Dry Ice = pwnz!!! Bye bye heat soak!
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Friendly Neighborhood Ogre
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From: www.gunatics.com
Car Info: GUNATICS.COM
Anyone who thinks aluminum and certain other metals can not be ruined by extreme heating and cooling is an idiot.
Im no expert I use to run my 5 liter at sacramento in the 1/4 for fun. Mainly test and tune days so everyone would do a lot of runs. NEVER did anybody I know who was knowledgable use dry ice, infact they said the same thing (that it was bad to use). A lot of people used ice and dealt with the annoyingness of it.
Think about the physics of what happens when something gets that cold/extremely hot, think about dry ice bombs exploding.
Also anybody who drives their car hard, and then thinks their intercooler shouldn't be hot to the touch, well **** I don't even know what to say.
Im no expert I use to run my 5 liter at sacramento in the 1/4 for fun. Mainly test and tune days so everyone would do a lot of runs. NEVER did anybody I know who was knowledgable use dry ice, infact they said the same thing (that it was bad to use). A lot of people used ice and dealt with the annoyingness of it.
Think about the physics of what happens when something gets that cold/extremely hot, think about dry ice bombs exploding.
Also anybody who drives their car hard, and then thinks their intercooler shouldn't be hot to the touch, well **** I don't even know what to say.
Dude, of course aluminum can be ruined by extreme cold/heat, it's just plain *** physics, but a bit of dry ice on the IC wont do anything to it... If we're talking about drenching the IC in liquid nitrogen, well, that's a diff story as it is over 300 below zero, makes dry ice look hot.
This thread isn't about 327 degree below zero liquids freezing the intercooler, we're talking about some dry ice sitting on top of the IC fins (read, not making contact with the core) allowing it to cool down the core, which wont do anything to harm it... With liquid nitrogen however, you would envelope the entire I/C in a liquid that would freeze everything instantly on contact, and yes, it would change the properties of the metal... No one is debating this. I only said that a bit of dry ice sitting on the fins of your IC wont do jack to ruin anything. There's no need to resort to name calling, especially for something like this, sheeesh!
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Joined: Mar 2008
Posts: 3,856
From: San Leandro, CA
Car Info: Forester XTi
Bruce,
Dry ice sits in is solid state at (−109.3 °F), Aluminum going from 100°F to say 30°F as quickly as the dry ice is going to take it, will after a short amount of time, start to crack the welds that hold the fins and veins in.
What I would suggest is the Subtle chimney, and run a mix of 2% alcohol in the water blend for your intercooler spray. This should make it evaporate faster, and in turn drop the temp quicker. Unless I am wrong on that mix part, anyone?
Dry ice sits in is solid state at (−109.3 °F), Aluminum going from 100°F to say 30°F as quickly as the dry ice is going to take it, will after a short amount of time, start to crack the welds that hold the fins and veins in.
What I would suggest is the Subtle chimney, and run a mix of 2% alcohol in the water blend for your intercooler spray. This should make it evaporate faster, and in turn drop the temp quicker. Unless I am wrong on that mix part, anyone?
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From: Discovery Bay, CA
Car Info: Evo X GSR, F250 Powerstroke Diesel
Bruce,
Dry ice sits in is solid state at (−109.3 °F), Aluminum going from 100°F to say 30°F as quickly as the dry ice is going to take it, will after a short amount of time, start to crack the welds that hold the fins and veins in.
What I would suggest is the Subtle chimney, and run a mix of 2% alcohol in the water blend for your intercooler spray. This should make it evaporate faster, and in turn drop the temp quicker. Unless I am wrong on that mix part, anyone?
Dry ice sits in is solid state at (−109.3 °F), Aluminum going from 100°F to say 30°F as quickly as the dry ice is going to take it, will after a short amount of time, start to crack the welds that hold the fins and veins in.
What I would suggest is the Subtle chimney, and run a mix of 2% alcohol in the water blend for your intercooler spray. This should make it evaporate faster, and in turn drop the temp quicker. Unless I am wrong on that mix part, anyone?
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From: Discovery Bay, CA
Car Info: Evo X GSR, F250 Powerstroke Diesel
http://www.youtube.com/watch?v=Us7VDZT-NcQ
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From: Bizerkeley
Car Info: MBP 02 WRX wagon
BTW the coefficient of thermal expansion for aluminum is .00023 /degree K.
so it is trying to shrink to almost 98% of its size when you subject it to a 200 degree F delta like that, that is going to cause some serious stress.
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Joined: Mar 2008
Posts: 3,856
From: San Leandro, CA
Car Info: Forester XTi
The way I see it, the best we can do for our cars is...
1) Wrap the downpipe in exhaust wrap
2) Wrap the turbo in a turbo blanket
3) Put in a higher end heat shield like the SPT unit
4) Wrap the uppipe in exhaust wrap.
I figure you do all that, and you will cut underhood heat in half. Done right, and you may see a 1-2hp increase due to better thermal efficiency of the exhaust and turbo system.
1) Wrap the downpipe in exhaust wrap
2) Wrap the turbo in a turbo blanket
3) Put in a higher end heat shield like the SPT unit
4) Wrap the uppipe in exhaust wrap.
I figure you do all that, and you will cut underhood heat in half. Done right, and you may see a 1-2hp increase due to better thermal efficiency of the exhaust and turbo system.
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