co2 intercooler sprayer

[INtercoolerTech]

Does anyone use co2 intercooler sprayers? co2 sprayers are safe and can add easy HP. What are your thoughts on them?

Chris R

 

[gnx7]

Chris- why would you use CO2 vs. NOS to spray the intercooler..... NOS would work much better I would think.

-GNX7

 

[INtercoolerTech]

Actually, co2 is better for several reasons. One its cheap it cost about 5.00 to fill a 10lb bottle Vs whatever n20 cost in your area. TWO some people don’t want to use nitrous in their car. There is no reason to make a nitrous intercooler sprayer if you are not actually injecting nitrous! Co2 is colder than n20. You can’t spray the intercooler and inject nitrous at the same time.


Chris R

 

[INtercoolerTech]

did you guys see the new turbo magazine with the GN and the intercooler sprayer?

 

[Boston GN]

Nope...tell us about it.
Sounds interesting to say the least

 

[INtercoolerTech]

using a intercooler sprayer on the dyno the car went from 215 to 240 HP at the wheels from the intercooler sprayer and gained 32.1 lb-ft torque! pretty nice!

 

[jshilli1]

I saw that-

That article seemed a little underrated on the HP- maybe they were low balling it so their bolt-ons add a huge HP number. Did you see the dyno run on the WRX showing 900 lb-ft of torque? I think the dyno they used didn't correct something (perhaps an all wheel drive issue).


Wouldn't you be better off going with a larger or more efficient intercooler? In the test they ran, the car wasn't even moving. I would think "at speed" the CO2 would be a small volume compared to air rushing through the scoop; in a situation other than a single pass down the 1/4", radiant heat from the engine and other under hood components would also reduce the effect of the CO2. The only benefit I can think of- it would be great to "recover" your intercooler with a quick blast after a pass.

 

[INtercoolerTech]

Wouldn't you be better off going with a larger or more efficient intercooler? In the test they ran, the car wasn't even moving. I would think "at speed" the CO2 would be a small volume compared to air rushing through the scoop; in a situation other than a single pass down the 1/4", radiant heat from the engine and other under hood components would also reduce the effect of the CO2. The only benefit I can think of- it would be great to "recover" your intercooler with a quick blast after a pass.

Yes a bigger intercooler will always make life better, but even with a bigger intercooler you will still see very nice gains with a sprayer. Buddy has a supra using a very big intercooler and still mabe an exta 61 Hp and 42 ft lbs with a sprayer

here is a link to his dyno pull


DYNO RUN!!!!!!!!!!!!!!

 

[Two Lane]

HTH

www.designengineering.com

 

[gnx7]

Chris- I assume you represent a company that sells these C02 sprayers?

What temp is NOS and what temp is CO2? I have a difficult time believing that CO2 is colder as I have a 25lb bottle here for pushing kegs of beer and it isn't that cold.

Please answer the NOS vs. CO2 temp question if you can.

-GNX7

 

[INtercoolerTech]

co2 At a temperature of -110 F degrees is colder than n20 at a temperature -60 F They are both really cold and work well but remember the price diffrence of co2 & n20

Yes I do represent a company I just wanted to test the waters and see if any GN people where using sprayers?

When you use your 25lb co2 tank for kegs, you are not actually releasing the liquid part of the co2! If you where able to flip the tank upside down or even on its side ( please don’t try it just giving you an idea) the liquid co2 would then be sprayed out! The liquid co2 turns into dry ice about 2 SEC’s after it hits the air!

Chris R

 

[INtercoolerTech]

Re: HTH

Originally posted by Two Lane
www.designengineering.com

Check out their prices

 

[xrunner123]

If you assume that both bottles are charged to the gasses vapor pressure (point at which it is a liquid), then the colder one when release to the atmosphere will be the one that has a lower boiling point.

CO2 is -78C
NOS is -88C

Still pretty close.



Molecular formula: CO2
CAS No: 124-38-9
EINECS No: 204-696-9
Physical data
Appearance: colourless odourless gas
Melting point:
Boiling point: -78 C (sublimes)
Vapour density: 1.53 (air = 1)
Vapour pressure:
Density (g cm-3): 1.101 at -37 C
Critical temperature: 31.6 C
Critical pressure: 73.8 atm.
Flash point: none
Explosion limits: none
Autoignition temperature: none
Water solubility: slight



NOS
Physical Data
Boiling point: -127.3ºF (-88.5ºC)
Freezing point: -131.5ºF (-90.8ºC)
% Volatile / Volume: 100
Vapor Density: (air=1) 1.53 at 20ºC
Specific Gravity: 1.226 at -89ºC
Solubility with H2O: slight
Vapor Pressure: 745 psig
Evaporation Rate: high
Appearance: colorless gas
Odor: sweet odor
Taste: sweet taste

 

[INtercoolerTech]

Very cool Ifno

 

[colby]

Hey , I've been wanting to try this also because I happen to have both aforementioned cars 86 GN and 94 SupraTT, both of which have BIG frontmounts. But I was curious,at any point woudn't the fins or bars on the core become brittle (after time) causing some sort of failure? Am I just worrying too much?

 

[Two Lane]

INTRIGUING QUESTION

Every metal has a finite number of "stress-cycles" (and a multitude of potential stressors), and its eventual response/longevity/tolerance could be determined by scientific testing.

A metallurgical engineer hopefully will post a learned response.
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Think about how many cold/hot cycles and temperature variances a radiator goes through...amazing lifespan for most of them.

 

[INtercoolerTech]

I have had a intercooler on my car for a long time no sign at all, of any stress.

Chris R

 

[xrunner123]

Re: INTRIGUING QUESTION

Originally posted by Two Lane

Think about how many cold/hot cycles and temperature variances a radiator goes through...amazing lifespan for most of them.

Yes, but there is a BIG difference between temperature cycling, which is our radiator, motor, etc, and temperature shock. The delta temp/delta time is very important. The faster you heat and cool the more stressfull. Ever drop a hot bulb in water?

I would think that the effects of temp shock would show up on the solder/weld joints first in an intercooler that was 'blasted' with a substance that was-70C or so.

 

[xrunner123]

Oh and also, this was probably covered somewhere here before, it is better to use liquid to fin conduction than air to fin. Meaning that the intercooler would 'cool' better if submerged in a liquid that was cold than to just blast cold air in a few spots. Liquid by far conducts heat better than gas.

Some sort of glycerin that was cooled to -80C with the CO2 or NOS? Then you don't have to worry about thermal shock since the mass of the liquid would be quite large.

 

[Two Lane]

DESIGN ENGINEERING

Since winning the 2002 SEMA award for Best New Racing/Performance Product, Design Engineering has sold more than a few.

Hopefully, they conducted tests on their product's effects on Intercooler durability before releasing their product.

Even if not, there's a lot of real world testing going on regarding using CO2 to cool the Intercooler air, by the guys using them while we speculate.
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Their system can cool the air and/or fuel at 3 separate points on its path, including the Intercooler.

The CO2 Intercooler sprayer portion of the system is very similar to the NOS Intercooler sprayer, which has been used for years.

Has anyone heard of ANY Intercooler failures due to spraying them with CO2 or NOS?
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Very interesting topic, for sure.