge freezer utilizes cryogenic technology to freeze the air charge by passing the air over a CO2 charged aerodynamic bulb located in the air intake stream. Dyno testing has shown up to a 35% drop in air charge temperature.
This basically means that the air that is going to go into the motor will be very cool. Cooler are is more dense than warmer air..Therfore you get more oxygen into the engine. More oxygen means more power!!

[ModoMini]

Oooppss. Guess I should have put that in there.
Basically the colder the air going into your engine the more performance your able to pull out of it. Easy way to explain is when you are experiencing colder weather in your hometown you may notice once your car is warmed up, it seems to perform much better. Responding quicker and seeming to have more horsepower. The reality is that it (is) responding quicker and you (do) have more horsepower.
This is why for the Cooper S folks there is an intercooler mounted on the top of the engine with a direct air feed. It's job is to help cool the air going into your engine and help provide increased horspower. This little device should assist in that cooling considerably!
I have emailed the manufacturer and hope to hear their pricing soon. I'll post here as soon as I know.

[Chalky]

Does this mean higher fuel consumption - ie. hot engine more economic?

[mike58]

Does any one know how much more power an engine produces (%) when the air is say -5*C as compared to 20*C.
I know my friend's Porsche 944 Turbo goes quicker in cold damp air but someone has got to have the figures on this phenomenon.
Mike

[ModoMini]

Actually fuel consumption should decrease since you are not working as hard to operate the engine.

[Loud_TIGER]

will u need to replace the bottle?

[ModoMini]

I would imagine so after so many uses. Not something you would use all the time, just when you wanted an extra boost.

[Chalky]

In reply to Modo:-

Possibly you are correct, although it does seem to go against the grain. Mind you, I always thought that a hot engine burnt twice as much gas - not sure that I don't still think that !!!!!!!!!!!!!! Should I be reading more?
No, just keep to this site!

[ModoMini]

I think I may have misunderstood. Went back and reread your question.
A hot engine does burn more fuel since air and fuel do not mix as well. Hence, more fuel enters the combustion chamber than oxygen and it burns less effeciently. The idea here is to cool the air and make it denser so that more air may enter the combustion chamber. This lets you use less fuel to achieve the same combustion.
The reason I mentioned letting the engine warm up earlier is because a cold engine tends to run a little rough until it reaches operating temperature since oil does not circulate well when cold.

[Keith]

Quote:

Originally posted by mike58
Does any one know how much more power an engine produces (%) when the air is say -5*C as compared to 20*C.
I know my friend's Porsche 944 Turbo goes quicker in cold damp air but someone has got to have the figures on this phenomenon.
Mike

I posted a guess at just this question for a Cooper S in another thread. Here is what I came up with...

I have been trying to decide whether the temperature of the intake air is important. This is my go at making a guess based on some theory. I wanted to see how a 10 degree difference in intake temperature compares with an extra 1 psi boost.

Everything else being equal, air density is inversely proportional to temperature measured in Kelvin. Air at 70 degrees F = 21 degrees C = 294 degrees K. A 10 degree F change is about 5.5 degrees K. So a 10 degree change is a 1.9 percent change in density.

A supercharger delivering an 11psi boost gives a total pressure of about 26psi when atmospheric pressure is added back in. An extra 1 psi boost is a change in density of 3.8 percent.

This suggests, for what its worth, that every 10 degrees you reduce the intake temperature at atmospheric pressure, gives the same benefit as an extra 0.5 psi boost from the supercharger.

[Grinder]

heh...i find it kind of amusing...ModoMINI posted this same thing on an M5 message board similar MINI2.com's and everyone just sort of accepted it, but here everyone analyzes it to the finest detail.

Oh and i'm just assuming ModoMINI that you're MarkM5Lauderdale....

[PigLick]

Check out this site:

http://wahiduddin.net/calc/calc_hp_abs.htm

It's for planes, but I'd assume it should work equally as well for cars. According to the claims of 35% reduction in air temp on the manufactureres web site, this gives about a 2-3% increase in HP, with the HP gain going down as ambient temp does the same. Not a whole lot of gain, especially for people who live in the colder climes, but I guess it all depends on how much it costs, and how desperate you are for HP

[ModoMini]

Grinder - Yes I posted over there as well. I was the number two Dinan M5 on the board. still have the license plate in fact. Always looking for more speed as it were.
So I like to keep friends informed when I find something new that I think has good possibilities. This is definitely one of them.

[macncheese]

It may decrease the intake temperature but its a obstruction in your airflow no matter how "aerodynamic" the bulb is. You're better off using it as an intercooler sprayer.


--
Cheese

[ModoMini]

Mounted in the intake box, it would not create an obstruction. Just another thought for mounting location. Would have to see if it still provided a similar amount of cooling though.

[Keith]

Quote:

Originally posted by PigLick
Check out this site:

http://wahiduddin.net/calc/calc_hp_abs.htm

It's for planes, but I'd assume it should work equally as well for cars. According to the claims of 35% reduction in air temp on the manufactureres web site, this gives about a 2-3% increase in HP, with the HP gain going down as ambient temp does the same. Not a whole lot of gain, especially for people who live in the colder climes, but I guess it all depends on how much it costs, and how desperate you are for HP

That site matches my estimate of a 10 degree change giving a 1.9% boost pretty well.

I am not sure why anyone would talk about a 35% reduction in temperature. This makes it sound like a drop from 60 degrees to 40 degrees is the same as a drop from 90 to 60. Temperatures run relative to absolute zero so the real percentage drops are much smaller and almost the same in both these cases.

[PigLick]

Yah, I thought that was a strange way to report it too, I've never heard/seen anyone report anything in terms of % temp drop. I have a feeling it either has something to do with "hiding" actual numbers, or ignorance of whoever created that description. Either way it doesn't seem like too good a sign for their product. Like I said, I guess it depends on the price and your individual tastes, but this one just doesn't seem like a very good deal to me, especially considering this fishiniess and other concerns, such as the flow obstruction one above.

PigLick