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Was bored today, so I built a CO2 intercooler sprayer...

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Old 08-16-04, 10:06 AM
  #76  
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here is an idea...

how about you get 20 hookers to huddle around your open element intake and tell them all to BLOW at the same time.

what little bit of CO2 gets in your car from an injection kit will not cause it to POP. JUST IN CASE, don't spray it directly into the filters.

the hooker thing would be pretty cool to watch though!!!
Old 08-16-04, 10:58 AM
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Originally Posted by Fatman0203
I think you mean C02, the air that goes through the IC is exactly if it were going through the radiator, its just for cooling purpose and never sees the combustion chamber of your motor compared to your intakes which want as much air, as cold as possible to get more power and even less chance of pre-detonation. Thats why spraying the IC helps drop temps, no one has been able to measure this, and I plan to do it soon once I get my little digital guages working.
So the IC is merely an extremely efficient radiator, more or less? hehe. I didn't know that. I see now why CO2 displacing O2 in the IC isn't an issue, cuz you don't care what goes through, as long as it's cold. Yet for the intake, since that air goes directly toward combustion, you gotta make sure you maximize the amount of O2 molecules you have (and of course the corresponding amount of fuel to go w/ it). But so tell me this...if the IC is only for cooling, how does having a bigger and better IC result in more hp? Or is it indirectly (by allowing your engine to run at optimal temps, since it's being cooled better)?

Also, am I correct in saying that WI into the intake displaces very little O2, yet allows for a lot of heat transfer, thereby dropping the temp and hence the pressure, resulting in a greater volume of O2 particles reaching the combustion chamber? I would imagine if this is the case, the volume increase related to the temp drop is considerably greater than the volume of O2 displaced by the water itself, to make this system effective?
Old 08-16-04, 12:00 PM
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Originally Posted by RXtacy
Exactly, however i didn't mean that the C02 caused detonation. What I meant was that the lower intake charge might lean out you air fuel ratio to a point where detonation could be an issue. Ramy it is very difficult to ensure that the C02 doesn't get sucked inot you intake without some serious ducting and shielding.
If you lower the O2 content, you would end up running rich, not lean. There'd be too much fuel and not enough O2 to get a good burn.
Old 08-16-04, 12:17 PM
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Ok I'm not saying what i mean yes when you displace the air you will have a richer fuel mixture, however what i was try to say was that when the intake charge temperature is dropped considerably by say a c02 spray this will make the air denser therefore leaning out your air fuel mixture. So if you have the c02 spray isolated so it doesn't get sprayed into the intake and it is significantly droping your intake temps this could creat a lean situation, which i would imagine would be difficult to tune for because it's only a short burst from time to time.
Old 08-16-04, 12:30 PM
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Originally Posted by FDNewbie
So the IC is merely an extremely efficient radiator, more or less? hehe. I didn't know that. I see now why CO2 displacing O2 in the IC isn't an issue, cuz you don't care what goes through, as long as it's cold. Yet for the intake, since that air goes directly toward combustion, you gotta make sure you maximize the amount of O2 molecules you have (and of course the corresponding amount of fuel to go w/ it). But so tell me this...if the IC is only for cooling, how does having a bigger and better IC result in more hp? Or is it indirectly (by allowing your engine to run at optimal temps, since it's being cooled better)?
More surface area = more cooling and/or lower temps. Its not a more efficient radiator its just a radiator made to cool air.
Go to www.howstuffworks.com and type in intercooler., turbo, rotary, intake system. Learn how they all work its interesting.

Originally Posted by FDNewbie
Also, am I correct in saying that WI into the intake displaces very little O2, yet allows for a lot of heat transfer, thereby dropping the temp and hence the pressure, resulting in a greater volume of O2 particles reaching the combustion chamber? I would imagine if this is the case, the volume increase related to the temp drop is considerably greater than the volume of O2 displaced by the water itself, to make this system effective?
Ya its sort of like that. water injection doesnt directly give you horsepower. It gives you a safe zone to tune your car for more horpsepower by giving less chance of pre-detonation, because it cools your intake charge more than the IC.
Old 08-16-04, 01:06 PM
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I see what you're saying rxtacy, but then the air temp sensor will come into play anyway and should offset the condition. It will see a cooler charge and adjust accordingly.

Edit.

Then again, it probably can't read that quick enough, so guess that's a moot point.

Last edited by Railgun69; 08-16-04 at 01:09 PM.
Old 08-16-04, 01:40 PM
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Originally Posted by Railgun69
I see what you're saying rxtacy, but then the air temp sensor will come into play anyway and should offset the condition. It will see a cooler charge and adjust accordingly.

Edit.

Then again, it probably can't read that quick enough, so guess that's a moot point.
It cant , but no one knows truely how much difference it does I doubt its enough to cause detonation cause of denser air. I plan to test it on a stock IC soon.
Old 09-01-04, 07:51 PM
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any freakin updates yet!?!?
Old 10-21-04, 01:31 AM
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so could a 10LB NITROUS bottle be used for this (filled with Co2) i cant see getting verry far on a 20oz bottle.

and the tank pin valve are you talking about the caps or the valves them selves?
Old 10-21-04, 09:52 AM
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so im a newb... but will the plastic pieces on the stock intercooler like such constant and drastic heat changes?
Old 10-21-04, 10:05 AM
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Originally Posted by TurboLumpy
so im a newb... but will the plastic pieces on the stock intercooler like such constant and drastic heat changes?
Prob not...that's why you gotta chuck that POS and get a REAL IC
Old 10-21-04, 06:01 PM
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Originally Posted by pianoprodigy
This tubing goes in front of the intercooler, right? If so, it ruins the look of the beautiful intercooler! Couldn't something be fabricated that would run only along the top of the opening in the bumper so that it would not be seen unless someone is crouched down looking for it? I guess then that maybe the sprayer doesn't spray hard enough; therefore, not enough of the intercooler would be affected thus defeating the purpose. Am I on track?
Stock intercooler IDIOT. You know I love you george.
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