Castle Neu Heatsink?
 

I live in AZ and this time of year its really hot outside. When I go out to drive its at least 100*F so my motor seems to get really hot. Are there any heatsinks that will fit the Castle Neu motor? Thanks for the help.

Isn't it a finned can? I would guess you could get a fan (sorry brian), put thermal grease between the mount and the motor, or lower gearing. What's your setup?

I'm running a 19/64 gearing on 5s lipo with a MMM of course. I guess you could call it a fined can, but the fins are like 1mm tall. Maybe lowering the gearing would help.

Check Tekno. It's an emaxx, right?

Not to be a critic, but it's Neu not Nue.... Made that mistake myself too.

Ok and where did I put Nue not Neu?

How about this one? http://www.impaktrc.com/product_info...oducts_id=4036

Sorry man, I'm really tired. I could have sworn I saw nue on a thread title; maybe it was a different one. That heatsink won't work ether. I think I thought one of the cc/neu mounts on tekno was a heatsink. Other then that, I don't know of a heatsink for the mmm motor...

I can delte those posts if you want....

Its cool. I'm pretty tired myself.

forget the heatsink and just ziptie a 40mm x 20mm 12v fan to the motor. i have a cheap feigao 7xl overgeared on a emaxx on 4s to 48mph, and i get max temps of 155 throughout the entire run! the huge fan works wonders.

That losi heatsink does fit. I saw a buggy driver using it on his CC/neu at a race yesterday. I didn't specifically ask if he had any trouble putting the heatsink on, but it didn't sound like there was any issue. He said the motor seems to run a fair bit cooler with it. He ended up winning buggy A.
I use a 50mm x 15mm 12v fan (puts out a lot of air on 6s :whistle:) on my 1515 and it makes a big difference, especially on warmer days, but haven't used it in summer to test it properly yet. Now, the heatsink, with a fan should run very cool :yes:.

Thanks guys. I am going to get the heat sink and a fan.

The losi heatsink is 39 mm and the cc motor fins are 42 mm. So how would that fit? There is no point in putting a heatsinkin on the fins unless you plan to fill every gap with thermal paste or grinde the fins down. Just ADD A FAN.

The losi heatsink has as split from front to rear, and is bolted together to close that split and clamp around the motor. Doesn't need to stretch much more to fit a 42mm motor.
The guy using one on his buggy said the motor did run cooler with it, but I've also wondered how affective is a heatsink over a finned motor (mainly thinking of the tekno motor mounts)

Aluminium is a very good heat conductor. If the fins are rather short and thick than very long and thin (like on a CPU cooler), adding the heatsink will help with cooling.

I would use whatever is lighter and lower CG. BTW, a hot motor dissipates heat better. If it doesn't get damaged, why run it cooler.

Check this one out. its got a fan, but its for 44mm motors. I could always squeeze it so it would fit right. http://cgi.ebay.ca/%1A44mm-brushless...QQcmdZViewItem

I'm not gonna say it... I'm not gonna say it...

Lol.

Well that heatsink has a fan on it.. Just put a fan on your motor or gear down, please.

I will just get a fan for now I guess.

Ya know, if you lived in Canada, or similar latitude, you wouldn't need a fan. :smile:

Heat dissipation will always be better when the temperature difference (delta T) between the hot object and ambient is larger. BUT, a cooler motor will be more efficient because the cooler the copper is, the less resistance it has.

I know. I don't have a choice where I live though. I don't pay the bills my parents do.

lol, I didn't really expect you to say "Hey, that's a good idea! I'm gonna uproot my whole life so my motor can stay cooler!" :lol:

I wish it was a little cooler here. if I had the choice I would move somewhere cooler.

I would suggest gearing down a bit to lower temps rather than add a fan or heatsink. Then if it's still hot try a fan, most likely you will need a fan since your in AZ. I don't know how you do it down there, it's too hot for me here in NY!

Well you have to wear shorts and a short sleve shirt for most of the year, or you will get heat stroke. And you have to drink lots of water. Thats how you survive down here.

Back to the thread. Well right now 5 people say add a fan, 3 people say add a heat sink and 2 for lowering the gearing. I think I will add a fan for sure and lower the gearing.

I visited Phoenix for a week several years ago for my job, and my first day there, they hadn't gotten me a rental car yet. So lunchtime comes around and everyone leaves me at the shop. I walk outside, it's hot, but I figure it's not sooo bad, so I decide to walk a couple blocks to some corner store to get something. As I'm walking, it's still hot, but I see I'm not sweating. "Hmm, not too bad" I thought. But as soon as I walk into the air conditioned store, sweat began gushing out of every pore in my body. I felt like I stepped out of a pool (and looked like it too). That one experience was enough for me!

I tell people this story and they give me the old "oh, but it's a dry heat" line. Makes me want to punch them in the lips.

Thats funny. :lol:I got suspended from the bus once and I hade to ride my bike to school. it was just starting to get hot outside, but i didn't think much of it.:neutral: It was maybe 85*f in the mornings so it wasn't to bad, but the first day on the way home at 4 p.m. it was over 100*F. I didn't think it was so bad until I got home. I walked inside and started sweating like crazy.Then my Mom came home and laughed at me.:na: She said "Wow you sweating a lot, I bet you wish you wouldn't have gotten suspended from the bus. Am I right?"
I had got suspended for 10 days for writing on the bus windows with a hot glue stick. Those 10 days were hell. It was bull$hit because it came off the windows and It was easy to get off. 10 days was stupid.

What did you write?

All kinds of crap. I hated the bus driver.