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CanoMod . Futaba-RC . A Main Hobbies

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e-Align T-REX 250-450-500-600 > T-REX 600 Replacmement motor for a 600
 
 
Jerry Kirwan
Senior Heliman
Location: RichmondTx

Which Scorpion motor replaces the stock BL600Xl motor on 6S???


Jerry
09-23-2008 03:31 PM
 
 
Richardmid1
Veteran
Location: Leeds, England

4025 890kv, I dont have one yet but ive already made a pinion for it from a 600N 20T pinion as I dont know anywhere that does a 20T pinion, should give around 2300 max headspeed.

Eat, sleep, 3D, crash, repair, repeat...
09-23-2008 09:00 PM
 
 
Sherman89
Heliman
Location: Morriston Fl

The 4025 is not a direct replacement for the 600XL, the frames will need to be cut as they are too narrow for the wider than stock Scorpion. readyheli.com has the Mikado mod.7 5mm 20T required for the 890kv Scorpion. I am running the 4025-890 on 6s and am going to try 8s by adding a 2s to the mix. The motor temps are fine, it the battery temps that I am trying to get down to reasonable levels with some good flight times.
09-24-2008 11:59 AM
 
 
lightningrc
Elite Veteran
Location: UK

It says every where the shaft is 6mm? or am I looking at the wrong 4025 ?
09-25-2008 10:16 PM
HOMEPAGE  
 
 
lightningrc
Elite Veteran
Location: UK

Just looked again and the 890 has a 5mm shaft the other 4035 have a 6 for some reason
09-25-2008 10:29 PM
HOMEPAGE  
 
 
Ben-T-Spindle
Elite Veteran
Location: Central Illinois

Quote 

It says every where the shaft is 6mm? or am I looking at the wrong 4025 ?

You are looking at the airplane series. Helicopter motors all start with HK. http://www.innov8tivedesigns.com/in...?cPath=21_25_68


The HK4020 and HK4025 have 5mm shafts. The HK4035 has interchangeable shafts so you can put in a 5mm, 6mm, or 8mm shaft.

My HK4025 has large bearings and an 8mm internal shaft that is reduced to 5mm after it comes out of the lower bearing.




... BTS
09-26-2008 12:21 AM
 
 
cub2000
Veteran
Location: Massachusetts

I am also debating this myself. Like someone previously said, there's no direct replacement of a Scorpion motor for the 600XL. Besides, cutting the frames to fit the motor is probably not what I want to do to my frames. I also heard that a NEU motor is a direct replacement on 6s, but then the bearings on it are of bad quality.

So I may end up getting the new Align 600XL 1700kv. They got the "Japanese made high-speed ball bearings"

09-26-2008 02:18 AM
 
 
Jerry Kirwan
Senior Heliman
Location: RichmondTx

What is the difference between the 600 XL 1650 and the 1700 besides the obvious 50 Kv?

Jerry
09-26-2008 04:07 AM
 
 
Sherman89
Heliman
Location: Morriston Fl

I have done direct comparisons of the 4025-890 and the Align 1700kv(I have 2 heli's), the 890 runs 20deg cooler with the battery coming in 10 deg cooler. The big difference is the Scorpion has a 8 mm shaft which requires larger bearings, the 890kv turns at 1/2 the rpm as the 1700kv as well which means the Scorpion will last at least 2x as long at the minimum. I have logged 655 flights on 7 align motors for an average of 93. I expect to log 400-500 flights on the Scorpion. Cutting the frames is no big deal the strength is not compromised, it takes less than 5 minutes with a dremmel. The first time I did one I thought, what am I doing? The Scorpion 890 will not bog on 6s turning a 20T. At $114. the Scorpion 4025-890 is a bargain.
09-26-2008 10:29 AM
 
 
lightningrc
Elite Veteran
Location: UK

Then that looks like the motor to me as the new Align 650L to me was a complete let down
09-26-2008 11:46 AM
HOMEPAGE  
 
 
cub2000
Veteran
Location: Massachusetts

Hey Jerry,

Let me steal your thread for a minute and tell you why I am having the same debate within myself.

I had two mysterious crashes that I had completely no clue of why it happened. The bird just totally stopped listening to my sticks and dive head on to the ground during a big loop in the sky from 400 feet high. I checked the electronics movements right after the crash and everything seemed fine. I mentioned it quickly here:

http://runryder.com/helicopter/t456480p1

So I bought that new 2mm frames. I also bought this new bottom plate and even did a review here:

http://runryder.com/helicopter/t461490p1

I totally hate being crashed without knowing what went wrong and by investing in the thicker frames with an air-craft grade aluminum bottom plate, I'm thinking myself that I am going to crash again and still wouldn't know what went wrong.

I am highly suspicious of the stock Align ESC and possibly the Align 600L motor. I went on a bought a CC 85HV ESC, bought some servo replacements and thinking of getting a new motor.
09-26-2008 01:45 PM
 
 
dennis052
Senior Heliman
Location: San Diego, CA, USA

Hi Sherman89,

"The big difference is the Scorpion has a 8 mm shaft which requires larger bearings"

Are you sure the shaft is 8mm? I thought the shaft is 8mm inside the motor and 5mm starting from the bearing to the pinion. Just wondering as I don't want to order the wrong pinion.
09-26-2008 02:31 PM
 
 
lightningrc
Elite Veteran
Location: UK

Inside motor is 8mm , so it can use bigger stronger bearings , then its ground down on the output to 5mm pinion size
09-26-2008 03:37 PM
HOMEPAGE  
 
 
Ben-T-Spindle
Elite Veteran
Location: Central Illinois

Quote 

Inside motor is 8mm , so it can use bigger stronger bearings , then its ground down on the output to 5mm pinion size
This is a very big improvement in design philosophy that should definitely solve the durability problem. Scorpion is way ahead of Align on this one. Seams like Align is stuck in a rut when it comes to motor design innovations. They should stick to making helicopter kits and leave motor design to the experts.

That 8mm shaft also makes the motor run smoother and does not have that “can resonance” problem like Z-Power has. An 8mm shaft with a machined down output shaft for 5mm pinions – it doesn’t get any better than that.




... BTS
09-26-2008 03:57 PM
 
 
Sherman89
Heliman
Location: Morriston Fl

As previously stated the 4025-890 has a 8mm shaft inside which is machined down to 5 mm and I use the Mikado mod.7-5mm 20 T from readyheli.com. After going through all the Align motors I do believe the Scorpion will hang in for a much longer # of flights.
Cub 2000, I had the same thing happen to me on the motor quitting in flight and did blame the motor (align 600XL-1650) as you had happen, everything was working, it turned out to be a bad solder joint on the Dean connector on my part. Also it may be possible to be a bad joint in the battery pak it's self. Unless you saw a lot of smoke and the windings in the motor are black (I burnt up 3 align 1650kv motors) or the shaft sheared off (lost 4 1650kv's to shaft shearing) then I would look to the battery pak, Dean connector or the ESC. Usually when the ESC goes though it go out with a big fire and meltdown with nothing left but carbon( I burnt up 1-align 75a, impressive fire). I am using the CChv85 ESC with the Scorpion.
Should you go to the Scorpion motor remember to order the oil kit, the motor wants a drop of oil every 10 flights or so on the upper and lower bearings.
09-27-2008 11:13 AM
 
 
Richardmid1
Veteran
Location: Leeds, England

My Align 600XL 1650kv has only a few flights on it and it has developed an occasional screaching noise usually under load, is it on its way out? Ive always made sure the gear meshing has some play in it.

Eat, sleep, 3D, crash, repair, repeat...
09-27-2008 10:11 PM
 
 
Heli 770
Elite Veteran
Location: Lemon Grove, Ca. USA.

Bearings, needs oil or bad.
09-27-2008 10:13 PM
 
 
Richardmid1
Veteran
Location: Leeds, England

Is that why the shafts shear off because the bearings seize up?

Eat, sleep, 3D, crash, repair, repeat...
09-27-2008 10:39 PM
 
 
Heli 770
Elite Veteran
Location: Lemon Grove, Ca. USA.

I haven't heard of shafts going. But I've heard a few people complain of dry bearings in kits and motors.
09-27-2008 10:49 PM
 
 
ShadowOfSilence
Heliman
Location: Cumming, GA.

You can get a 20T pinion Mod 1 and others here:

[url=http://search.horizonhobby.com/index.jsp?sid=11CA7AB1D19A&Ne=500&Ntt=20T+Pinion&N=790]
09-28-2008 07:36 AM
 
 
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e-Align T-REX 250-450-500-600 > T-REX 600 Replacmement motor for a 600
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