Smoked the LRK motor......

[Russ McC]

I would say no. It’s more likely we are using these batteries beyond there limit = shorter life. I can’t see how charger balance would affect this unless you run the batts down to there lower limits which I don’t.

[fitenfyr]

Good to hear.
Of all the people I know you probably will/did wear out a set of packs first. :D

[ScotY]

Hey Russ,
Can you tell us more about the kevlar wrapped rotors? Hadn't heard anything about that until you mentioned it.

[Russ McC]

Hi Scoty,

The rotor in the hacker is a stack of washer like magnets that are glued together and to the shaft. These magnets would erode around there edges, they would also get hot causing them to come un-glued from each other and the shaft. These magnets are now wrapped in a Kevlar tube giving them protection from heat and erosion as well as increasing the gluing surface area.

[ScotY]

Hi Russ,

That's very cool! Glad to see Hacker is working on improving the reliability of their motors. Do you know when they started doing this mod?

[Russ McC]

I’m not shire, maybe a couple of months.

[misskimo]

hey , 13s3ps is great , that 32-4 in my setup was bad to the bone , 14 minutes at around 2100 head, at 100% , at first I had a 92t main gear on there that suppose to have been a 95t . but that pop was a kick when you plug 13 up to the schulze , huh! Chris ? now I will have 10s on there just to see what which is better , but it might be a while till I get to try it since its snowing like crazy now , Tony




So...Guess the Actro is now the king of the outrunners for the ION huh? :D :D :D
Well not trying to get anyones undies in a wad or anything so nobody take this personal please.
Maybe we are just asking too much of the motors on the market right now?
Also I think the real key to success with these is higher voltages.
Somebody slap a Schulze controller in there and run one of the Actro's on 13S. :D

[ChrisS]

"Somebody slap a Schulze controller in there and run one of the Actro's on 13S."

We did this, well only 12S, and it works great. We used a 32-4 geared 10:1 and with the Schulze 40-160, you could dial the speed to wherever you wanted and not be afraid of thermalling the control. Big problem though...$1000 motor and speed control combo.

Chris

[DrScoles]

OUCH $1000 heheehe

BUT, I'm already into this stuff for so much, what would be the differenece! Which controller exactly is it Chris?? If I can get bulletproof for a few hundred dollars, I'm there... Is TP making custom packs??

Mike

[ChrisS]

The controller is the Shultze 40-160, I think Icare in Canada has a couple to sell right now. If you call Charlie and ask really nice, I bet he would make you a couple packs of 6S3P's or maybe, something else...

So you know, this controller measures about the same as the average wallet in dimensions and weighs like 7 ounces. It uses TO220 sized FET's. It has four 12 guage power wires and six gold bullet connectors for the motor wires...big stuff. It should be able to handle 14S, if your so inclined and at 160 amps, well, you should be able to start your truck with it.

Chris

[DrScoles]

Now how hard would it be to go back and forth between 5s and 6s packs?? I know on the hacker ESC you'd have to reprogram it each time... Can't these things recognize what type of pack they are like on our chargers???

How many mah would 6s3p x2 be??

I got a Fury for sale, if it goes, I'll use the proceeds towards a new ESC:-)

Mike

[ChrisS]

If you were going to go back and forth between the two voltages, what I would do is to set the ESC for Nicd/NiMH operation. This way it will not use a lower threshold cutoff voltage. Then set your gear ratio for maximum headspeed with the higher voltage. Running the lower voltage packs will then yield a slower more sport-like performance level and longer run times. I do this sometimes with 10S and 8S packs, it's nice to be able to hover around at a low relaxing headspeed.

The Hacker speed control, as you know, cannot do the 12S thing anyway...yet. They are working on a bigger one that will.

The Schultze ESC has no lower voltage threshold cutoff option.

A pack of 12S3P TP's would be 6000mAHr. Or 273 watt hours as compared to the 10S4P (8000mAHr) that most use which are 304 watt hours. You save a little weight and gain a little bit of efficiency. Bear in mind though that if you are going to run a higher voltage, you need to run a lower current, keep the power levels the same. Most of these motors we are using are pretty much at their limits at 2500 watts.

Do not run a higher voltage on the Hacker as it is at it's maximum efficient rpm limit on 10S. Any more and it will become less efficient and start to heat up, eventually leading to destruction. If you want to use a Hacker, let me know and I will calculate what number of winds to use.

Chris

[DrScoles]

I talked to Jochen, and he says LRK will have no problem with higher voltage... 6000's would be perfect... Particularly if they're lighter..:-)



I'm knee deep in taking a $200 shogun and adding $3-400 worth of upgrades to it.... Ion will have to wait until I have the motors and the $$$...hehe

Mike

[misskimo]

hey , Chris , that schulze 160 sounds great , Im in the process of dropping 1 cell with my fury to run 12s , whats gears are you useing ? I was going to use 2 5s3p and 1 2s3p in the front like the 3s3p I had , that should work out fine on this conversion , how did the temps work out on the 32-4? did that show to have about the same power as the 32-3 ? man after I left Fla. back in June and had the correct gearing , that motor didnt bat a eye on full climb outs , my buddy that flys nothing but gas planes that you met, like to crapped in his britches, when I was hovering in front of us and hammered down on that collective , hes a preacher and he said DAMN , he had a whole new out look on my electrics from then on :lol:

Tony