My Quark Heatsink

[squeeforever]

You have to get the Hybrids, not the combos. The combos are for stock gears. But yes, the FLM hybrids, with Some HB Lightning diffs is definately the way to go.

[coolhandcountry]

The flm hybirds with the buggy diffs are alot stronger than the stock ones. The gear ratio is lower as well. 3.31 to 2.87. The size of your tires makes a difference as well. If you run some big heavy tires( like big joes) or some smaller tires like ( crime fighters) effects the heat as well.

[neweuser]

Anyone find out the voltage on the Quark yet? on the fet's?

[phidailo]

which kind of thermal adhesive are you guys using for the heatsink. I had some artic silver 5 laying around and used it, but i have to use zip ties to keep the heatsink/esc in place.

[Procharged5.0]

See attached.

[neweuser]

You did it right. Any adhesive with silver would work the best, but then you would not be able to remove it. Just use the compound.

[Procharged5.0]

That's a better idea yet. I should have thought to mention it!

[neweuser]

Well, if you plan to never remove it, then the adhesive would be fine. But if you never know, don't glue it! The best is to apply, smooth it, stick the heatsink on, and remove the excess with a q-tip around the edges so it doesn't attract dirt. Otherwise, the adhesive will be fine, a tad messy, and really, i would still zip tie it anyway just in case.

[BrianG]

Thermal compound stays gooey so you have to find a way to keep them together and not move around. Thermal epoxy is better IMO because it helps thermal conductivity AND keeps it in place. But like mentioned, is permanent.

I permanently attached the heatsink on the bottom of the Quark with Artic Silver Epoxy. http://www.arcticsilver.com/arctic_s...l_adhesive.htm . I wanted mine permanently and so far it has stayed on well. There is a picure of it on page 3 of this thread.

[phidailo]

thanks for quick replies....what i meant was that my heatsink doesn't stick to the esc that well. I even used the artic silver two-step cleaner. It's been two days since I've applied the compound and it can still easily be moved. Is this normal?

[neweuser]

So if you want to change heat sinks cux it ain't working well, you're screwed. But when you have it set to what you need, then use the adhesive....that's my plan anyways, and my 8 cents...


Yes that's normal, i've had mine laying around without a heat on it and it has not even come close to dry! But that's compound, not epoxy or adhesive.

compound is not a glue type, it's compound, so it won't dry really.

[phidailo]

thanks for clearing it up. I will give it a try to see how well it works before sticking it permanently or maybe mike should have his heatsinks to offer by then

[BrianG]

The AS adhesive is what I use too. It works well too because the heatsink is the same temp (or close) as the ESC. You do have to make sure it's where you want though since it's permanent.

With regular thermal compound you have to be a little careful. For one thing it is oily and tends to attract dust and dirt. Then, if it moves around (which it will unless you have it SOLIDLY mounted), the dirt and stuff will add more small scratches to the surfaces and also reduce the thermal conductivity. Also, after a while, some thermal compounds (like the generic goop at Radioshack), will dry out and not be as effective.

[neweuser]

IMO, you shouldn't use reg white compound, use the silver compound. it is much thicker!!! And really, no dirt should get under it at all if you smooth it nicely an take your time.
I can damn near pick my truck up by the controller with the silver compound without zip ties.