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Old 01-19-2005, 11:41 PM   #31
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If you get hit on the side and the fan gets hit on the motor . . . there goes your fan. . .
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Old 01-20-2005, 12:23 AM   #32
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i have had that happen to me, the fans are not that cheap about $10-$15 and hard to get hold of sometimes but when they get bust in a crash that aint your fault

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Old 01-20-2005, 02:16 AM   #33
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Kiddynamite:

I see your car....... and you installed 3 fans ?? What class do you run ? Stock ?
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Old 01-20-2005, 02:22 AM   #34
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Quote:
Originally posted by rceric
Doh forgot the attachement.
Very nice...... I like that !

Does it REALLY increase performance ?

Once I read Japanese Magazine, and the article mentioned lower lap times for each cooling stage, from cooling tires, cooling esc, cooling motor, cooling battery.
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Old 01-20-2005, 08:38 AM   #35
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I think you answered your own question?
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Old 01-20-2005, 08:51 AM   #36
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Quote:
Originally posted by asw7576
Kiddynamite:

I see your car....... and you installed 3 fans ?? What class do you run ? Stock ?
That's not my car... it's BK's car.
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Old 01-20-2005, 08:58 AM   #37
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Quote:
Originally posted by asw7576 Once I read Japanese Magazine, and the article mentioned lower lap times for each cooling stage, from cooling tires, cooling esc, cooling motor, cooling battery.
I raced motorcycles, cold tires will kill you. A fresh warm battery gives you punch. I would cool the battery after the race, maybe while discharging it.

I think I'll test one fan and then two. I do like the separate on/off switch ideal. That way you can have your pitman turn it on before placing the car on the grid.
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Old 01-20-2005, 09:08 AM   #38
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Quote:
Originally posted by Greg Sharpe
Yeah, fans definitely work! In fact, when using a 6x1 or similar, fans become a necessity as the heat tends to soften solder!
Greg, this is mainly why I asked about the fans. My buddy Nick Smart and Brian Jucha were laying it down last sunday, it was the best battle I've seen locally in a long time. Nick ran a 8x1 V2 and the solder came undone. We were messing with some fan ideas, but were concerned about amp draw. On the Pulsar at 6V, the dual fans were pulling about 2amps. We tested 6V because that's what the receiver puts out. Let me know if we're thinking this all wrong.
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Old 01-20-2005, 09:19 AM   #39
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Quote:
Originally posted by asw7576
Very nice...... I like that !

Does it REALLY increase performance ?

Once I read Japanese Magazine, and the article mentioned lower lap times for each cooling stage, from cooling tires, cooling esc, cooling motor, cooling battery.
If you want cool tires then why would they make tire WARMERS?!

I have 3 of the 4 down.(warm tires, [isn't necessary with foams] cold motor, cold ESC) Now if I can just learn how to time it to where my charger finishes charging just before my race.
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Old 01-20-2005, 09:30 AM   #40
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Tyres need to be warm for perfect operation, hence the tyre warmers. However normally they start to go off at the end of a race due to over heating.
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Old 01-20-2005, 09:46 AM   #41
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Quote:
Originally posted by Andy M
Tyres need to be warm for perfect operation, hence the tyre warmers. However normally they start to go off at the end of a race due to over heating.
I know I was joking since he said cool tires and cool batteries.
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Old 01-20-2005, 10:15 AM   #42
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Quote:
Greg, this is mainly why I asked about the fans. My buddy Nick Smart and Brian Jucha were laying it down last sunday, it was the best battle I've seen locally in a long time. Nick ran a 8x1 V2 and the solder came undone. We were messing with some fan ideas, but were concerned about amp draw. On the Pulsar at 6V, the dual fans were pulling about 2amps. We tested 6V because that's what the receiver puts out. Let me know if we're thinking this all wrong.
Nick and jucha were laying it down sunday, that was fun to watch.

i was the guy coming in last in 12th scale wooooohoooooo
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Old 01-20-2005, 12:44 PM   #43
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Quote:
Originally posted by Frank McKinney
I think you answered your own question?
Ha..ha..ha... I didn't notice that

Each cooling attempt gave the test driver lower lap times..... I don't believe it
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Old 01-20-2005, 01:06 PM   #44
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I need to clarify about the cooling things, I mean how the test driver did it. I just describe the article quick and simple.

The test driver first run the car without cooling at all and his friend record his best lap times.

First attempt : Adding motor heatsink and small fan to motor, the best lap time improve little bit. Motor temp drop quite significant.

Second attempt : Adding esc heatsink and small fan to esc, the best lap time is quicker than the first.

Third attempt : Make bigger hole in tyre's rims / velg. Previous best lap time is broken. The tyres temp is lower too, perhaps did not overheat.

Fourth attempt : adding battery heatsink. The best lap time is marginally better than previous.

Total saving about 2 second faster than without cooling at all.

Maybe true or hoax I don't know....... his car is pretty crowded with the cooling stuffs.
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Old 01-20-2005, 02:25 PM   #45
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Would there be an issue with connecting the fan inline with the motor leads so that when you throttle on the fan comes on, but while waiting on the grid the fan isn't on thus not draining battery (as little as it may be)?

I'm sure the cooling effect is decreased some, but are there any other issues?
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