The Magic of Statorade Motor Coolant, Test Ride with Small Brompton Kit
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- čas přidán 25. 02. 2018
- What happens when you sustain high power levels in a hub motor? The motor gets hotter and hotter, and becomes at risk of overheating. Watch this video to see the amazing effect that just a few mL of Statorade can have on keeping the motor cool.
In the test, Justin is riding a small SAW20 Crystalyte hub on a Brompton bike with a 72V battery pack up and down the hill in Queen E park in Vancouver.
With the stock SAW20 hub, the motor temperature keeps climbing right up to 115 °C when the CA's thermal rollback reduces motor power to 600 watts. After adding 3.5 mL of Statorade, the temperature falls immediately. Running the same tests up and down the hill it doesn't get beyond 83 °C. No thermal rollback and a full 800 watts available.
The actual logged trip data can be examined from this link here:
www.ebikes.ca/tools/trip-analy...
Data from the Cycle Analyst was added to the video using the (now free) Dashware program:
www.dashware.net/
And of course more information on Statorade can be found here:
www.ebikes.ca/product-info/sta... - Věda a technologie
Impressive what Statorade can do. Even more impressive is what that little Crystalyte motor can do.
Very interesting results! my Qs205 at even 16kW keep between 20 to 30 degree lower with the Statorade and Hubsink. Both products are awsome!
Yes indeed, we distribute the hubsinks from our site as well. Actually in our next video on this front we did a test with a 9C+ motor going up the mountains in north Van running bare, with Statorade, and then with Statorade and Hubsinks. The Statorade alone does about an 80% improvement, while hubsinks add another 10-15% on top of that. I'll be posting all of these results on endless-sphere at some point, lots of great wind tunnel test data with hubsinks on lots of different motor series now (including Cromotor, Clyte H, MXUS etc)
So did you test with hubsink alone? To see how effective it is?
Since we separately measured the core to shell thermal resistance with and without Statorade, and the shell to ambient with and without hubsinks, we can predict with very high accuracy what the performance is like with just hubsinks and no fluid. For instance, the Cromotor at 300 rpm has a core to shell resistance of 0.26 deg/watt. The shell to ambient resistance at this speed with no hubsinks is 0.066 deg / watt. Shell to ambient WITH hubsinks is 0.042 deg/watt.
So total thermal resistance with no hub sinks is (0.26 + 0.066) = 0.326 deg / watt,
Total thermal resistance with hubsinks added is (0.26 + 0.042) = 0.302 deg / watt
As you see, the improvement from hubsinks alone without statorade in this case is less than 8%. It will run a bit cooler, but not much.
By comparison, if you don't add hubsinks but just add statorade, the core to shell resistance goes from 0.26 deg/watt down to 0.12 deg / watt. Add on the 0.066 deg/watt for the shell to ambient and you get a total thermal resistance of 0.186 deg/watt. That is a 75% improvement, way better than the 8% from just adding hubsinks.
Awesome results !! :)
I plan to buy from Grinn my motor and related equipment for my pedicab, because your organization has the most in-depth tutorial content compared to other sellers. Folk at Grinn seem to be involved in R&D, not only sales.
Amazing dude!!!
Amazing bro ! Im buying more statoraid and sealing up my NSM MOTOR with silicon.
Yeah the small NSM motors are quite prone to overheating on hill climbs so they can really use it! Be sure to re-seal both side plates since by default Crystalyte doesn't do a very good job on the side cover sealing.
I installed a sabvoton 100 amps on my 3000w motor and it came so hot that it unsoldered the green hall wire 2 times. I just put back my 60 amps controller and will test it tomorrow if it still do it.
Hi Grin,
What capacity battery are you running on the Brompton? I just bought a SAW from you guys and am trying to figure what battery would match it. It’s a folding bike so the battery’s physical foot print should be smaller.
Thanks!
HeyJohn, for this particular video we were running 6 LiGos in a 72V 8Ah arrangement since we were also doing some 72V experiments for the customer. But in general when I'm using our shop Brompton it's with 4 LiGo's in parallel, for 36V 11Ah, which gives about 40km of assisted range. There are many small waterbottle format batteries that are in this size/capacity range if the LiGo's are out of your budget.
Hello, I've been thinking about buying lightweight ebike but I don't know which one. I really like the Hummingbird ebike because it's featherweight and will be easy to fold and bring up and down stairs and on the subway. They use a 250 watt Zehus all in one motor/battery hub. It's super compact but the weight is entirely on the rear of the bike. Coupled with your body weight the bike isn't balanced. The benefit is that there is no external battery. What's your thoughts. Is there a way to take a Hummingbird, a Brompton T-Line, or a Birdy and make them into ebikes without external battery packs?
I ordered some but haven't heard back!
Just ordered some from Amazon
This is the test i wanted to see hell yeah. Also looking to see if my atf filled 1500w bike will last
The hub with ATF fill should last just fine as a hub itself goes. But the main thing people doing that have had to reckon with is the gradual leaking / seepage of the oil out the bearings or wires which becomes a cleaning headache. Especially if any gets on your disk rotor.
@@GrinTechnologies im a car nut so i used sealent ment for atf had it sealed and filled for 2 weeks as wire brushed then sealed
So good to hear that u recon it will last done 60km so far. Just building my 22ah 44v battery pack atm
Im like u i innovate and currently there is no local bike shops so im gonna make them myself even start importing some as im currently learning. To make batterys packs at industrial quantity included recycling 18650s. I have a very good understanding of electronics to the point. I will do exstensive mods that are hard to do for most people
E- bike mythbusters: It really works!
How often would this need to be reapplied to the motor, and is there any risk from build-up?
Assuming that the hub is properly sealed, then it can last for many 10's of thousands of kilometers. See this test result post here
endless-sphere.com/forums/viewtopic.php?p=1375382#p1375382
I know saw20 motor is not a free wheeling motor like geared motors. How much resistance is there without power?
About 0.4 Newton-meters worth of resistance
Will the coolant hurt the motor over time but I love what you doing did you make it so you can't burn the motor up which is good to know and I just don't know what size bike to buy where to start
Not the coolant, but the moment you drill it you loose hermeticity and you open you engine to moisture and dirt. A better solution is installing a circular heat-sink outside the motor. There are kits that you can buy for every type of motor.
We haven't seen any negative consequences of Statorade in the motors so far except in a few cases where people have added excessive amounts and gotten some in the bearings which will like any thin oil product thin the grease.
FWIW, Direct drive motors are generally not hermetically sealed to begin with, they will always find a way of breathing as the motor gets hot and cool and results in a large pressure differential that will equalize one way or the other. The hole for injecting statorade is threaded so we put a small screw in afterwords to plug it.
If you put heatsinks on the outside of the motor without adding a fluid bridge like Statorade or ATF etc,, the effects on increased cooling will be very minimal. About 80-85% of the thermal resistance in an ebike hub motor is on the inside, from the stator to the motor shell. The motor shell can conduct heat to ambient air very effectively even without additional fins on the outside. Adding them doesn't hurt, but it's not where the bottle neck is.
Okay for heat, but you're obviously "spending" range by e-leakage through the statorade. I assume it's electrically conductive more than air is. Could you address this?
The fluid has no electrical conductivity; it's an insulator (synthetic oil based) and doesn't have any electrical properties that affect the motor. It's only the thermal conductivity that comes into play.
Did you swap out the battery on the second round? 🤔 I guess I'll find out how's it going to perform 🙃 I just put 5ml in both of my 1000w can't wait for the test ride 😁👍.
Larger Direct Drives should have 6-8ml. You'll be fine with 5 though... The battery was the same the whole test.
Did i just see an electric Penny Farthing bicycle at 1:05 if it is electric, thats pretty dope lol
Ha yup! I was wondering when someone was going to comment on this ;-) Full build details for those interested at:
endless-sphere.com/forums/viewtopic.php?t=89820
Is statorade good enough by itself? Or should i add the heatsinks with it. Cant seem to decide.
Statorade by itself improves the thermal conductivity by 80-100% (ie double the heatflow). Hubsink fins add another 10-20% on top of that.
@@GrinTechnologies hmm I just made an account on your website and in really interested in trying to statorade and possibly the heat sink hubs too.
I run a 52v battery on a 48v set up over volted. Will the statorade still help with the heat?
Umm is this an unlisted video. I even double checked its not in the videos list checked twice. As i would have watched this alot now to the vid
What’s the top speed with the 72v set up???
It's pretty peppy for a little bike at 72V. Top speed would depend on your aerodynamic drag position but can easily hit 55 kph in a tuck.
How often should you reapply statorade ?
So long as the motor is fully sealed at the side plates then almost never. We did lab testing running at the equilvalent of over 65,000 km with the motor at 120 degrees Celsius and and had almost no reduction in performance, see endless-sphere.com/forums/viewtopic.php?f=2&t=48753&p=1375382&#p1375382
so 800w is okay setting for this motor with statorade?
Surprisingly yes, even a little motor like this can readily do 800W with the statorade coolant.
@@GrinTechnologies
Will statorade work with bigger 26 inch 48v 1500w motor?
the song used is Barış Manço - Ölüm Allah'ın Emri
czcams.com/video/CsMUPyLTgXE/video.html&start_radio=1&t=0
How much is the price I m from chile how much will be with sending Include ?
I love riding up this hill, and now I am resisting the urge to drill a hole in my motor.
You only did 3 runs after injecting statorade, before the statorade you did 5 runs thats why it got hotter, you should do atleast 5 runs after statorade so we can actually know if it works or not
Hey James, what you'll notice is that after each run with the Statorade the motor wasn't getting any hotter, in fact it was even getting a little bit cooler. So we know at that point it is at steady state temperature and won't change with additional runs. The idea of the test is to keep going up and down until steady state temperature was reached (ie no difference between one run and the next).
If I had started the run with Statorade with a motor that was cold to begin with, it would have taken a few more runs to reach 84 degrees celcius but it would have leveled off at that same final temperature.
There's no doubt statorade works but you still could have done an equal number of runs for a fair apples to apples comparison imo
@Block Chain To make the observation that the number of runs wasn't equal is fair enough, but it was explained why. For you to make the comment they are scumbags, makes you an asshole!
1:05 i am the only one who noticed that?
Ha ha, yes we've been waiting for someone to finally catch this! More glory shots of that project here:
czcams.com/video/GJgHl_CaWE4/video.html
If you were trying to drown out voices with your background music, you succeeded. If this was an ad for your product, you should be fired.
Luckily it's not an ad for a product but a demonstration of a neat technology, so no heads will have to roll here!
Lmao
Omg, how annoying is the damn music!!!😢 Made watching the vid painful...
Cheers though! 👍