Dry ice in intercooler.
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Dry ice in intercooler.

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    Default Dry ice in intercooler.

    Just curious. Has anyone ever tried an intercooler set up for drag racing, that employes dry ice instead of water? This would seem to be the ultimate way of cooling the charge for a drag motor, because it could be replaced every time, before the run. Obviously the intercooler would need to have "doors" where the ice could be loaded, but that wouldn't be hard to do.......Just thinking out loud.




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    Quote Originally Posted by DMOORE View Post
    Just curious. Has anyone ever tried an intercooler set up for drag racing, that employes dry ice instead of water? This would seem to be the ultimate way of cooling the charge for a drag motor, because it could be replaced every time, before the run. Obviously the intercooler would need to have "doors" where the ice could be loaded, but that wouldn't be hard to do.......Just thinking out loud.




    Darrell.
    that would be a noval idea, but, i dont think it would work...how would the gas get by the dry ice & into the motor?...i think a better idea would be to maybe run some nitrogen sealed up in the tubes inside the cooler that go thru the fins along with the lake water around the outside of the cooler...i hope i explained myself rite!

    FastRat

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    Quote Originally Posted by DMOORE View Post
    Just curious. Has anyone ever tried an intercooler set up for drag racing, that employes dry ice instead of water? This would seem to be the ultimate way of cooling the charge for a drag motor, because it could be replaced every time, before the run. Obviously the intercooler would need to have "doors" where the ice could be loaded, but that wouldn't be hard to do.......Just thinking out loud.




    Darrell.
    People have done similar things in the import world of drag racing with some good results..

    If it was me I'd consider running something like antifreeze through a heat exchanger on one end with dry ice or?, and then up to the innercooler. Instead of trying to store the ice itself in the innercooler.

    RD
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    Yea I think dry ice and alcohol would be really cold.

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    Quote Originally Posted by FastRat View Post
    that would be a noval idea, but, i dont think it would work...how would the gas get by the dry ice & into the motor?...i think a better idea would be to maybe run some nitrogen sealed up in the tubes inside the cooler that go thru the fins along with the lake water around the outside of the cooler...i hope i explained myself rite!

    FastRat

    I see your point. The dry ice may be a bit hard to package. So how bout this: a normal air to water intercooler that's on a boat, but instead of water passing through, simply seal that side up, and install a pressure fitting for liquid nitrogen. Then before the run, pressure the cooling side with liquid nitrogen and, there ya go. Ice cold baby. This actually seems like it would work. It doesn't have to be high pressure, the nitrogen is not explosive, and it could easily hold it's temp through the run.



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    In the diesel drag truck I used to race, we tried dry ice in the IC and trans heat exchangers, and pumped alcohol through the radiator between rounds to cool everything off.

    Because the dry ice lets off a gas (CO2) as it "melts", there would have to be a pressure relief on the top of the reservoir to let it vent. Honestly, ice did just as good of a job though, and you didn't have to wear gloves to handle it.
    Keith-


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    Put some dry ice and a little water in one of your plastic water bottles, walk away, Kaboom! It would most certainly have to have a pressure relief. Don't know what it would do with gas or alcohol. Could be fun.
    steveo143 AKA DiMarco 21 II



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    Quote Originally Posted by steveo143 View Post
    Put some dry ice and a little water in one of your plastic water bottles, walk away, Kaboom! It would most certainly have to have a pressure relief. Don't know what it would do with gas or alcohol. Could be fun.


    Nitrogen is inert.




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    Quote Originally Posted by Infomaniac View Post
    Yea I think dry ice and alcohol would be really cold.
    Dry ice and alcohol were used by the camaro teams in scca racing in the late sixties. They super chilled the race gas prior to putting it in the tank. The Idea was to shink the volume of the fuel. 23 gallons in a 22 gallon tank. this gave them a small advantage in refueling. The dry ice and alcohol cooled to -70 deg f. I read this in a car mag over 15 yrs ago.

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    Quote Originally Posted by DMOORE View Post
    Nitrogen is inert.

    Darrell.

    it is inert, BUT.... it will expand when gassing off.

    conical tubes (remember science class?) closed up w/dry ice sound like m80's. damn near sh!t my pants when someone stuck one in my lab drawer.

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    Quote Originally Posted by SlowSquirt View Post
    it is inert, BUT.... it will expand when gassing off.

    conical tubes (remember science class?) closed up w/dry ice sound like m80's. damn near sh!t my pants when someone stuck one in my lab drawer.

    That's why I was thinking the liquid nitrogen in post 5. A pressure fitting with release valve.


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    Bob Brownell and I worked with Richard Lee and helped develope the Lee intercooler. We did all the R&D work and ran it on the High Anxiety BGH. The ice system that Bob engineered seemed to work the best. It featured a separate 5 gallon tank that we filled with ice cubes, and a diverter valve that switched from lake water flow to ice water flow when the blower made 10lbs or more of boost. It worked great. ice was almost gone when we got back to the ramp. We didnt have Racepak's back then so I cant say how much the charge temp was reduced, but the performance gain was substantial. Jim

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    This was done in the 60s by The Mallicote bros. on a mean turboed mopar, they had a removable top and loaded it w/dry ice and water before a run. TIMINATOR
    MODESTY IS A CRUTCH FOR THE INCOMPETENT!

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    Back in '87 when we ran GN Buicks we ran a steel tube in an "S" shape in front of the intercooler and sprayed liquid CO2 in it, it worked well too! We also run liquid to air coolers with an orifice tube at the inlet to act as an A?C deal. We used freon when it was cheap and then converted that to CO2 also. TIMINATOR
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