My Quark Heatsink

[jhautz]

I didnt even notice they were 12v. I agree... look for somw 5v fans. The heat sinks on those would be prfect though. The Quark is 37mm X 74mm. 2 40X40 heatsinks will cover the entire back surface of the controller. The 5v fans metalman linked were perfect. I founs some on ebay, but they were more expensive than metalmans.

If you can, run fans. I like the insurance of a nice cool esc. I'm sure you would be fine w/ no fan if you can position it so you get some decent airflow over the heatsink.

[neweuser]

I'm going to run two 30mm fans, which should be nice. heat sinks are hard to find that look and work nice. Some are spendy. If the bottom of the heatsink is thicker, it'll work the best and you may not need fans at all. Or, get the ones you were looking at and then just take the fans off, sell them on ebay, and buy the other ones.

[phidailo]

thank you for the advice. I bought the heatsinks for the pre-threaded holes for fans. I have a couple of 5v fans at home i'm goin gto use. :027:

[glassdoctor]

Hey dudes... why do you think 12v fans are bad or can move some good air???

I have run both 5v and 12v. Some fans are definitely better than others... some are duds and some work great.

I have always run 12v fans on whatever the pack is. So a 4s lipo would really make a 12v fan boogey I would think.

BTW, when I get a 125b I think I will try to stick it to the alum chassis and see how that does as a heat sink... no added weight, clutter, etc... it's a free built-in sink with lots of airflow under the vehicle. Anyone try that with a Quark? (buggy/truggy)

[jhautz]

Originally Posted by glassdoctor

Hey dudes... why do you think 12v fans are bad or can move some good air???

I have run both 5v and 12v. Some fans are definitely better than others... some are duds and some work great.

I have always run 12v fans on whatever the pack is. So a 4s lipo would really make a 12v fan boogey I would think.

On 5s or 6s lipo, you will boogy the blades right off of the fan.:005:

Not to mention the fan motor will burn up in no time. On 5V off the BEC you can run whatever battery you want and it doesn't matter.

12V fans are fine if you are running only 12 cells.

[danverz]

Originally Posted by jhautz

On 5s or 6s lipo, you will boogy the blades right off of the fan.:005:

Not to mention the fan motor will burn up in no time. On 5V off the BEC you can run whatever battery you want and it doesn't matter.

12V fans are fine if you are running only 12 cells.

Hi, I am running a 12 volts 6x6 fan with 5S lipo without problems since a month or
two.

Daniele

[HotnCold]

Originally Posted by danverz

Hi, I am running a 12 volts 6x6...

Daniele

I hope you mean 60x60mm - 6x6 would make a hovercraft...

[danverz]

Originally Posted by HotnCold

I hope you mean 60x60mm - 6x6 would make a hovercraft...

haha,
sure, here we use to call them the 25x25, the 3x3, 4x4 and so on :)

Ciao,
Daniele

[HotnCold]

Originally Posted by jhautz

On 5s or 6s lipo, you will boogy the blades right off of the fan.:005:

Not to mention the fan motor will burn up in no time. On 5V off the BEC you can run whatever battery you want and it doesn't matter.

12V fans are fine if you are running only 12 cells.

I am running 2 12v fans on my quark heatsink - I got 35 mins of solid run time and its still holding - but boy does she sing when i plug her into the 5S....

[neweuser]

Walter, Mike was saying that running 12v fans from the receiver would not be as effective as running say...5v fans?

[squeeforever]

Yea, he isn't running them from the reciever, but off the batteries.

BTW, when I get a 125b I think I will try to stick it to the alum chassis and see how that does as a heat sink... no added weight, clutter, etc... it's a free built-in sink with lots of airflow under the vehicle. Anyone try that with a Quark? (buggy/truggy)

I do believe that Darren did that with great success on his Lightning Stadium.

[BrianG]

Mounting to the chassis should work fine as long as the surface is VERY flat, free of scratches/pits/bumps, and unfinished (painted, anodized, etc). The only thing that makes me leery is that there is no padding to protect the ESC against jarring. That is why I prefer to add a heatsink to the ESC and then mount that on some type of foam padding at least 1/8" thick.

[HotnCold]

I can tell you that the fans probably wont last as long at 21 volts than at 12 - but i can tell you this - they move some air :005: - i also have 5 volt fans - Maybe ill use a 12 volt and a 5 volt on my heatsink - Easy enough to do -I had my quark mounted to my custom rear plate with a heatsink mounted underneath and i had some problems with thermaling - i changed my design - used my heatsink and recessed my quark into the back - mounted with thermal paste and 2 fans. I ran 7400mah 5S - thru her yesterday - and i was hard on the trigger trying to get her as hot as i could - she got warm - but it didnt thermal - even after 35 mins of racing on the track. It worked awesome - im redesigning my heatsink to see if i can improve the performance - Overall im happy - For now anyway:cool:

[neweuser]

For some reason walter i thought you were running the mgm. Wow, that's too bad about the thermalling probs you had. Good to hear that you got it to go now though. I may add and extra hunk of aluminum to mine as well. i have a huge piece that the quark can fit on, so i will be a dremmeling fool! LOL, but i should be fine with the set up. Those neu's must be awesome motors!

[HotnCold]

Yea - the mgm is on the centerdiff revo - didnt break her out that day