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Old 02-17-2004, 10:50 PM   #106
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just got one of those peliter thing from ebay and just wondering how the hell do you keep that sucker cool enough to reach below 0C temps?

the best ive gone is around 14C with a CPU cooler! thats as big as im willing to lug around!
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Old 02-17-2004, 11:08 PM   #107
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What are you using to power it? I pulled the one out of my pc to test it out but it was only rated for 2 amps so it wouldnt get below 65f.
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Old 02-18-2004, 12:26 AM   #108
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Quote:
Originally posted by SpeediePHATT
What are you using to power it? I pulled the one out of my pc to test it out but it was only rated for 2 amps so it wouldnt get below 65f.
im using my power supply which is able to pull 25 amps to power it! i asked the person i bought it from and he said i need a way bigger heatsink to get the thing below freezing.

the thing i did now is using water cooling. glued the hot side to the cpu and submerged that into water. now water freeze instantly when it hits the cold side!

but its expensive to have a water cooling for it! i bought it just to play around with.
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Old 02-18-2004, 07:02 PM   #109
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A lot depends on the "Peltier" chip itself. There are many different grades of these chip. There are low consuption chips, high performance chips. and all grades inbetween. You get what you pay for.

I have had a lot of requests to make my "SuperCooler" for cars such as the Xray, Tamiya 414, where the motor is buried between the bulkheads. Here is a pic of one I made for a racer with a Xray. Instead of clamping onto the motor from the top, I flipped the "SuperCooler" upsidedown and the motor "sits" in a "saddle". Even with the reduced surface interface between "saddle" and motor, I was able to get motor temp down to the low 20 degrees F.
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Old 02-18-2004, 07:49 PM   #110
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Dude, Pharris, I didn't know you were working with these things. You planning on being @ RC Heat this weekend? (If it dosen't rain) I'd like to take a look. Have you done any testing on Mod motors?
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Old 02-18-2004, 08:23 PM   #111
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Hey John, I'm gonna stay local this Sunday (Poway).

I personaly have only used the "SuperCooler" on stock and 19t with great results. I've built and shipped just over 120 units in the past 2 months. The 1st unit was built for our race buddy's "Chuck" and the most recent (for the Xray) was for "John" @ hobbytown.
Right now I'm waiting on parts for my next batch. I'll hook ya up, if your interested.
email me at [email protected]
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Old 02-19-2004, 12:08 AM   #112
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Pretty sweet..........$60 a piece times 120....$7200....cost about 25 each to make, pretty good profit margin if you ask me!

I need to finish mine up. My design is similar to yours, except I welded mine together with siflos. I still like my out of the car unit, gets the can evenly cold....plus I can monitor it better.

Later EddieO
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Old 03-02-2004, 08:22 PM   #113
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Default "SuperCoolerX"

Some more pics of the "SuperCoolerX" made for the XRAY and other cars the don't have motor access from the top.
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Old 03-02-2004, 08:51 PM   #114
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One more. I like this one.
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Old 03-02-2004, 08:58 PM   #115
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Quote:
Originally posted by BarryH
Water freezes at +32F (which is 0C) not at -32.

The heat generated by the extreme overclocked CPU's compensate for the cold generated by the peltier device. At 40 degrees and higher there will be no frost. Usually all of the air movement and due to extra fans and the large heat sinks on these system evaporate any condensation as well.

-2.3F is still very damn cold! I wonder what that does to the oil in the motor bearings . . .
Off topic a bit, but isn't condensation a function of the dew point not necissarily the freeze point of water? It's the water that kills electronics, regardless of the phase it is in....

This is a pretty cool idea though. There are a bunch of oval guys I race with who put their motors in the beer cooler between runs. This should be more efficient (but you loose the excuse to take the beer cooler, er, wait,,,, what am I saying?!?!?)
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Old 03-02-2004, 10:40 PM   #116
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I'll take and post a pic of my pit table "beverage" cooler. It's basicly the same unit but without the motor clip.
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Old 03-14-2004, 09:47 AM   #117
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TeamPharisWheel,

Please answer my email!

regards,
Pizza
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Old 03-22-2004, 02:34 PM   #118
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I Got a chance to see one of these "coolers" this weekend and I'm very impressed (I am a skeptical person). This is truely a must have device!
Teamphariswheel, I have sent you a PM please get back to me using my email address.
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Old 03-22-2004, 06:54 PM   #119
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Yup, I bought one off him and it works GOOD! I have it cooling the motor from underneath and there's a clip on heatsink on top. Heatsink gets super cold too. First day I used it I went a whole lap faster than my usual.
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Old 03-22-2004, 07:35 PM   #120
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Got mine today, will use it this weekend at our local track & will let ya'll know how it did, here's some pics of a "test dry run"



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