Who thinks 450MX is too weak?

[blue92ehsi]

Do the majority of you fly the stock 450 pro motor or is pretty much everyone running a scorpion?

I feel like it could use a little more balls.

Scorpion vs 3s 460MX?

[jetblue2135]

I popped a 460MX in my DFC Pro....had the 450MX in there, both of 6S. I think the 450MX is fine on power, not sure how it is on 3S. I have been flying on 6S for about 3 years now and there's no way I would go back.

[blue92ehsi]

Do you run one 6s pack or 2 3s packs side by side or otherwise arranged? I didn't know the 450mx can take 6s

[Yfbb]

It can't. There is a 6s version. Then again, if you can find a 6 tooth pinion somewhere, it will work on 6s. As long as motor doesn't get hot, and you can gear it properly, there really is no practical restriction on voltage. Personally, I find the 450mx series kind of weak, but It may have something to do with the crappy solder I use and the fact that align motors use small connectors.

[DoubleCH]

There are 3S (3400kV) and 6S (1750kV IIRC) versions of 450MX.

Weak is a relative term. I don't (or am skilful enough to) smack 3D so my 3S 450MX is fine for my needs. I actually changed out the stock 15T pinion to 14T and run low 2970HS governed because I started off with 15T and 3400HS governed and found it a bit fast for my taste.
Here's a flight with 2970HS governed I posted before in another thread.
https://www.helifreak.com/showpost.p...28&postcount=4

[DoubleCH]

Originally Posted by Yfbb

Then again, if you can find a 6 tooth pinion somewhere, it will work on 6s. As long as motor doesn't get hot, and you can gear it properly, there really is no practical restriction on voltage.

Not really. First, anything below 9T is bad on efficiency any mod pinion because of simple geometry issue. Second, even if you lower gearing to compensate, you're still overdriving the motor. There's a certain linear-speed range a 6-pole motor will run efficiently. Running a 3S motor with 6S pretty much guarantees it runs way out of its efficient range.

[blue92ehsi]

I know the 460mx has a 3s and 6s version. Didn't know the 450 did. I'm either gonna try a scorpion motor but wanted to keep the 460mx 3s in mind.

Now I'm open to try a 4s pack. That extra 4v might give it the extra edge it needs. What would I need to change tho?

[DoubleCH]

Running 4S packs with 3S motor assuming with governor is a quick way to easily boost performance like overclocking PCs but it won't be as efficient as converting full system to 6S. If you think about converting to 4S packs, perhaps consider converting entire system to 6S.

[xrayray]

try the scorpion 2221-6 with a 12T pinion using 3s. Its pretty high headspeed but low gearing for that extra torque. Or 11T pinion it should be pretty good I'm hoping to test one out soon on my 450.

[jetblue2135]

The 450MX is 3400kv for 3S, and 1700kv for 6S (1700kv is what I had in there).
The 460MX is 3200kv for 3S, and 1800kv for 6S (1800kv is what I have in my DFC Pro now)

I prefer the 460MX. I also run the scorpion 2520-1880KV on 6S in my 450L and it is by far the most powerful motor I have ever flown in a 450, and I have tried out a lot of motors.

[blue92ehsi]

I think for simplicity I'll get the 2222-6 and see how that does

[Luigi_tuga]

Originally Posted by blue92ehsi

I think for simplicity I'll get the 2222-6 and see how that does

It wont be kind to your lipos, and will require high C packs.
But it's the typical motor for HS addicts.
If it's performance you're after, 6s is the most cost effective solution, doesn't require so expensive packs and they will typically last longer.

[jetblue2135]

Originally Posted by blue92ehsi

I think for simplicity I'll get the 2222-6 and see how that does

Make sure you get high C rated lipos if you are going with that motor! I have that motor, don't use it anymore because I am running 6S, but that motor puffed all my 35 and 45C lipos.

[blue92ehsi]

Hmm might be cheaper to just get a 6s motor then cause I already have 6 lipos. What do I need besides the motor? I assume a 6s esc

[jetblue2135]

IMO I would definitely go the 6S route. It will be easier on lipos, best and most efficient performance, and you do not need high C rating lipos on 6S...30 or 40C will be fine. I don't know what esc you are using but you will need to get a 6S capable esc. I use Castle ICE and Edge 50's in my 6S 450 size helis, both the lit version and the regular. Also, you can get one of those YEP 45 esc from Hobbyking, I have one of those as well and they work great and only cost around $24.

[blue92ehsi]

I'm still running the stock one. Only thing I'm curious about is how you fit 2 lipo packs under the canopy lol or are the 6s single packs not that much bigger?

EDIT: oh I see the packs are less mah around 1300 since the motor has half the kv it draws less current

[jetblue2135]

It's one 6S lipo 1200+mah and they are the same size as the 3S lipos.

[ekan_rotor]

To compare a 6s motor to a 3s, motors must be of the same brand and half KV. Align, KDE, Savox for example, who fit to this case, have 6s motors of half KV and max ampere to coresponding 3s but same power output and almost four times higher copper resistance.
So when you compare apples to apples, for the same HS and gearing there is now performance gain. The argument of less heat loss is fault too, due to 4 times higher resistance.

6s and 3s lipos should have the same C rate for equal performance. Then the cost is almost the same.
But 6s lipos in the market have more than half the capacity of coresponding 3s (1200~1300mAh for 6s against 2200mAh of 3s) so for the same C rating can provide more relaxed the half required amperes. Additional they have only double internal resistance, so for half current, have half heat generation. So they last longer.
Performance wise 6s are 20~30 gr hevier than 3s so for the above mentioned motors there is no gain.

[blue92ehsi]

Can you sum that up in a way I can understand lol

[jetblue2135]

blue92ehsi-
That above post is incorrect. A 30C 6S lipo has the same or or more power than a 65C+ 3S setup. Much better performance on 6S all around, hands down. For someone to say that there is no difference in performance 6S vs 3S then they obviously don't know what they are talking about. I won't go down that road, that has been discussed on here plenty!

Moving on, have you tried a larger pinion with your current motor? Up the pinion one and see how you like it? Just a thought.