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Re: Exceed Monster motors.
I have the 160 in hand now. I have the x-mount and prop adapter on and the advertised weight went from 22+ oz to about 25.5 oz. I love the spinner that goes over the prop nut. Almost same color as the blue paint on the Yak 54 it is getting mounted on.
I think that this motor and 2 5S 4900 Zippy Rhinos are going to make the Yak fairly heavy . I had initially ordered a motor from Hong Kong but it seems to have ripped it's way out of the packaging on the way here. They are supposed to be reshipping. That s a 2450 W motor but advertized weight is 17+ oz. When that gets here I will swap out the two motors and try for the lower weight. I am hoping to get it mounted on something and try it out. RE: the Exceed 160. This motor is a lot more stout than the Turnigy SK series. It looks and feels of quality. Waiting for my real-world-testing though. |
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Florida
Joined Sep 2008
16 Posts
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Re: Exceed Monster motors.
Aramsdell:
Sorry about taking so long to get back to you. Yes the timing is set on low. If you go to Hobby City they state to set the timing on high on larger motors. I've talked to two different motors distributors, Scorpion and Little Screamers and they both state do not use high timing. Little Screamers said to set it as low as possible and Scorpion said to set it on low. If your are using the Turnigy ESC get the programming card. It makes the process a lot easier and it is relatively inexpensive. Set the timing on high and you will burn up the ESC. Ask me how I know. Hope this helps. Aramsdell, To try and keep the weight down we were going to try 3000 mah 30C batteries but since it was just a test to see how it pulled the plane I did not purchase the batteries before the motor was removed from the plane. From what i remember a 10 minute flight did not use 3000 ma out of the batteries so a 3000 mah hour battery would work fine. |
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Re: Exceed Monster motors.
OK, the Exceed 160 has run with a 21X8 electric wood prop, 100A Hobbywing HV Opto ESC and 10S 4900 pack. I started on low timing. If I advance the throttle quickly I can get the motor to screach a little for a fraction of a second. Is the Hobbywing the same as the Turnigy 100A?I'm guessing yes because the Turnigy program card works on this ESC! I guess I'll try the medium timing for a ground run-up to see if that helps.
All thoughts welcome here. I made a custom 'Y' harness with a mini Deans to charge the ESC caps. The ESC comes with a power resistor already soldered to the negative lead for this purpose. Works great, no sparks! Some numbers.... 2 5S 4900 packs that were at 4.14v/cell....about 90%+ charge. 2550 Watts and dropping fairly quickly before the voltage levels off. 67 amps to start. Tons of power. It was outside and almost dark tonight when I started it up. The motor barely warm considering. Maybe 60 deg. F. THe ESC stone cold. I could probably go to a 20 X 10 . The prop I used is made by a company , or labeled as, F>X. It's an electric wooden prop. THe tips are thin and flexible and were making some noise. probably bending. There was definately no lack of thrust. |
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Re: Exceed Monster motors.
No, I switched to soft start this afternoon to see if that would help. Not a real difference, maybe a little less screech. There isn't alot to start with but it is enough to concern me. I'd prefer none.
I'm on low timing, now on middle start setting. The ESC, while it is being exposed to 60mph sub-freezing air, barely gets up to 60 deg. The motor only a little warmer, maybe 75-80 deg. There is no cowl on it right now. I am wondering if it is worth trying middle timing. Amp draw isn't at all excessive 66 amps on 10S 4900 pack , 2450 watts. Middle timing?? |
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Florida
Joined Sep 2008
16 Posts
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Re: Exceed Monster motors.
Aramsdell,
I don't know what could be causing the schreeching. There should be someone out there with more knowledge than I have that could help you. Every time I have had the jerky start it was because the ESC was set on soft start. Is something rubbing that could be causing the noise? I have had the collar on the back of the motor bind and create a rubbing noise. Try the medium timing just monitor the motor and ESC for excessve heat. Randy. |
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Re: Exceed Monster motors.
No excessive heat especially in this weather ! I maidened the Yak 54 today. Temp around 40 and the wind 10 to 15 gusting to(according to the state weather forecast for Sanford, Maine ) 23 mph. Things were quite exciting to say the least. The screeching occurs on rapid throttle advances. I may even try high timing to see if it changes. I'm not overloading anything in the poer system yet. I have a 100A 12S ESC running on 10S, 10S 4900 battery running at about 13.5C rating. Nothing gets more than luke-warm. I guess the ESC and motor are just loosing sync so maybe high timing=more power would do it.
I'll keep you posted. The spark eliminator resistor works great on the Hobbywing 100A HV opto. I soldered a Deans mini to either side of the bat and esc. No spark. I ended up using a 3S 2100 with the CC BEC PRO 20A. I needed the weight. |
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Re: Exceed Monster motors.
I set the timing to high tonight and the 'screeching' all but disappeared. Now it is quit apparent it was the motor/esc lising sync. If I jab the throttle hard I can hear just a littleloss of sync. Think of holding the chuck on a cordless drill and running the drill and the clutch slipping, only a different pitch noise. Now it catches up in sync almost instantly. I'll check temps at field. 30 sec at 1/2 throttle with cowl on in my basement and the ESC was at maybe 95 deg. F. Not a problem.
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Florida
Joined Sep 2008
16 Posts
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Re: Exceed Monster motors.
Very interesting. I have not been able to get any large outrunner, including ducted fan motors, to run correctly on high timing. You have tought me quite a bit. Did you try changing between a soft start and a normal start to see if that made a difference?
Thanks for the info. Randy. |
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Re: Exceed Monster motors.
My friend just had this same problem with a hacker a30-28s. He uses castle phoenix esc's and we hooked it up to the computer and updated the firmware on the controller with the castle link and the problem disappeared. Love castle creations, I blew up my phoenix 45 after 3 years of hard 3D abuse and I sent it to them and they sent me a brand new one for half price. and they are made in the USA. I run most of my motors at either inbetween med. and high or high timing and never a problem. I think Castle recommends no bullet connectors to the motor also.
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Re: Exceed Monster motors.
Nibbles, Are you 2 nibbles? THen you would Byte. Sorry old computer joke. I run my Scorpion 4025-1100 heli motor on high timing. You get the most power and torque.. I got an idea that I wasn't getting enough torque for the prop to follow the magnetic field so I went to high. Pretty much solved it. I'll know better when I get to fly on a warm day LOL.
I am on quick start and high timing. best it's run so far. And it runs NICE. It was running a little worse right after its maiden. Seems Exceeds shafts MAY not be up to snuff. I removed the motor and gently tapped the old shaft out of it. I installed a piece of 10mm heli shaft in its place. EVEN that wasn't ground perfectly. I had to slide it back and forth in the bearings until it was a really tight fit into all three bearings. I marked it there and cut both ends to size. I was concerned that this motor might have a weak end-bell to shaft mounting problem like Turnigy SK's. The SK's don't have enough material in that area and bend when the prop exerts high loads against the end-bell and consequently to the shaft. The magnets hit and...... Well anyway , 10mm heli shafts are easy to find here. Cut with a Dremel. |
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Re: Exceed Monster motors.
Just flew with the 'new' shaft and motor on high timing, quick-start. It was about 40 deg so the motor never even warmed up. the esc was barely more than cool after a minute on the ground. I don't think there'll be any problems with this set-up. I still get some prop tip noise throughout the flight. The F>X (really, that is what is on the prop) 21 X 8 has thin and narrow tips that flex easily so I will be changing that out the moment it gets dinged. The Yak is flying so well that may neve happen!
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Re: Exceed Monster motors.
I checked the amps today. I didn't check after changing the timing last week. By going to high timing my amps actually went DOWN! Now at 61 WOT static on the ground. It was 66 on mid timing.
Still liking this motor. |
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Re: Exceed Monster motors.
I just got a new motor today. It's a 6354-250kv. Falls in between the Exceed-or anyone else's- 110 and 160 size. I guess it could be called a 140. 2450 W , 10S , 10 mm shaft, 17.1 oz before prop adapter. The 160 was 22oz. without adapter. Came with a nice pair of prop adapters for either bell or shaft mount. They both have blue, anodized spinners that cover the prop-nut. I'll be testing sometime soon.
If this motor can suck enough power from my 10S pack I MAY replace the 160. Of course then I'm tail-heavy and will want to lose one elevator servo requiring tail mods to join the halves etc....I'll never be happy as long as there is something else to try! |
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Re: Exceed Monster motors.
Quote:
Sounds like you're a brushless bargain hunter like me!! I still don't have a plane for my Exceed 160. I picked up a discontinued Hyperion brushless which is the equivalent of a 50cc gas motor. Still no plane for that one either, but will most likely stick it on a large Pitts Model 12 and run it on 12 cells. It's rated at 4000 watts with a 24X12 prop. |
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