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Other › What is a hot speed cont. and motor for T-rex 600 on 6 to 8s
07-08-2008 01:25 PM  9 years agoPost 1
Yellowjacket

rrApprentice

Kennewick Wa.

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What is a hot speed cont. motor and batteries for T-rex 600 on 6 to 8s?
I am putting together a 600e and I am a old nitro dude that wants to put together a hot e 3-D ship on 6 or 8s.

What are you guys running that is working?
Thanks for any info you can give

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07-08-2008 02:49 PM  9 years agoPost 2
MaxAdventure

rrVeteran

Northern CO

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Neu 1515/2Y=3750 max watts
CastleCreations HV 85 runs at 85A
juice it with an OUTRAGE XP25 8S1P 3700mAH 25C - XTREME POWER
would give you 2136rpm head speed w/11T pinion at 15.45:1 ratio on 30V
not running the combo, but looks like a hot ticket to me.

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07-08-2008 10:39 PM  9 years agoPost 3
Yellowjacket

rrApprentice

Kennewick Wa.

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We tried the castle creations HV 85 the only thing I dont't like about it is you have two options for soft start. one is really soft and ather is soft but it still takes 20 to 25 seconds to get up to speed.I know they have a software that you can buy and down load for 29.00 with a usb cord to hook up to your computer for more heli options.

We also tried the Kontronics 45 10 with the HV 85 and a 19 tooth pinion in hight gov. mode at 80% it was spinning 2400 on 6s.
The power was pretty impressive but we were only getting 3 min with evo 25 4900. The back plate came unscrewed on the 45 10 after the 3rd flight and roasted the motor. It was brand new so it will have to go back for warranty. I was told this was a fluke?

That was about the extent of my testing besides the stock junk.

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07-08-2008 11:38 PM  9 years agoPost 4
lightningrc

rrElite Veteran

UK

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8S1P 3700mAH 25C - XTREME POWER what sort of run time could you expect from this ?
MAH seems low. I was always lead to believe by having more volts would not increase your run time as it will now work harder , so if thats the case then should we really be using an 8S 4500mah or more ?
But then you have the weight.

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07-09-2008 05:42 AM  9 years agoPost 5
MaxAdventure

rrVeteran

Northern CO

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CC:
I'm currently running CC HV85 and love it. it was $20US for the USB link, and the latest software is a free download from their site. I have at least five soft to quick start settings and I don't even have the latest downloaded yet. I'm planning on replacing my other ESC's after this experiance.

volts work harder:
Watts = Volts times Amps, so if you're flying a 8lb heli that takes 2000 watts for the flying you're doing, moving up in volts will draw less amps to hit that 2000 watts, so a lower Ah battery will last longer at high volts than it does at lower volts. Other factors apply, but that is the basic equation. I haven't run the setup, so I can't give actual data.
To get a set up that works, you need the pieces to work together to deliver an efficient combo of amps * volts. Some motors want to be geared low for high voltage, some want to be geared high for amps.

8S 25C 3.7Ah run time:
if we assume a usable Ah of 2.96 with 80% capacity, I think you're going to be around 5min drawing 40 amps average.
one really needs to set it up on the machine and fly, check the amps. Too many variables: Ambient temp, air density, blades, drive train, pilot skills, etc.

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07-15-2008 02:07 AM  9 years agoPost 6
keepmflyn

rrNovice

Vista CA

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CC 85HV with Neu 1910 1Y/H

My setup and I love it is the Neu 1910 1Y/H (1050KV) motor with the CC 85HV esc and outrage Xtreame 3700mah packs. I get 5 min. flight time with a head speed of 2050, no bog awesome power and put back 2600 mah which is under 80%. I am using the eMulti-Gov rather than the Castle but it also works great just have the other and easy to set up.

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07-15-2008 06:05 PM  9 years agoPost 7
lightningrc

rrElite Veteran

UK

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keepmflyn what size motor pinion are you running ?

Cheers Steven

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07-15-2008 08:50 PM  9 years agoPost 8
keepmflyn

rrNovice

Vista CA

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Pinion

I am running 12T and the idle one curve of about 95-75-95 without govenernor engaged gives me over 2000 headspeed. As I said I am using the e-MultiGov which locks the headspeed at 2050 throughout the flight.

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07-15-2008 09:15 PM  9 years agoPost 9
lightningrc

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UK

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Ok thanks I will try a 12 first then , I dont intend on using a gov , just running 100% throttle in idle up.

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07-22-2008 01:42 PM  9 years agoPost 10
72CHVY

rrApprentice

Dallas, Texas-USA

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Hot Setup

I don't know about the life span yet, but I had an Align 600XL 1650kv with a 12T pinion and it did great but did get hot. I tried the Tonic X Z30 1110kv motor with a 16t pinion and it did O.K. but bogged a little bit. I just tried the Align 600XL 1700kv motor with a 10T pinion and it rocks. I am running a 6S 5000mah battery (Air Thunder) and an Align 100amp ESC. The motor has a fan that keeps it fairly cool but I am in Dallas and it's 102 degrees ambient temp so nothing is "cool". I decided to try the motor because Ready Heli has it for $99 now with the discount pricing. It has been a long road to find a setup so I feel you bro. Just a note, I do tend to fly aggressively, not just hover. Good luck

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