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Old 08-18-2006, 04:06 AM   #1
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Exclamation Fastrax Motor Cooler (Like MM)

Quote:
Fastrax Super Cooling System



This is a motor inter-cooling system which enables the user to cool the motor down to near Sub-C temperature prior to use. This process then delays any heating up of the motor during a race, keeping the motor close to maximum performance and efficiency throught a 5 minute run.


Improved run time
Longer life for com and brush,
Retains magnet power normally lost by heat.

Features

12v Cooling Fan
Heatsink
Electric Thermo Element
Motor Clamp
Crocodile Clip Lead

Specification
Size - 52 x 70 x 75mm
Approx. Weight - 190g
Motor Clamp Size - 540
Amp Draw - 3.0-4.0 Amp
Input - Minimum DC 9v/12v Max

Part # Description Price (RRP)
FAST417B Super Cooling System - Blue 39.99
FAST417P Super Cooling System - Purple 39.99

Source: CML Distribution
http://www.cmldistribution.co.uk/pro...subMenu=CR-ELC
Thats 20 cheaper than the Much More version. Mine's already on order.

Anyway, Does anyone else this theres a factory in HK or China doing these (unbranded) even cheaper?
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Old 08-18-2006, 11:34 AM   #2
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I hope it cools better than my Much More did... I was very unhappy with mine... definitely not worth the price I paid
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Old 08-18-2006, 02:43 PM   #3
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Quote:
Originally Posted by ottoman
I hope it cools better than my Much More did... I was very unhappy with mine... definitely not worth the price I paid

the problem with tiers is that they use only one 30mm peltier. in addition they do not use any thermal grease between the clamp and the peltier to more effectively transfer the cold. bigger heatsink and two peltiers will always do better, especially in hot air temps which is really the reason you're using one of the coolers anyway.
Crazy Ronny, myself and a few others out there have been making what we think are much more effective units for a while. However, the muchmore unit can be more effective if you take it apart and apply some thermal grease on the contact surfaces for the pelties. Make sure it goes back together nice and tight to avoid airgap.
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Old 08-18-2006, 02:53 PM   #4
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I did that and it still wasnt what I expected. I think thats the main problem is that people expect alot more.
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Old 08-18-2006, 03:08 PM   #5
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Quote:
Originally Posted by Bob Barry
I did that and it still wasnt what I expected. I think thats the main problem is that people expect alot more.
yep, you're right The one really nice thing about their coolers is the fan. It puts out 12000 RPM and manages to keep the dinky heatsink somewhat cool. However, the problem lies in heatsink/peltier combo. Here is a copy to my thread but as you can see, instead of using a 50mm heatsink like them, I use a 60mm unit and 2 40mm peltiers. Nice and cool but not as flashy!
http://rctech.net/forum/showthread.p...91#post2588491
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Old 08-18-2006, 05:24 PM   #6
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Can you add another peltier to the mm unit?
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Old 08-18-2006, 06:02 PM   #7
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Quote:
Originally Posted by nordheim
Crazy Ronny, myself and a few others out there have been making what we think are much more effective units for a while.
No pun intended!
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Old 08-18-2006, 07:16 PM   #8
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Quote:
Originally Posted by Fervidsea
Can you add another peltier to the mm unit?
I'd like to know the same thing! Sounds like the perfect oppourtunity for someone (nordheim ) to write a tutorial!!
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Old 08-18-2006, 08:09 PM   #9
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Quote:
Originally Posted by Fervidsea
Can you add another peltier to the mm unit?
you sure can. You would just have to use thermal epoxy to keep everything together as the brackets which holds the unit together can't reach to screw it back together if you add a peltier. What you also have to keep in mind is when you add a peltier, the heatsink may not be able to dissipate all the heat on the top. The cold side will get cooler with 2 peltiers but the hot side will get hotter as well and you may defeat your purpose.
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Old 08-18-2006, 08:10 PM   #10
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Quote:
Originally Posted by killingtime
I'd like to know the same thing! Sounds like the perfect oppourtunity for someone (nordheim ) to write a tutorial!!
If you look for the DIY thread under the Electric On-Road, I put down a lot of tips a couple of weeks ago.
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Old 08-18-2006, 09:58 PM   #11
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Thanks, I'll check it out now.
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