2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Dry Ice is a wonderful thing....

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Old 09-16-02 | 06:35 PM
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Dry Ice is a wonderful thing....

Well after searching half the day to find a dry ice vendor in WV. I finally managed to get some from a welding shop. Not sure what they use it for but good enough for me after convincing them to sell it to me (something about hazardous material). It took roughly an hour to remove all sound deadening behind the drivers seats back to the back(including looking and travel time around 5hrs). I also removed the speaker surrounds...spots welds arent much fun at all. The project car keeps getting lighter and closer to finishing every day. Finish up the haltech install tomorrow night hopefully.

-Morbius
Old 09-16-02 | 06:49 PM
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cool good job
Old 09-16-02 | 06:55 PM
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Am I missing something? What is the dry ice for?
Old 09-16-02 | 07:07 PM
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If you pack dry ice around the sound deadening you can wait like 20 min and just smack it with a hammer and it comes right out instead of taking 8 hrs scraping it with a putty knife and a heat gun......removes it clean enough to just paint black afterwards. It does a really nice job. I will post pictures after I get it all finished up.

-Morbius
Old 09-16-02 | 07:44 PM
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Originally posted by Morbius
If you pack dry ice around the sound deadening you can wait like 20 min and just smack it with a hammer and it comes right out instead of taking 8 hrs scraping it with a putty knife and a heat gun......removes it clean enough to just paint black afterwards. It does a really nice job. I will post pictures after I get it all finished up.

-Morbius
Hey I learn something new everyday, great tip!
Old 09-17-02 | 10:14 AM
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Don't worry 1FastT2.....Im sure I will be asking more questions about engine things. On a good note I plan on stoping by SevenSpeed on the way home from Pittsburgh today so I will actually get to see a real shop for once lol.

-Morbius
Old 09-17-02 | 10:49 AM
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When it came time to remove the SDG(sound deadening goo) from my car it was the middle of the winter. I just pushed the car outside and later beat the SDG off with a hammer. Saved money and time.
Old 09-17-02 | 12:58 PM
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Would liquid nitrogen work? I don't see why it wouldn't, except maybe too cold? It is -324 F... is I added it slowly enough, and then kept it cold, I could cryo-treat my interior, lol.

seriously, though, can you make it too cold? It is about 210 degress colder...

I have easier access to liquid nitrogen.

Last edited by scathcart; 09-17-02 at 01:03 PM.
Old 09-17-02 | 01:13 PM
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Scathcart,

Well just with dry ice it was making alot of popping noises and so forth. I think you would have to use a good bit of liquid nitrogen to make it freeze all the way through. The dry ice you can actually pack around what you need since its just like snow. I doubt you will hurt anything though. The only thing back there is the gas tank/fuel pump. I doubt the metal will shrink enough to break welds or anything but you might not want to do a large section at a time.

-Morbius
Old 09-17-02 | 01:25 PM
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cant u use dry ice to take out minor dings and **** i the body? i heard that since it is so cold you can just move the ice around the ding and it will shgrink the metal and remove it. is this bs?
Old 09-17-02 | 01:53 PM
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i have heard that as well and i believe it to be fairly accurate for minor dings

Justin
Old 09-17-02 | 02:07 PM
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Originally posted by Morbius
Scathcart,

Well just with dry ice it was making alot of popping noises and so forth. I think you would have to use a good bit of liquid nitrogen to make it freeze all the way through. The dry ice you can actually pack around what you need since its just like snow. I doubt you will hurt anything though. The only thing back there is the gas tank/fuel pump. I doubt the metal will shrink enough to break welds or anything but you might not want to do a large section at a time.

-Morbius
That's what I figured.

Don't worry about the fuel pump.... Its not in a location where'd I'd worry.
Old 09-17-02 | 02:21 PM
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see your using it for removing tar i was thinking of puting a block of it on my intercooler next time i go to the dyno
Old 09-18-02 | 04:04 PM
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Never knew CO2 was considered a "hazardous material", cause that's what "dry ice" is basically is.

Try checking the ice cream shops for this stuff - they usually have it and readily sell it, no problem.&nbsp We normally got them from the local Baskin Robbins with very little fuss.


-Ted
Old 09-18-02 | 05:07 PM
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Originally posted by scathcart
Would liquid nitrogen work? I don't see why it wouldn't, except maybe too cold? It is -324 F... is I added it slowly enough, and then kept it cold, I could cryo-treat my interior, lol.

seriously, though, can you make it too cold? It is about 210 degress colder...

I have easier access to liquid nitrogen.
wow, how do you have easy access to liquid nitrogen? i triedgetting some a long time ago, but no luck. you can usually get dry ice at grocery stores. i get mine from king soopers(kroger).
Old 09-18-02 | 05:11 PM
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Originally posted by sephalix

wow, how do you have easy access to liquid nitrogen? i triedgetting some a long time ago, but no luck. you can usually get dry ice at grocery stores. i get mine from king soopers(kroger).
I am an engineer at a very large university. As an engineer, I have copies of a few keys to some buildings... I figure my $5000 in tuition this year should be worth a gallon or two of liquid nitrogen, eh?
Old 09-18-02 | 05:30 PM
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the King Soopers around here doesn't sell dry ice anymore after a little "incident " in the back of the parking lot
Old 09-18-02 | 05:34 PM
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Dairyland, or any of the places where the load up the trucks with milk or any dairy products usually have a handfull to spare, and they will sell it off, like pancakes
Old 09-18-02 | 06:14 PM
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To get liquid nitrogen find a farm vet that breeds cattle they usually have access to liquid nitrogen(things you see and learn in WV)

-Morbius
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