Upgrading my F550, need good 6S motor for 14-15" props

A

aForcefulThrust

Member
Looking to extend the arms on my F550, and I need a good motor recommendation. I'm going to use the RC/Timer arm extensions and these 40A ESC's. I want to run 2x5000mAh packs in parallel, use 15" CF props, and lift 4000-4500 grams.

I've got a few motors I'm considering, but would really like some input from you guys. Here are a few of the ones I'm looking at. I think between 350-400KV range would be best.
HL W48-22 390KV
SunnySky X4108S 380KV
SunnySky X4112S 400kv

I'm not sure what size I should get, Would the HL and 4108 sunnysky be a good size? or would a bigger motor like the 4112 sunnysky be better? Any tips/recommendations appreciated
 


A

aForcefulThrust

Member
Not interested in that over-priced mod.. The RCtimer arms will do the same thing just as good. T-motors are a little over-priced too.. How about the motors would the 4108 be a good ssize for DJI style 15" CF props?
 

kloner

kloner

Aerial DP
You most likely want t motor 3515 I'm starting out with kw4 on 5s but will most likely upgrade pretty quick. There is a new motor out from Patrick at AMP called epic 500. Pretty much his choice in the motor prop your asking about. They look a lot like these kw8 pro I got. But the kw are 700 kv. Too high for dji controllers IMO

Amp motors are made for dji controllers to be happy
 





A

aForcefulThrust

Member
Thanks for the ideas guys. There are 3 main things i'm looking at with the motors I think are important: Amp draw(flight time), thrust, and motor temp when using 15x5.5 CF props. I know cooler is better, but I'm not sure how hot is to hot? I want to keep amp draw low to have a long flight time, and get about 2000g thrust per motor. So far the SunnySky X4108S 380KV looks best with those specs, but i'm thinking it's to small of a motor for the size craft I will have. I don't have a huge budget, and I also have to buy the 6s packs, because mine are all 4s now. So 100/motor isn't really good for me, 50-60 is more like it.

These SunnySky X4112S 320kv look pretty good too, and probably a better size motor for my hex. Lower amp draw, lower temps.. Just wish a little higher KV rating.
Also the RC/Timer 4114-350KV looks pretty good, very similar to S800 motors I think.

Those turnigy motors look nice, I didn't know about them. I wish they had them in the 380kv range. Definately a good option though. I'll be ordering sometime late tomorrow probably, bouncing all these motors around in my head lol. Keep the ideas coming!
 



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