I learned a long time ago, if you spray the condenser of an air conditioning unit with water, the compressor doesn't have to work as hard and it can actually cool better with less energy.

The STi and some of the EVOs came with an I/C spray from the factory. What I'm curious of is, can this really improve the temp of the intake charge enough to make a difference?

I've also seen a product that DEI advertises called Cryo. It looks like a similar thing, but using a compressed gas instead of water. I don't like the idea of spraying any compressed gas on a hot piece of metal. Has anyone tried thus with good results?

I would like to see pics of some homebuilt I/C sprays and what kind of temp difference you see in the intake charge.

One last thing, isopropyl alcohol is the least flammable of the alcohols. Can this be used in a liquid I/C spray? is it better pure? and if it really makes a difference over straight water?

Thanks guys!

Sent from my ADR6300 using Tapatalk

Um...water/meth injection has been used by thousands of people for years. Not a new concept.

Oh, and yes it works...quite well.

1990AWD said:

Um...water/meth injection has been used by thousands of people for years. Not a new concept.

Oh, and yes it works...quite well.

Click to expand...

I'm not talking about injecting it into the intake air, I'm talking about spraying it on the outside of the intercooler.

Sent from my ADR6300 using Tapatalk

1990AWD said:

Um...water/meth injection has been used by thousands of people for years. Not a new concept.

Oh, and yes it works...quite well.

Click to expand...

He's not talking about water/meth injection, he's talking about intercooler sprayers. I don't know how you ended up with that response.

In Cryo, it's just CO2, which is non-flammable, same thing used in paintball and much cheaper than spraying nitrous oxide on the intercooler. The nitrous oxide will not combust either, spontaneously, it needs to be compressed at high temperatures/pressures to force the molecules to separate to actually work.

KazooGS-T said:

In Cryo, it's just CO2, which is non-flammable, same thing used in paintball and much cheaper than spraying nitrous oxide on the intercooler.

Click to expand...

That's what I thought. My only worry with something like that is the massive temp difference. You figure the I/C is heatsoaked when you hit the spray. On a hot day couldn't that cause a serious issue, like cracking the I/C?

Sent from my ADR6300 using Tapatalk

Blue Talon Boy said:

That's what I thought. My only worry with something like that is the massive temp difference. You figure the I/C is heatsoaked when you hit the spray. On a hot day couldn't that cause a serious issue, like cracking the I/C?

Sent from my ADR6300 using Tapatalk

Click to expand...

Theoretically, it could. However, the difference in temperatures will never get that drastic to crack aluminum. If it went from say 400+ degrees and instantly froze over, on an elbow or outlet piece it would. You are going to spray the actual core itself though, which will almost instantly transfer the heat, which will only cool the core down

This became a popular thing to do for a while but kinda died out with meth injection. Meth is a lot more efficient and a better bang for your buck.

i have been thinking of a setup to spray the intercooler with a very fine mist of purified water. i would wager it will drop the intake air temp quite a bit. true, not as much as injecting methanol into the actual intake air but still, a considerable amount. it would be cheap and easy to do as well. when the machinist decides to give me back my damn engine i will eventually do this and write up a thread. ive got alot of other mods coming first tho......

I have a Setup in the makes, where i divert water/meth to spray on my SMIC because the cooling properties of meth are amazing, i would like to use a high meth mixture but think i will settle with spraying 50/50!
It shall cool the i/c core pretty well during hard driving, but not better than meth injection, i'm just not ready to inject it!

My buddy with a Specv turbo got about 25-30whp from a 100shot pill on his IC fogger. I'm planning on running one sometime, whenever I find a cheap used kit locally.

IMO it's a waste and as blktalon3 said, it's better to go with water/meth injection if you are looking for some better cooling both air and combustion chamber. While spraying the IC works, I would stick with either a fine water mist or compressed air. Why spend money on some other form of gas when any compressed gas quickly exiting a small hole will become cold.

If you are going to buy nitrous, spray it into the engine and not to the atmosphere.

LiQUiDx said:

IMO it's a waste and as blktalon3 said, it's better to go with water/meth injection if you are looking for some better cooling both air and combustion chamber. While spraying the IC works, I would stick with either a fine water mist or compressed air. Why spend money on some other form of gas when any compressed gas quickly exiting a small hole will become cold.

If you are going to buy nitrous, spray it into the engine and not to the atmosphere.

Click to expand...

I wasn't planning on nitrous. Not yet anyway.

I agree that a compressed gas leaving out a small hole gets EXTREMELY cold. I'm not ready to move to an injection kit yet. Just thinking out loud. Dad and I were talking, it got me thinking. I know the spray on the intercooler would help when it becomes heatsoaked, like after a pull at the dragstrip. I've read up on injection kits and I like the idea, just not ready to approach it yet. Ambient temp last night was about 75* and the intake charge was at 83*. That was after running it hard enough I would have thought I would have seen heatsoak of the intercooler. I know a 100% efficient intercooler can lower the intake charge back to ambient. I'm wondering if with an intercooler that is as efficient as this one seems to be if an I/C spray might be able to get me to 100% efficiency? With an alcohol, isopropyl, like I referenced in post 1.

Sent from my ADR6300 using Tapatalk

Methanol as the best cooling properties out of Isoproply, Isopropanol, Acetone, Acetonitrile, even Ethyl alcohol(Ethanol)!! Just FYI

And I believe most windshield wiper fluids contain Methanol, but even if, you can usually find methanol at supply stores like home depot, in or near the paint isles! From what I remember its around $6/gal! Mix that with a gallon of water you have 2 gallons of mix to spray you intercooler when doing hard pulls! Its not like you will be using it ALL the time so I would be sure it will be cheap to maintain! And the plans I have writen up to make a I/C spray will be cheap to make too!

Im using the stock SMIC, with a 14b boosting around 18psi, so my SMIC gets pretty hot! I want to stick with a SMIC so im trying to find better ways to make it more efficient! And for now the i/c sprayer is the cheapest easiest way (IMO) to do so without getting a meth injection kit and worrying about blowing my motor if the pump in the kit fails or I run out of mix!

skatershawn said:

Methanol as the best cooling properties out of Isoproply, Isopropanol, Acetone, Acetonitrile, even Ethyl alcohol(Ethanol)!! Just FYI

And I believe most windshield wiper fluids contain Methanol, but even if, you can usually find methanol at supply stores like home depot, in or near the paint isles! From what I remember its around $6/gal! Mix that with a gallon of water you have 2 gallons of mix to spray you intercooler when doing hard pulls! Its not like you will be using it ALL the time so I would be sure it will be cheap to maintain! And the plans I have writen up to make a I/C spray will be cheap to make too!

Im using the stock SMIC, with a 14b boosting around 18psi, so my SMIC gets pretty hot! I want to stick with a SMIC so im trying to find better ways to make it more efficient! And for now the i/c sprayer is the cheapest easiest way (IMO) to do so without getting a meth injection kit and worrying about blowing my motor if the pump in the kit fails or I run out of mix!

Click to expand...

Thanks for the reply. This is the kind of input I was looking for. I have FMIC running about 22psi on a 20g. I feel the same as you about the injection of water/meth. Can you post a link to your write up on the spray?

Sent from my ADR6300 using Tapatalk

It would a far better investment to inject that methanol into the inducted air stream than attempt to improve efficiency of the OEM sidemount by spraying a high CP fluid on it. If you're going to do that, go air to water with your intercooler setup.

Boosted98gsx said:

It would a far better investment to inject that methanol into the inducted air stream than attempt to improve efficiency of the OEM sidemount by spraying a high CP fluid on it. If you're going to do that, go air to water with your intercooler setup.

Click to expand...

I am aware that that would be the BEST use of the methanol. I'm not looking for the BEST way. I had an idea and was getting opinions on it.

What I don't know about meth injection is, do you have to tune around it? I would think that if you are putting a flammable substance in the engine, such as meth, you would have to lean out the fuel feed. Except that you aren't looking to substitute the fuel, you are looking to supplement it.

So back to I/C spray, on the outside of the intercooler. I don't want to hear how much better the water/meth injection is. That has been beaten to death.

Sent from my ADR6300 using Tapatalk

Blue Talon Boy said:

I am aware that that would be the BEST use of the methanol. I'm not looking for the BEST way. I had an idea and was getting opinions on it.

What I don't know about meth injection is, do you have to tune around it? I would think that if you are putting a flammable substance in the engine, such as meth, you would have to lean out the fuel feed. Except that you aren't looking to substitute the fuel, you are looking to supplement it.

So back to I/C spray, on the outside of the intercooler. I don't want to hear how much better the water/meth injection is. That has been beaten to death.

Sent from my ADR6300 using Tapatalk

Click to expand...

Of course you do. Colder intake charge (that isn't metered), and injecting more fuel into your airstream.

Boosted98gsx said:

Of course you do. Colder intake charge (that isn't metered), and injecting more fuel into your airstream.

Click to expand...

Thats what I was thinkin. I kinda answered it myself in my post. Lol. Thanks!

Sent from my ADR6300 using Tapatalk

If you do decide to go with a sprayer, save your money and make one yourself. You'll just need a pump, some hoses and fittings, switch, wiring, fuse, tubing for the sprayer (steal it from an old refrigerator), and a tank. Shouldn't cost you all that much depending on what kind of pump you choose to run and what you decide to spray (liquid or gas)

Blue Talon Boy said:

Thanks for the reply. This is the kind of input I was looking for. I have FMIC running about 22psi on a 20g. I feel the same as you about the injection of water/meth. Can you post a link to your write up on the spray?

Sent from my ADR6300 using Tapatalk

Click to expand...

No problem, just stating whats up!
I Currently havent made it into a write up as im working out other things with my car, i have my plans all written in a book like a blue print of it!

When I do take the project forward I will be absolutely sure to make a write up on it! As it is in my mind, i think it will do well!

Boosted98gsx said:

It would a far better investment to inject that methanol into the inducted air stream than attempt to improve efficiency of the OEM sidemount by spraying a high CP fluid on it. If you're going to do that, go air to water with your intercooler setup.

Click to expand...

I really do understand you point of view, but for those that don't want to run meth injection and dont want to bother with getting a water to air core and plumbing for it, why is getting a i/c sprayer setup wrong?
The plans i have to making one should cost me maybe $50 and i fill will work perfect for my goals!
I actually have to plans to run meth in the future, I am working my way to run e85!
But for NOW, for the time being, I want a cheap, easy way to help reduce heat soaking on my stock SMIC!

If you don't use your wiper nozzles, you could get longer lines and mount them at the condenser or FMIC.

To the OP:

The idea isn't bad, but it's not worth it.. I speak a little from experience.. I made one myself. It wasn't the best out there, but worked.

Here is the thread I made about it:
http://www.dsmtuners.com/forums/new...prayer-have-question-about-wipers-thanks.html

Regardless how you are going to make it, is not going to be efficient to cool well. It does cool the FMIC, but only the front of it.. It isn't going to be cold enough to transfer the cooling to the back side of IC, period...

Nothing is going to beat properly sized and efficient core FMIC..

It might work only on stock SMIC and some shitty thin cores, but nothing else.
The sparayer also is more efficient at low speeds/RPM's/where you actually don't need it.. As soon you hit decent boost it does nothing to lower intake temps. I was running wiper fluid.

At that time the car was equipped with AEM EMS/speed/density and I could monitor the intake temp very accurate/sensor was 3-4" away from TB.... The only problem is my hard drive kind of died, so I don't have any more logs to show..

If you want to lower the temps , nothing beats meth kit, you don't wanna do that there are few other ways:

- Making efficient cold air intake/CAI, I made thread about ti, HERE:
http://www.dsmtuners.com/forums/bol...reduce-ait-log-info-inside-cai-installed.html

-install ducting and seal around the FMIC
-properly insulated hot parts like: turbine housing; DP; Manifold; radiator shrouds..

GL with your goals......