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Old Dec 03, 2012, 10:41 AM
Registered User
Queens, NY and sometimes Orlando, FL
Joined Sep 2003
329 Posts
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Motor upgrade suggestions for F550 Hex?

My F550 Hex came with RCTimer 1000kv motors.

I've been more than satisfied with the performance and although I have yet to hit them with the temp gun, they've always been cool to the touch even after hard flying and heavy lifting (multiple GoPro cameras)

Unfortunately, I've had a couple of motors quit in the air due bad solder joints at the bullet connectors

I was able to re-solder them both times, but the wires themselves actually look way too thin and brittle and I believe they're only made up of 3 individual strands

Now, I know there are a million different options out there, but can anyone suggest a solid motor replacement that will give me the same (or better) performance without worry of a wire meltdown?

I'm running 30Amp ESC's and 4S 5000mAh packs exclusively

Since I do tend to pack some extra weight (cameras, landing gear, 3s pack for LED lighting, etc.), I may even consider a heavy lift conversion, but only if I'm able to retain the same ESC's.



Rick <===== currently grounded
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Old Dec 03, 2012, 08:07 PM
flitelab's Avatar
Canada, NS, Halifax
Joined Feb 2010
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Tiger MT2216 900kv work well on that frame with either 3s or 4s setups.
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Old Dec 03, 2012, 08:36 PM
William Okamura
Brazil
Joined Aug 2006
98 Posts
cheap alternative

http://www.hobbyking.com/hobbyking/s...50KV_265W.html
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Old Dec 03, 2012, 11:22 PM
Z06 Tony's Avatar
United States, NY, Rochester
Joined Sep 2008
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Quote:
Originally Posted by flitelab View Post
Tiger MT2216 900kv work well on that frame with either 3s or 4s setups.
+1 on the Tigers
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Old Dec 04, 2012, 06:20 AM
Registered User
Joined Oct 2012
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SunnySky V2216
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Old Dec 04, 2012, 10:24 AM
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United States, CA, Big Bear
Joined Jan 2006
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Originally Posted by ElectroDie View Post
SunnySky V2216
Yes.. Same as tigers but a lot cheaper
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Old Dec 04, 2012, 11:46 AM
Registered User
Queens, NY and sometimes Orlando, FL
Joined Sep 2003
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OK, my builder suggested that my motors were probably overworking due to the 1000kv rating and relatively high payload.

He said all of his current builds use lower 750kv units and he has yet to run into issues.

Since he had already sent me one in the past (by mistake), I figured I'd just buy 5 more and give them a shot

So I orded up a new black arm and 5 BL-2830/14 750kv RC Timer motors

I'm still iffy about the wiring, but hopefully it's true what he says about the load.

I guess I can take the leftover motors and build an F450
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Old Dec 04, 2012, 11:54 AM
flitelab's Avatar
Canada, NS, Halifax
Joined Feb 2010
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Those motors are rather large for that size frame in my opinion but will probably work. I use 2814 750kv on much bigger hex.

Edit - I guess that motors sizing is outer dimensions not stator size, so smaller than I first thought so they may be fine.
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Old Dec 04, 2012, 12:07 PM
Registered User
Queens, NY and sometimes Orlando, FL
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Originally Posted by flitelab View Post
Those motors are rather large for that size frame in my opinion but will probably work. I use 2814 750kv on much bigger hex.
Really?

They actually look tiny in comparison to the stock DJI motors
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Old Dec 04, 2012, 12:08 PM
flitelab's Avatar
Canada, NS, Halifax
Joined Feb 2010
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Quote:
Originally Posted by 98 SNAKE EATER View Post
Really?

They actually look tiny in comparison to the stock DJI motors
Yes, sorry I assumed that was stator size at first but it is overall size. Various manufacturers use different sizing so it gets confusing. A typical 2830 motor measured by stator would be too big for an F550 frame but those should be ok.

I'd still personally go with the Tiger MT2216s but everyone has different ideas on what is best.
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Old Dec 04, 2012, 12:10 PM
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United States, CA, Big Bear
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You will have to go up on prop size also imho
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Old Dec 04, 2012, 12:15 PM
flitelab's Avatar
Canada, NS, Halifax
Joined Feb 2010
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Yes on the 750kv motors you'll no doubt need to go 4S and larger props that you are running now.

What size props were you using on the old motors? 4S on 1000kv would have been a lot so no wonder it was causing issues.
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Old Dec 14, 2012, 09:35 PM
Westland Michigan.
Joined Jan 2012
103 Posts
Quote:
Originally Posted by 98 SNAKE EATER View Post
OK, my builder suggested that my motors were probably overworking due to the 1000kv rating and relatively high payload.

He said all of his current builds use lower 750kv units and he has yet to run into issues.

Since he had already sent me one in the past (by mistake), I figured I'd just buy 5 more and give them a shot

So I orded up a new black arm and 5 BL-2830/14 750kv RC Timer motors

I'm still iffy about the wiring, but hopefully it's true what he says about the load.

I guess I can take the leftover motors and build an F450
I use 2830/14 750kv in this monster and they work fine

DJI Naza GPS Homebuilt Failsafe (6 min 45 sec)
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Old Dec 15, 2012, 01:57 AM
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Queens, NY and sometimes Orlando, FL
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Originally Posted by mikemijal View Post
I use 2830/14 750kv in this monster and they work fine

http://www.youtube.com/watch?v=r2lbf...yer_detailpage


Sweet!!

Are those RCTimer motors though?

Also, would you suggest going with 3-bladed props for an F550?
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Old Dec 15, 2012, 06:49 AM
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Israel, Adi
Joined May 2006
136 Posts
How are these?
http://www.rctimer.com/index.php?gOo...4&productname=
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