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Dry Ice

Old Feb 3, 2004 | 05:23 PM
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Dry Ice

Please don't think i'm idoit for asking this but if you stuck a piece of dry ice under your stock air filter would you gain anything or just mess up your engine
Old Feb 3, 2004 | 05:27 PM
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dude .....what???????
Old Feb 3, 2004 | 05:29 PM
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well not under your airfilter, but I've seen people at the track but dry ice on top of their intake monifold. Tha helps it to cool off much quicker
Old Feb 3, 2004 | 05:40 PM
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interesting idea........ i bet the gases dont work very well for combustion?

somebody who is smarter answer this.....
Old Feb 3, 2004 | 05:44 PM
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Originally Posted by TylerBorg
interesting idea........ i bet the gases dont work very well for combustion?

somebody who is smarter answer this.....

simple colder more condense air means more power for your car.
Old Feb 3, 2004 | 06:00 PM
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Since dry ice is frozen C02, as it melts or undergoes sublimation (solid turning directly into a gas) it's going to produce carbon dioxide gas, which definitely will not help combustion. So don't put it by the intake.
Old Feb 3, 2004 | 06:01 PM
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Ive never seen anyone using dry ice on the manifold but I have seen regular ice. Dry ice isnt cheap.

Dry ice is frozen carbon dioxide, CO2, see those extra 2 O's.....hmmm. Nitrous is N2O only 1 O. But you can't ingest CO2 into your engine cause the Carbon is bad, it won't go anywhere just build up. N in nitrous is an inert gas meaning it is essentially harmless, and will pass through. But dry ice is a solid anyway so that train of thought is useless.

As far as cooling your intake stream with it by placing a hunk under the filter....sure why not.
Old Feb 3, 2004 | 06:12 PM
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I think that it would work, and add O2 as well as lowering the temperature....... but I really dont want to add all that carbon into my intake stream......

Sublimination is right..... now its all coming back to me......

I think you should try it......... LOL and let me know.....LOL
Old Feb 3, 2004 | 06:49 PM
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Dry Ice isn't that expensive
Old Feb 3, 2004 | 08:29 PM
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Originally Posted by Wmaxima
...if you stuck a piece of dry ice under your stock air filter would you gain anything or just mess up your engine
Dry ice is under -100 F (-80 C) so I'm pretty sure you would shatter the plastic airbox.
Old Feb 3, 2004 | 08:54 PM
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Wow! Some people are MORONS! Dry ice is carbon dioxide. It will NOT melt at STP (standard temp. and pressure). It sublimes SOLID->GAS Carbon dioxide in NOT combustible; it inhibits combustion. Infact, some fire extinguishers are simply compressed CO2. How would this aid producing more power? Yes, colder, more dense air will increase power. However, the mere fact that you would be adding CO2 to the air-charge will most deffinatly negate any positive effect.
Old Feb 3, 2004 | 09:12 PM
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Originally Posted by bananamax
Wow! Some people are MORONS! Dry ice is carbon dioxide. It will NOT melt at STP (standard temp. and pressure). It sublimes SOLID->GAS Carbon dioxide in NOT combustible; it inhibits combustion. Infact, some fire extinguishers are simply compressed CO2. How would this aid producing more power? Yes, colder, more dense air will increase power. However, the mere fact that you would be adding CO2 to the air-charge will most deffinatly negate any positive effect.
haah well said, you need oxygen to combust, CO2 will suffocate your engine, from chem 101, possibly logic 101
Old Feb 3, 2004 | 09:13 PM
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I don't see how this will have any effect in the intake manifold. The car doesn't breath through the metal. It breaths through the filter which is position far away from any gases it would cause , and if you have a cold air intake then its even farther.
Also you don't run with the block of ice on top of your intake manifold, you leave it there after each run so the car gets ready for the next run. How can it breath any gases when the car is off?

As far as placing it under the filter. you are not doing you car a favor, besides blocking air which reduces power you are getting all the gases listed above.
Old Feb 3, 2004 | 09:41 PM
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Originally Posted by optimus310
I don't see how this will have any effect in the intake manifold. The car doesn't breath through the metal. It breaths through the filter which is position far away from any gases it would cause , and if you have a cold air intake then its even farther.
Also you don't run with the block of ice on top of your intake manifold, you leave it there after each run so the car gets ready for the next run. How can it breath any gases when the car is off?

As far as placing it under the filter. you are not doing you car a favor, besides blocking air which reduces power you are getting all the gases listed above.
im going to take a guess, but if the air travels through the manifold, then the surrounding metal environment will mos tprobably heat the air thats passing by it, its like the radiator in your car, the more medium of heat transfer you give it (air) the faster it will cool, you cant cool the manifold as quickly because its a solid piece that doenst have fins like a radiator does. So what peole probalby do is throw dry ice on it because instead of melting to water, then evaporating, dry ice changes directly to the gas phase because its its transition phase to liquid is marginal. its just preventing the air from heating up as it passes through the manifold.
again, im guessing, but it seems plausible to me
Old Feb 3, 2004 | 10:05 PM
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Dry Ice??

I actually cut a hole in my hood and mounted one of those Coleman Camping coolers right to the cold air intake. Kinda looks like one of those "shaker hoods" from the muscle car era. I prefer the red coolers. More trick looking. Then I drilled a bunch of holes in the lid so I pull the outside air over the dry ice and into the motor.

Anyway, I can put about 10lbs of dry ice in it. Plenty to make 3-4 pulls down at the local strip. And keeps a couple 40's cool. I actually took 3/10ths of a second off my 1/4 time.
Old Feb 4, 2004 | 10:34 AM
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Cirque, I don't know if you are serious or not, but pics please!
Old Feb 5, 2004 | 12:02 AM
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Originally Posted by bananamax
Wow! Some people are MORONS! Dry ice is carbon dioxide. It will NOT melt at STP (standard temp. and pressure). It sublimes SOLID->GAS Carbon dioxide in NOT combustible; it inhibits combustion. Infact, some fire extinguishers are simply compressed CO2. How would this aid producing more power? Yes, colder, more dense air will increase power. However, the mere fact that you would be adding CO2 to the air-charge will most deffinatly negate any positive effect.
OMG, some guy thought that CO2 adds more oxygen to the combustion process and is afraid that it will add carbon buildup to his engine
Old Feb 5, 2004 | 01:00 AM
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I'm sure they werent thinking about what happens when it sublimates...they just wanted colder air.
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