New 12s 4kw motor from Hobbyking for under $100

[6BOOST]

http://www.hobbyking.com/hobbyking/s...20mm_EDF_.html

I have purchased 2 just for sh1ts and giggles to see how they go compared to the myriad of other engines I have of similar size and power rating, not sure how they would go with cooling cans being 39mm, might work with the leopard cans with a bigger O ring, should work with the bigger 40mm motor mounts like Fightercat sells to suit the castle 1520. One of my staff uses a lot of turnigy and leopard motors and has found they are very reliable at or even past their rated power, so this thing on 12s and 4kw should be a ripper for the money=)

6BOOST

[m4a1usr]

Could be usefull in certain applications. A longer rotor does have some power/torque band benefits. But I wouldnt set the bar too high in expectations for that motor. If it comes with 4mm bullets. Theres a reason for that. And the motor leads look like 12 gauge. Dead give aways. I have not found one "cheap" motor that outperforms or even equals its quality built duplicate. Having said that I would like to hear what you find. And it never hurts to explore the new arrivals. Sort of ala Forrest Gump. RC'n is like a box of chocolates.

John

[Jacked1]

Could be usefull in certain applications. A longer rotor does have some power/torque band benefits. But I wouldnt set the bar too high in expectations for that motor. If it comes with 4mm bullets. Theres a reason for that. And the motor leads look like 12 gauge. Dead give aways. I have not found one "cheap" motor that outperforms or even equals its quality built duplicate. Having said that I would like to hear what you find. And it never hurts to explore the new arrivals. Sort of ala Forrest Gump. RC'n is like a box of chocolates.

John

I like the Forrest Gump reference. It's very true!
It looks like a good candidate for the new FC escs!

[6BOOST]

Could be usefull in certain applications. A longer rotor does have some power/torque band benefits. But I wouldnt set the bar too high in expectations for that motor. If it comes with 4mm bullets. Theres a reason for that. And the motor leads look like 12 gauge. Dead give aways. I have not found one "cheap" motor that outperforms or even equals its quality built duplicate. Having said that I would like to hear what you find. And it never hurts to explore the new arrivals. Sort of ala Forrest Gump. RC'n is like a box of chocolates.

John

I couldn't agree more, I have no delusion of this motor being an NEU, lmt or even castle replacement, but by the same token I bet no one would expect a leopard 4082 to punch a genesis to 85mph and a 32" rivercat to 100mph either. I have a Castle 1717, neu 1527, lmt 2280 and leopard and TP power 4082's to compare it to and the mount in my genesis will take everything except the 1717, and I have 2, 3, 4 and 6s packs to keep rpm's similar between motors, I'm not saying I will have them tested in the next 2 weeks, but at some stage=)

[steveo]

just because the motor has 4mm bullets and 12 awg wire does not mean its cheap, its a high voltage motor which has less amp draw doesnt need bigger wire

[6BOOST]

just because the motor has 4mm bullets and 12 awg wire does not mean its cheap, its a high voltage motor which has less amp draw doesnt need bigger wire

Correct=) At 44 volts and 4000w it's only pulling 90a and transferring it over the 3 motor wires not 2 battery leads, 4mm doesn't seem so silly Regardless a change to 5.5mm bullets will be in order to match everything else I have.

6BOOST

[Brushless55]

Would this be close in size to a 1527?
Could be a nice one on 10s

[siberianhusky]

http://www.hobbyking.com/hobbyking/s...%5FEDF%5F.html

3659 1900kv claimed 1770 watts. A little more along my size, the same style. If I get back to the point of "spare" cash might give it a try in one of my small 4s boats

[lenny]

What about this motor ? http://search.yahoo.com/r/_ylt=A0oG7...5/HK-4035-800/
For my Stealth setup and FC 16s 250a esc on 8s2p or 10s2p,
Would it be a cool runner with low amps draw with long run times ?

Thanks any info.

Lenny D

[6BOOST]

That motor is only 250kv, so you'd want 24s minimum, I haven't done much research on the scorpion motors but believe they have a decent reputation, I think you were looking at a higher kv Version tho which would suit better. In comparison these are of similar power and half the price, the leopard and TP 5692 is around 1000-1500w more output again.

6BOOST

[6BOOST]

Would this be close in size to a 1527?
Could be a nice one on 10s

I would expect if this lives up to its power capabilities it would be somewhere in between a 1521 and 1527:) I have a 1527 in a little higher kv to compare.

6BOOST

[m4a1usr]

just because the motor has 4mm bullets and 12 awg wire does not mean its cheap, its a high voltage motor which has less amp draw doesnt need bigger wire

Thats true if you use the logic of staying within the limits of those components. But we are RC boaters. The guys who convinced Castle to finaly offer a cap bank for their ESC's after years of failures! If we stayed within the design limits speed would be no fun! But I get where your going. Its not a quality indicator, however its a warning to those savy enough to understand the physical components.

John

[6BOOST]

Just so no one get scared off by the fact the motor has 4mm bullets, the T600 880kv motor also comes with 4mm bullets and on 12s the edf guys have been pushing the same motor over 5kw for 12 months now with no failure, I'm not sure if they upgraded the bullets or not, but I'd say the wiring should be just fine

[Fluid]

What about this for my Stealth setup FC 16s 250a esc on 8s2p would it be a cool runner.

One of the Scorpion HK motors makes more sense for FE. They are helicopter motors with higher Kvs than the airplane motors. I put an HK-4025/1100 in my SprintCat for sport running - 6S1P/4500mAh, bent-up x455, high 40s for two-three minutes. Smaller props for longer run times. Some guys run the HK-4035/800 on 10S. Outruners are usually less efficient than inrunners and they are more difficult to cool, but then they can tolerate much higher temperatures.


.

[6BOOST]

The T600 is also a heli motor at 1/4 the cost and available in higher kv (1400?) if your worried about running higher voltages, and has proven reliable at and above the power levels the scorpion puts out. I'd personally prefer to run 12s1p on the 880kv than 6s2p on a higher kv, but different horse for different courses

6BOOST