4g63tc said:

Now i'm totally confused.

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Cool... my work here is done.

I just figured it would work better as part of the cooling system, rather than the IC system, since water transfers heat better than air.

We used to own a 1984 VW Vanagon way back in the day, they used similar finned piping to help cool the engine, since it had to travel from the front to the rear of the van. Damn thing never overheated.

I actually thought about something like this a few weeks ago .

The fins on that pipe the op posted are way too thick to be effective imo. Radiator/intercooler style fins would dissipate the heat much more effectively.

I dont see how it could possibly ever heat soak from engine bay temps when the air running through it is much hotter. That just doesnt make any sense. If the fins were incredibly effective, it would still cool it to near engine bay temps. The same as an intercooler under ideal conditions in motion can cool close to ambient.

I think the idea "could" work if built properly.

You're right, radiator style fins that are much thinner will get much more surface area to dissipate heat, but they're also very fragile. When you grab it to install it, the fins will all collapse.

But! ...in order for those fins to dissipate heat, the pipe must first absorb the heat. There are no fins inside the pipe. There's nothing to increase surface area to absorb heat, and nothing to slow down the air so it spends more time to transfer heat. What good are the fins outside the pipe if there are no means to absorb heat? You aren't really dissipating much of anything. Once you put fins inside, you've basically made an intercooler, packaged in a much less efficient manner. Think about it.

This thing is kind of like a retarded love-child between an intercooler and intercooler piping. It's too bulky to be intercooler pipe, and it doesn't serve any purpose as an intercooler. Save the money to buy some condoms or soemthing next time..

talonDSMerr said:

You're right, radiator style fins that are much thinner will get much more surface area to dissipate heat, but they're also very fragile. When you grab it to install it, the fins will all collapse.

But! ...in order for those fins to dissipate heat, the pipe must first absorb the heat. There are no fins inside the pipe. There's nothing to increase surface area to absorb heat, and nothing to slow down the air so it spends more time to transfer heat. What good are the fins outside the pipe if there are no means to absorb heat? You aren't really dissipating much of anything. Once you put fins inside, you've basically made an intercooler, packaged in a much less efficient manner. Think about it.

This thing is kind of like a retarded love-child between an intercooler and intercooler piping. It's too bulky to be intercooler pipe, and it doesn't serve any purpose as an intercooler. Save the money to buy some condoms or soemthing next time..

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There are no fins inside the exhaust pipe, and that ####er gets pretty warm...

I see your point though. But the way its built currently i dont see it doing much of anything.

This guy "tested" one and showed an improvement of 28 degrees though.

About 3 posts down on the second page:
Shoptalkforums.com • View topic - "Pre-intercooler" revisited


Also, when i said "I think the idea "could" work if built properly. " I only meant then it could possibly lower temps, even just 1 degree, would mean its working correct?

So if I increase the amount of fins on my car I won't need air conditioning. I like where this is going.

infinite_kaos said:

So if I increase the amount of fins on my car I won't need air conditioning. I like where this is going.

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Maybe thats why the honduh kids do it

infinite_kaos said:

So if I increase the amount of fins on my car I won't need air conditioning. I like where this is going.

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Yeah but the amount of fins required would be counter productive because of drag.

That is unless you use my patented magnetic fin setup, the magnetic core provides a positive air displacement charge allowing you to cut through the air.

And this whole time we thought they were stupid rivers. HOW DARE US!!!!!

I don't think it would do much good at all. I have seen something similar on cogeneration engines but the fins stick inward in the exhaust path to collect heat and the outside is surrounded by a sealed pipe with antifreeze as a transfer medium. (HM like a water to air intercooler) The thing is those just sit and run just above idle. The gas flow is slow enough to absorb into the fins. Anyone know the air speed coming out of our turbos? Maybe at 3-4k rpm's? It may help a degree or two but it very well may get heat soak and make temps worse. Anyone know of someone that has bought one and actually tested it?

91stocker said:

There are no fins inside the exhaust pipe, and that ####er gets pretty warm...

I see your point though. But the way its built currently i dont see it doing much of anything.

This guy "tested" one and showed an improvement of 28 degrees though.

About 3 posts down on the second page:
Shoptalkforums.com • View topic - "Pre-intercooler" revisited


Also, when i said "I think the idea "could" work if built properly. " I only meant then it could possibly lower temps, even just 1 degree, would mean its working correct?

Click to expand...

Well, I might have exaggerated when I said there is no heat transfer from having no fins inside. There is, but by far not enough. You brought up the exhaust pipes getting hot, and yes, this is from the hot exhaust gasses passing inside. But this is the cumulative effort of A LOT of exhaust flow. Just a tiny fraction of the heat from an exhaust pulse transfers into the pipe. As you flow more and more exhaust the longer and harder you drive, the combined heat going into the pipe becomes greater than the rate at which the pipe can dissipate the heat to ambient air. Thus, the exhaust pipe gets pretty hot. But think of this: When you first start your car after it had been sitting overnight, it takes a good amount of waiting for the exhaust manifold/pipes to get hot. This is with 1200F exhaust flowing through it. The reason the exhaust pipe doesn't get hot instantly is the reason that this "pre-intercooler cooling pipe" will not work. The air passing will lose just a tiny fraction of its heat energy, not nearly enough to make a difference.

I understand what you mean saying that it would be "working" by lowering 1 degree, or even 0.1 degrees. But when you mod a car, you have to take into account what is worth doing. This is essentially a heat exchanger, but double the space required for it and you can have a small sidemount intercooler instead, which is much more efficient at doing its job. That being said, this item has little appeal or use for us, and the application it was meant for, but it was a good try.

LiQUiDx said:

You do realize that the pipe is designed the same way an intercooler/radiator is right? Temperature from the air absorbs into the pipe and the fins dissipate it. Same way the intercooler works. It's only to help lower it a little, it doesn't say to not run an intercooler at all.

Hell, this pipe would be perfect for those that don't run intercoolers at all and just make yiur whole intake track post turbo out of this. Slightly cools the charge and no pressure drop associated with ICs.

I honestly don't think it would work too well unless as stated already there is constant airflow passing over it to cool it off. Every little bit helps though

Click to expand...

Without any fins on the interior of that pipe, it is virtually useless to the mass amounts of air we flow. You MIGHT see a 10*F heat drop for the 1mm radius next to the pipe, but for the rest of the air, more than likely nothing. Air does not conduct heat well enough for this to be of any value to us.

Use an intercooler.

I think people are getting way too in depth with this. This is obviously not an intercooler replacement. If you think it might be-just go do some research first, it's not. The fact is that this will have an effect on the heat-The question is how big? Will it be near nothing? Will it be significant? Will it heat soak and make things worse? Nobody here has given the results of a real life test. That's all I really care about....and no, I'm not plunking down my $ to be the first one.

The big problem I see with his test is the airflow.

Heat guns flow ~20 CFM tops. Most flow a good bit less.
Even the stock T-25 will flow >250CFM.

So he tested it with <10% of the airflow you'd see.

Impressed with that 28&#176; drop any more?

^ I seriously hope no one was ever impressed.

Because racecar.

My original question was do they work and has any one tried them yea all the high tech principle and theory talk is cool but it doesn't prove a thing theory is not fact it is just an idea when its all said and done. I think I could work you think it can't but neither of us has any actual proof to say one way or the other! Because in theory we shouldn't be able to do half of the shit that we do or has been done. And don't be the dick head that says, "well why don't you buy it and let us know." First off I don't buy anything for my car without extensive research and I use your guys insight and knowledge as a good shopping tool. So if you dont know 100% that it's not going to work in the real world, I don't want to hear your theory. Secondly as my only means of transportation and being a broke college student I dont have the time or money to use my car as a science experiment. So if anyone has facts they can back up or actual useable experience with this product I'd like to hear them.

2gmummy said:

all the high tech principle and theory talk is cool but it doesn't prove a thing theory is not fact it is just an idea when its all said and done.

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Wow

2gmummy said:

I think I could work you think it can't but neither of us has any actual proof to say one way or the other!

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But some of us have engineering backgrounds and years of experience with these kinds of products, so we can make educated predictions of what should happen under varying conditions.

But of course you're right... what the hell do we know.

You're a college student. You have access to a wealth of information to do the extensive research you need before deciding whether or not you want to buy this.

Borrow a book on heat transfer from the library. Read the chapters relating to conduction, convection, fins, and heat exchangers.

A lot of us have tried summing these up for you, but it seems to be falling on deaf ears.

Big thumbs up to the marketing guys over at siliconeintakes. They did a good job on this one

2gmummy said:

My original question was do they work and has any one tried them yea all the high tech principle and theory talk is cool but it doesn't prove a thing theory is not fact it is just an idea when its all said and done. I think I could work you think it can't but neither of us has any actual proof to say one way or the other! Because in theory we shouldn't be able to do half of the shit that we do or has been done. And don't be the dick head that says, "well why don't you buy it and let us know." First off I don't buy anything for my car without extensive research and I use your guys insight and knowledge as a good shopping tool. So if you don't know 100% that it's not going to work in the real world, I don't want to hear your theory. Secondly as my only means of transportation and being a broke college student I don't have the time or money to use my car as a science experiment. So if anyone has facts they can back up or actual usable experience with this product I'd like to hear them.

Click to expand...

Its cheap enough to just buy and test one if you have some serious interest in it. Its like what $30.

But as its built now i dont see it doing a damn thing but taking up room. The fins are much too thick.

With temps able to reach 300+ degrees pre-intercooler, im sure there's enough heat for a heat sink(which is what this is) to do alright. A tiny pc heat sink pulls a pretty large amount of heat out of internal parts such as the cpu,etc. They have hardly any surface area with sometimes no fans attached and only the small amount of airflow through the case to help cool.

Seems like the same idea of guys wrapping their intercooler pipes.

Or has anyone ever welded a radiator and seen how fast it cools? Or how fast it pulls heat across the exchanger? It is pretty amazing how efficient those style cores are.

The biggest mistake people are making in this thread is comparing how solid parts or liquids are cooled to how gases are cooled.

knochgoon24 said:

The big problem I see with his test is the airflow.

Heat guns flow ~20 CFM tops. Most flow a good bit less.
Even the stock T-25 will flow >250CFM.

So he tested it with <10% of the airflow you'd see.

Impressed with that 28° drop any more?

Click to expand...

Impressive point! This is the big factor about it working. The amount of flow and the amount of time the pipe thing has to absorb heat then shed it.

I would like to see the test performed on a straight and normal intercooler pipe of the same diameter and length. That may help prove something. I wonder if they would do the test at silicone intakes? It might turn out biased though.

Boostinsideways said:

Here is my new magnetized pre intercooler pipe. This patented system uses a magnetic heat exchanger to cool off the air that passes through pipe while At the same time giving the air volume passing through a postive charge which promotes more energetic combustion.

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Let me know when you get these on the market, magnets forsure!
I think 2gummy might have stock in the company because he seems to love this idea even though most of the people in the thread are saying it does nothing except maybe absorb more heat. Why wouldn't someone just get a bigger IC instead of this snakeoil product? You might as well run browns gas in your car if your gonna buy this POS, don't foget the turbonator gas saver as well.

I think most of the people here are missing the main point:
Pre IC pipe is in the hottest part of the engine compartment, sandwiched between radiator and DP..

Whatever you do there is no cooling or heat dissipating there at all!!!
There are on the market magnetic/or self adhesive/ fins and they work quite well on oil pans; trannys; diffs;etc.

There is only 2-3 things, that you could do to lower intake temps more:
-Cold air intake...http://www.dsmtuners.com/forums/bol...reduce-ait-log-info-inside-cai-installed.html
-wrap the DP
-make a heatshield for the turbo/ that lowered my coolant temps another 5*F/.......

And of course use the best cooling garret racing core, or ETS.. The rest is just BS... Period.

calan said:

Wow



But some of us have engineering backgrounds and years of experience with these kinds of products, so we can make educated predictions of what should happen under varying conditions.

But of course you're right... what the hell do we know.

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Definition of THEORY



1

: the analysis of a set of facts in their relation to one another


2

: abstract thought : speculation


3

: the general or abstract principles of a body of fact, a science, or an art <music theory>


4

a: a belief, policy, or procedure proposed or followed as the basis of action <her method is based on the theory that all children want to learn> b: an ideal or hypothetical set of facts, principles, or circumstances —often used in the phrase in theory <in theory, we have always advocated freedom for all>


5

: a plausible or scientifically acceptable general principle or body of principles offered to explain phenomena <the wave theory of light>


6

a: a hypothesis assumed for the sake of argument or investigation b: an unproved assumption : conjecture c: a body of theorems presenting a concise systematic view of a subject <theory of equations>


See theory defined for English-language learners »


See theory defined for kids »

Thats funny with your engineering background you still dont know what a theory is, I thought it was a understood thing, but of course you're right..what the hell does webster dictionary know

And yes I own stocks with silicointakes......next time you have something to say try to make it useful to the thread.

Has anyone ACTUALLY TRIED THIS PRODUCT? I understand what you guys are saying in theory it wont work, lots of good info about thermodynamics and im not trying to make this into another wasted agruement thread. Im not the kind of person that will believe something because thats what im told. I need cold hard facts and proof before i condem anything.

This is what ive gathered
-in theory it wont help enough to make it efficent BUT..
-no one on this forum has any experience with this product and can not say 100% either way on it working or not
-It was tried on another forum and gave some results proving the product, but wasnt "to scale" which proves it works but not its effetiveness

Boostinsideway- since you have your patient product i would like to see some facts on why your product is different and why it works so much better than this product. Please show me some data, logs, results or anything

Sorry calan for the smart remark but if you want to be a smart ass ill be one too. Hopefully thats behind us now and ive made myself more clear as in what im looking for.

bertrenolds no apologies for you. If you dont have anything contsructive to add or questions regarding the subject please keep your comments to yourself