Crystalyte X5305 or HS3540

[Stealthbike]

Hi guys
Im interested in a X5305 or HS3540 but i dont know which one.
I want to use them at 72V on about 4,5KW with a Lyen controller in 26" rim.
I live in the mountains so i want to use it to drive up heigh with it, which one will overheat further?
At first I thinked that the 5305 is the motor with the most torque but I saw that the HS3540 has more.
which one would you recomend for me guys?

thanks for your replyes

 

[Nanoha]

5305 any day, hs35 wouldn't survive very long at those power levels :?

 

[sflorlando]

Yes I agree, I HAD a hs3540 that I ran at that voltage and amps. Was a fun but expensive 5 minute ride.

 

[nicobie]

For your use I think you'd be happier with the HT3525. Check out on the simulator how long each motor will run full throttle before burning up.

BTW... Good luck getting a 5305. They aren't made anymore.

 

[rojitor]

I have 5306 and hs, the old x5 series were tough and reliable yet quite expensive and heavy weight, the hs is lighter and cheaper but has some problems, the wire tends to be cut in the axle (there's some threads explaining a mod to solve that) and the heat is a big problem at high voltages, many of us have drilled the side covers to fix that (drbass has a video about it) it's not easy to say 100% which is better, what i can tell for sure is that 5305 is almost extinct and hs is available. Your choice.

 

[Stealthbike]

i have now checked the diagram of the 5305 and the ht3525 there i saw that the ht overheats a bit further, but when the 5305 isnt available anymore i have to buy the ht

 

[pwbset]

but when the 5305 isnt available anymore i have to buy the ht

http://lyen.com

Scroll to the bottom:

"Crystalyte 5305 v2/Phoenix Brute II (sensored rear, silver color) $349"

There has been some confusion whether that's actually a 5305 or like a HT3525 though... "v2". If you pounce let us know what you actually got. You'd think after years and years Electricrider.com would follow the same naming conventions as everyone else. :lol:

 

[Stealthbike]

I have now checked the diagram HS 3540 vs HT3525 again.
When I put the throttle of the HS3540 down that its as fast as the HT, then all the other thing are identically with the HT.
Only the torque at low speed is on the HS a bit lower, about 15Nm on dead stop.
Shouldnt I get a HS3540, so I have the possibility to go on the flat very fast, and on the hill I put the throttle to 70percent, because then I have
the same time befor overheating as the HT version.
If the X5305 is available in the summer holidays as pwbset said, I will buy this one.

 

[neptronix]

4.5kW - peak, or constant?

The power handling capability of the HS/HT motors was overstated from the start. They're like my magic pie, rated by the factory for around 1000w, but you can pump ridiculous levels of power into them for a limited amount of time.

4.5kW peaks will be just fine on the motor but you need to run well under 2000w constant for it to live, long term.

Dunno what the 54xx's constant power handling capability is yet, but the cromotor hubzilla is said to handle 4000w continuously, and you can pump drastically more power into it in bursts or for short periods just like any hub motor.

 

[auraslip]

The H series is a big disappointment.


On an identical setup the H series is barely more powerful than a 9c motor which only costs $150 shipped from cell_man.

And the ventilated 9c can handle power continuously that the H series can not. The H series quickly heats up where the ventilated 9c is fine.

I haven't tested the H series with ventilation, but I probably won't since oil cooling seems to show that you can pretty much run the motor at saturation continuously.


In my mind, the magic pie is superior in every way to the H series. With the exception of the slow wind speed.

 

[GCinDC]

don't ignore the "overheat in XX minutes" at the bottom right of the simulator.

2.2 minutes is not a long time...

i wish we asked justin about this number when we talked on the podcast, but i'm sure it's based on a real formula, since his whole reason to develop that simulator was to debunk the spec sheets he was getting for various motors, and are all based on hard data (i think, anyway). so my question is at what point does a motor 'overheat'? 80C, 100C, 120C, or some other range?