heres my ******* heatsink/fan that i modified to fit the stampede 4wd. its also marketed as ezrun. both the ******* and ezrun can be found on ebay there the 36x55mm ones. some from hong kong and some are shipped from the us but cost a few bucks more.
did some testing of temps, useing my 9.9v lifepo and the stock 11 tooth pinion gear to make some more heat and more interesting (uselly run 9 tooth) and did an oval track in the front yard at mostly full throttle 1/3 on grass. ran stock 180 but then stopped after i relized it was that hot
integy heatsink 160
******* (this one im writing about) 140 degrees WINNER
the fan blows down i tried to turn it upside down but i went off a jump the fan hit the mounting peice and broke a few fins might try it with some spacers to see if its better.
WEAR YOUR SAFTY GLASSES i got a peice of aluminum stuck in my eye for 3 days
stock it will not fit but with a little dremeling it does.
cut 2.5mm of both sides (5mm total)
cut 11mm or 3 fins off the bottom
cut off the 7th and 8th (not including the 3 fins cut off) to acces the motor screw
cut out a little rectangle 17mm (6 fins) up and 13mm in to make room for the more wires
raptor body painted blue and black (looks real nice will post pics later)
king heads motor mount
teknos in rear with aluminum hex
that motor fan is a monster no wonder it's running cool
Does more $ = More fun?
Lol I did this exact installation a few days ago. What did you do about the screws coming out the side of the motor can? I had to dremel little slots for them to slide in to.
Thats wicked.....where do I find that setup?
Last edited by cooleocool; 07-13-2011 at 10:31 PM. Reason: Edited for language abuse. Please be more mindful of the words you choose on the forums...youngsters visit these forums.
@zball i shorted the whole heatsink so i could keep the black cover over the screws your talking about
@sdzdesigns you can get them on ebay, search ******* or ezrun fan its the 36x55mm one. it will not fit without modifacation as i showed
I can also confirm it works AWESOME. I had a Kershaw 9L running on a MMP in my Slash 4x4. It ran hotter than a popcorn fart, like 180°+ in about 10-12 minutes on 3S geared for 45mph (about stock for the Veleneon).. After the Heatsink/Fan combo it was down near 150° after a whole pack (+-20 minutes).
You can really hear this fan running. Voooommmmmmm LOL
Always in Trouble for trying to help out.
where did you get this?
Just Google search ******* Fan and you'll find lots.
I just tried the Google search and its the first one to come up.. $4.79 too.. so its cheap.
Always in Trouble for trying to help out.
I am running the Castle 2400 motor. I shouldn't have to do any mods to make it fit? The length of the motor can is why you cut it down, correct?
Member of the 10,000 + posts club! Here to help!
I got it of eBay search "ezrun heat sink" or "turnagy heat sink" and sort by distance to find one in the us. There a bit more but you won't have to wait a month
It's the 36mm x 55mm.
I don't have a castle motor to try it on but I'd bet you would have to cut it so it doesn't wrap around the motor as far and for the gear mesh screw.
wait you took 4 off the bottom? not 3 as far as i can tell
wait so take 3 or 4 fins off?! need help
It appears from the first pic that I cut off 4 instead of the 3 that I said earlier. I later cut off 2 more (6 total) fins off so I use a 9 tooth pinion gear. So now on the right side of the first pic, there is 4 fins then 2 shaved down and 4 more fins.
If you want to take some pics of the heat sink straight on from all sides, I will mark where to cut
alright heres the pics and on the bottom i have sharpy on 3 fins so dont get confused
I can't see the pics. Says "This content is currently unavailable"
Maybe try photo bucket
ill try i dont have an account ill make one
all lines should be straight
thank you so much for your time bro! helped alot
is this a heatsink/fan combo you can find? or is the fan and heat sink two different products you have to find?
also, this will sound noob, but whats with the ***? cant name the brand im guessing?
it is one product. search ebay for "36x55 heatsink fan"
I didn't do the * it must have gotten edited.
it was a brand of a Chinese rc company that mainly makes cheap-o batteries
I scored one of these on ebay yesterday for < $20 w/shipping. Will modify for the summer. I've got twin integys on there now which will be a good backup, but one big fan seems like it will flow even more air. Thanks for the tip!
I'm surprised Traxxas doesn't offer one of these heatsink/fan combos for the motor. I like their ESC fan and it does a good job.
Very nice mod man!
I think it probably relates to temp variants. I'd just leave it be. Cooler the better. As you say it cannot have any bearing physically on the pinion.
Can't wait to do this mod as well!
Still no dremel...
Currently looking for a cheap used one on ebay and craiglist.
Last edited by stampede_fanatic; 02-21-2013 at 01:47 PM. Reason: Post did not go through... Bad connection
With that said, there will be more heatsink that's required to wrap around the motor for a 25-tooth pinion compared to the 11-tooth since (Like I said above) the motor will be sitting higher on the chassis. Anyways, if you plan on gearing down from a 25-tooth to a 9-tooth pinion (Really gearing down here by a lot), the heatsink will not snap on the motor since it will be hitting the bottom of the chassis. You will have no choice but to cut more fins (Orange line) to really maximize the amount of heatsink wrapping around the motor and more importantly to make it snap in place.