1000 W Upgrade Motor Caution

[zjuggler]

I recently upgraded my stock motor to the new 1000 Watt, 1100 kv upgrade motor (H/18/11H). A few minutes into the maiden flight, I suddenly lost power and brought it in for a hard landing (luckily I only broke the skids...need to practice some more autos :oops:). The front main gear was stripped, and the motor pinion was completely out of alignment with the main gear (below it by about a centimeter). At first, I thought the pinion had slipped down, but upon closer inspection, I found that the motor shaft itself had slipped down. I found that there were two grub screws that were missing from the top area of the motor (see picture below). I suspect that these missing grub screws were what allowed the shaft to slip out.

http://home.comcast.net/~c_donahue02/motorfailure.jpg

The stock motor has two grub screws in this location. I was able to put the motor in a vice and gently ease the shaft back into place and I secured it with two spare grub screws I had. Hopefully the motor will still work...I'll try and test it soon.

If you have this motor, I suggest you inspect it carefully to make sure that these grub screws are in place and loctited before you fly it again.

--Z

[concept1]

Ouch, I will be checking mine at lunch, hopefully all will work out for you as I just love this motor.
FYI, my maiden only lasted about 3 seconds, my main gear stripped on lift off as soon as I hit idle up. I was using the old gear, it has been just fine with the "ok" gears. No wear at all. but i will be ordering the Revco gears and a 22 or 21t pinion. since I really need a stock 13t pinion with this motor and it is not availible.

[zjuggler]

Yeah...I was actually very happy with it - while it lasted :lol:

[badriM]

It is a chance that you have land whithout power. Personnaly I have upgrade my hurricane with a z power z 20 980 t/v. It is a powerfull engine and no problem after 20 flights.

[bstock]

zjuggler - what batteries are you using with this motor? THANKS for the heads up on this!!

I was thinking of trying that motor out - but I am not sure it will play nice with my 20c 2200 HXT batteries.

I am wondering if I need to stick to the stock 850kv motor for these batterys. Anyone have any thoughts on this? I would love to hear them!

Thanks - Brent

[concept1]

Brent,

I am using the Evo 2500 25c packs and get 4.5 minutes of hard flying. I also use a set of Evo 2170 25 c Packs and get about 3.5 minutes and don't fly them as hard, and they are warm 150 degrees. with the stock motor I was getting 6 minutes from both sets (I could get longer with the 2500's but to lazy to reset my timmer) I am selling one new set of 2170's since they really don't work well with this motor. I don't think the 2200 20C packs will work well with it but I did though use 20c 1800 packs once with the stock motor which was ok for 4 minutes.

I am using the stock gearing and feel I have plenty of head speed. I believe this motor would be perfect with a 13T pinion which is not availible. So I will probably try the revco gears and I am hoping this will bump flight times to 5 minutes or better and might keep pack temps down on the 2170's.

[zjuggler]

zjuggler - what batteries are you using with this motor? THANKS for the heads up on this!!

I usually run a pair of Air Thunder 3S 2200's, and occasionally a pair of Flight Power 3S 2170's. (I fly a trex 450 as well, and I like being able to fly the batteries on either). The flight times are on the short side, even with the stock motor, but at least I know that going in.

I know I'll get shorter flight times with the upgrade motor, but I really enjoyed the boost in power while it lasted! :lol:

--Z

[badriM]

ON my Zpower Z 20 980, i use two 2100 20 C. The consomption with 15 pignon teeth is 13 A in stationary and 23 A at full trottle. My pitch curve is -2 +5 +10 and -10 +5 +10 in iddle. My throttle curve is 0 25 50 75 100 and 100 75 50 75 100 in iddle.
The advantage of this engine is also the fan, after a fly he is cold not like the stock engine when after a fly is very hot.

[concept1]

I took a closer look at my motor and it is acctually diffrent? What ready heli sent me is a RCP 1000kv 35/18/11, not a 1100kv, although they look about identicle?

[Timmey]

ON my Zpower Z 20 980, i use two 2100 20 C. The consomption with 15 pignon teeth is 13 A in stationary and 23 A at full trottle. My pitch curve is -2 +5 +10 and -10 +5 +10 in iddle. My throttle curve is 0 25 50 75 100 and 100 75 50 75 100 in iddle.
The advantage of this engine is also the fan, after a fly he is cold not like the stock engine when after a fly is very hot.

Hello badriM,

iam very interested in this motor z20 kv980 engine. Which headspeed do you have with 15 pinion at 100% throttle? Do you feel this engine is much stronger than the stock motor KV850?

[badriM]

Dear Timmey,

The head speed is arround 2200 t. Z Power are good electric motor. I have three of them and have never have any problems.
If you have any question it is always pleasure to answer

You can see a digital photo of it in my hurricane

[bstock]

badriM - what kind of flight times are you getting out of that setup?

What batteries are you using?

Thanks - Brent

[badriM]

In 3d the flying time with this setup is 5 min with 2 x 2100 3s. In mix flying, cool and hard you can fly 7 min.