hobbywing Hobbywing QUICRUN Fusion Pro 2300kV - 2S or 3S?

[Rocks n Roots]

Hi all,
My first post on here - I've been on the rocks for a few years now but always using Budget Brushed Motors:
Holmes Hobbies CrawlMaster Sport 550's / TrailMaster Sport 550's Element Reedy 5-Slot 540

I have many 2S LiPo's but I have seen how Brushed Motors work better on 3S LiPo's - As John Holmes says "Volt-up and Gear-down"
(My understanding is that brushed motors are more efficient at higher RPM's and give better slow start-up and obstacle climbing when you're geared down)

Now I have a HW QR Fusion Pro 2300Kv
Can you cast any light as to whether this motor crawls just as well on 2S as 3S, without overheating issues?

Thanks for the benefit of your experiences here...

Larry C

[Stormbringer]

I use that fusion in my TRX6 and TRX4 on both 2s and 3s and its never overheated on either voltage

Being sensored its really smooth on either voltage but i do get slightly longer runtimes on 3s over the 2s 

Whether thats because im not using as much throttle for the same road speed i dont know

heres a wee vid of it in action using cruise control it adjusts throttle to keep same speed on inclines etc

 

[steephill]

2 or 3s is fine. I have a few fusion pros and mainly crawl on 3s.

I can't see you not being impressed with fusion Pro. They're super smooth and loads of torque. 

[m4inbrain]

5 hours ago, Rocks n Roots said:

Now I have a HW QR Fusion Pro 2300Kv
Can you cast any light as to whether this motor crawls just as well on 2S as 3S, without overheating issues?

 

Doesn't matter. Run what you have, 3s of course gives more torque/RPM, but you can crawl just fine on 2s if that's what you have.

 

There's not going to be any heat issues either, ran all my Axe R2 and Fusions on 3s, never once had a problem (which is very obvious on Fusion systems due to the overtemp protect, they shut down). 

 

If you only ever used brushed motors before, FOC based systems like the Fusion etc are going to feel like cheating. They work different than a brushed motor in the way you control them (i think by now that's setting-dependent) - the best way i could come up with to explain is, you don't control throttle on these. You control wheel speed. With a brushed motor, if you want to drive up something, you increase throttle - you don't, with a Fusion. You just keep the throttle steady, it just drives up there (increases power when the motor slows spinning etc). Equally on downhill sections, you don't brake, you just give a little throttle and it drives slowly down even 60 degree angles. 

 

It's genuinely feels like cheating compared to brushed systems. Wouldn't ever go back.

Edited May 26 by m4inbrain