Anyone tried the Losi 1/8 Xcelorin 1300kv motors yet?

[nuz69]

Theses motors heat a lot compared to tekins and Castle motors... I suspect them to be too small and not efficient enough for 1:8 scale application.
The ESC quality is even worse !

[scarletboa]

Originally Posted by nuz69

Theses motors heat a lot compared to tekins and Castle motors... I suspect them to be too small and not efficient enough for 1:8 scale application.
The ESC quality is even worse !

buggies and truggies are harder on motors due to the center diff. most monster trucks can't put as much power to the ground, so the amp draw stays a little lower. this is speaking from experience, as i have a BL buggy, truggy, and 2 MTs.

i think that motor will be great for what you want to use it for, as long as you watch temps and gear for under 45mph.

[sikeston34m]

Originally Posted by scarletboa

buggies and truggies are harder on motors due to the center diff. most monster trucks can't put as much power to the ground, so the amp draw stays a little lower. this is speaking from experience, as i have a BL buggy, truggy, and 2 MTs.

i think that motor will be great for what you want to use it for, as long as you watch temps and gear for under 45mph.

I'm really thinking about gearing for around 40mph. I like the low end grunt for bashing.

Setup for 6S and geared for 40mph could be surprisingly efficient.

[sikeston34m]

I got the motor installed in my E Revo today.

18/52 using Mod 1 is the gearing.

I wasn't very impressed with a 6S run.

Power wasn't awesome, but fairly decent.

Temps were well in hand up to the 5 minute mark. The 10 minute mark found the motor warming up, almost too warm for the finger touch test.

To most people, this isn't pushing motor temps. But to me, if it gets THAT hot, alot of power is being lost to generate that heat.

In the ESC settings, I found motor timing set at low.

So 2 problems:

This setup is undergeared and the timing is too low.

I'll correct these things and give it another go.

[nuz69]

Hmmm.... IMO 6S 1300Kv 40mph in a 10lbs (or more) Erevo isn't undergeared at all...
We tested this motor in 1:8 buggies, geared for 40mph, and it's heating very fast compared to other standard motor, so it's not a surprise if it heats in your Monster Truck. Gearing up will probably fried it, watch your temps man, and buy a temp probe!
NuZ.

[sikeston34m]

Originally Posted by nuz69

Hmmm.... IMO 6S 1300Kv 40mph in a 10lbs (or more) Erevo isn't undergeared at all...
We tested this motor in 1:8 buggies, geared for 40mph, and it's heating very fast compared to other standard motor, so it's not a surprise if it heats in your Monster Truck. Gearing up will probably fried it, watch your temps man, and buy a temp probe!
NuZ.

18/52 is geared for 32mph on 6S in the E Revo.

With 4 pole motors, it has been my experience, that best performance comes when you put the right amount of load on them.

Undergeared, the motor just tops out.

To take advantage of the added torque a 4 pole makes, higher gearing is required.

I'm really looking for performance comparable to the Medusa Motors that I've played with.

I had a Medusa 36-60-1500kv in this truck geared 22/40 on 4S and it did GREAT!

However, there could be a big efficiency difference between the two.

Motors are not all created equal, that's for sure.

[florianz]

thanks for posting MY pics above...
http://www.rc-monster.com/forum/show...light=xcelorin

the 1700 I had is at least as good as my 3680-1600 medusa racing. the medusa is good, but the losi has better features, like the massive bearings. both motors are used on 5s, plenty of torque, but I think the type of torque the losi had is kind of better. hard to describe, but it felt better.

and yes, 4-pole motors need load to perform well, otherwise performance is poor and the motor gets too hot.

go for medium timing, at least. you will experience a BIG difference in performance. believe me, I had that experience too. 4.pole motors require timing of around 15 deg.

motor got a little hot without cooling, you need a losi-heatsink.

they are great motors and under-rated, as people only buy stuff that is well known and common... like that 2200 cc neu...

[nuz69]

Originally Posted by scarletboa

buggies and truggies are harder on motors due to the center diff. most monster trucks can't put as much power to the ground, so the amp draw stays a little lower. this is speaking from experience, as i have a BL buggy, truggy, and 2 MTs.

i think that motor will be great for what you want to use it for, as long as you watch temps and gear for under 45mph.

Average, like you said buggies and truggies put more power to the ground, but they put it smoothly, without amp spikes. Don't forget that Buggies and truggies are lighter than MTs too.
When you go full throttle with a MT from 0 doing a standing backflip, you generate a strong current spike, where a buggy or a truggy will accelerate slowly due to the center diff making the front wheels spinning free without grip, so without power. So the spikes are attenuated with a CD...
For theses reasons, and considerating the weight difference I am not sure you are right.