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Zoom › 400dh+tp2100+8t, amazing
11-03-2004 05:34 AM  13 years agoPost 1
turboomni

rrProfessor

East of the Equator

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I have upgraded to a 400DH and a CC25+ Thunder Power 2100 Mah Lypoly,AND a 8T from LIKE90+ LIKE90 Blades for my Shogun.
All I can tell you is amazing power that out performs my NITRO WEBRA 36 SPEED MOTOR Raptor in all respects. The power to weight ratio is much better than my Raptor,,,,,,,,,,,,,,I will say though I Love my Raptor when I can get out to the field,,,but more often than not I fly my Shogun. The 400DH is an amazing motor. BUT you have to realize that it has so much power in ALL regions of the power band . IF YOU RUN TOO MUCH COLLECTIVE TO THROTTLE IT WILL GET THE JOB DONE. But the cost is too much power draw and run times.
The trick is to run the little guy up in rpm and then it won't even draw a sweat with a low pitch. The low pitch will get the job done with the high rpms. I have heard of hot motors and such with this motor...NOT if you keep the rpms up and let the lower pitch at a higher rpm's do the work for you/ I remember when I was a kid learning from my father about power tools,,,he would always say don't force it,, let the tool do the work.
I think the same thing applies here. Don't load up any motor ,,let it spin!!! The 400 DH will do anything you want ,,LOW end GRUNT,,which it can do because it is so powerful at all rpms BUT i don't recommend it for power /duration. Let it spin,,the Shogun loves that. If you used a lower powered motor you couldn't get away with the high pitch low rpm setups that the 400 DH CAN get away with. You can get the best of both worlds,,,duration and massive power with the 400 dh if you know how to set it up. There is a sweet spot for any motor,,,as in souped car motors the higher the performance the narrower the sweet spot,,,and you got to find it. It's not that hard when you think about it. I think if you try it on this motor you will be as happy as I am.
This motor rocks big time. I have heard much more hot motor problems with the HYMAX and cooking battery problems.
400 DH is a Hemi,,,you can load it down big time and get away with it but if you let it spin up in it's real power range it's even more impressive.
My 2 cents

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11-03-2004 08:27 AM  13 years agoPost 2
steph

rrKey Veteran

Hampshire England

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Well said turboomni
just a quetion what headspeed are you running with that 8t pinion and what is your auw i found with the zoom that if i ran a 8t pinion the head speed was low and the performance was not there the zoom likes to be above 2200

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11-03-2004 02:27 PM  13 years agoPost 3
pigs dont fly

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City, State - Country

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Hey turboomni, can I ask what your runtime is please? I have exact same setup, cc25, 400dh, TP2100 G2, Like 90s and would like a comparison. I agree its got a ton of power. I want to try with Hornet 2 blades but havent busted the Like90's yet.

Go on then give us a clue of your setup then

Thanks
E

Warning...This hobby is very addictive and may damage your wealth

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11-03-2004 03:42 PM  13 years agoPost 4
ammo

rrVeteran

Singapore

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How is the power compared to hacker b20 15L?
and himaxx4200?
i am going to change out my 3200 soon cos the bearings are failing, so i need to pick up another motor. looking for something that doesn't bog down much in full collective climbs though

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11-03-2004 05:29 PM  13 years agoPost 5
dasd

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Carol Stream, IL

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More info please...
I just bought a Shogun and I'm new to electrics. I'm a nitro Raptor guy. Give me some more details please? What's a 400DH? Is the CC25+ the Castle Creations ESC? Do you use the BEC supplied or a separate SBEC? Thanks in advance from an eflight newbie

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11-03-2004 06:30 PM  13 years agoPost 6
pigs dont fly

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City, State - Country

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Hi sunfunflyer, yes the cc25 is the castle creations esc, use the cc25 bec or a sbec if you feel the need to, but most use the esc bec. The motor is from http://www.justgofly.com.
Dunno how it compairs to the Himax or Hacker as I dont have either, I fancy a Hacker though, just to see what all the fuss is about but Im skint untill after Xmas as its currently upgrade the PC again season.
E

Warning...This hobby is very addictive and may damage your wealth

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11-03-2004 08:49 PM  13 years agoPost 7
dasd

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Carol Stream, IL

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Good Info!
Thanks and hello Pigs Don't Fly...

Great website. I too am spending my paycheck slowly. This stuff gets expensive pretty fast

Building will be my bad weather (spelled winter) project. How much battery capacity is needed? Is 2100MAh right on or will 1350 do the trick?

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11-05-2004 04:02 PM  13 years agoPost 8
turboomni

rrProfessor

East of the Equator

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Hey Pigs don't Fly. At the moment my flight times are between 12 and 14 minutes BUT I must qualify this statement by saying I am using a cheapo Hobbico 50 buck fast field charger. I talked with the guy at RCbatteries.com that had done the review on this unit. He said that it's fine on NiCads and NMH batteries BUT only charges LyPolies to between 80 to 90 %. At the end of any charge on different brand Lipo's the battery voltage is only 12.15 to 12.18 volts!! I believe a fully charged pack should be 12.3 to 12.65 or so. So I am anticipating longer run times. If I get a solid 15 to 20 minutes I'll be happy after getting a better charger. Ant suggestions on a good one?
Is the Triton good?

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11-05-2004 04:10 PM  13 years agoPost 9
turboomni

rrProfessor

East of the Equator

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Hey Steph , as far as head speed goes I don't have a tach to measure it. I do it by ear and I'll tell you its alot faster than the stock motor.
I try to keep it as fast as it can go comfortably and keep pitch low.
I only need a max of 85% throttle to get anything done[just before the led comes on on the CC 25.] The motor does not slow down and the climb is great at full collective.
I think if you let the blades go faster but take smaller bites from the air it gets the job done more efficiently and the cyclic is better at the fast speed.

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11-05-2004 04:23 PM  13 years agoPost 10
CRAZYKEV

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Cincinnati,Oh - U.S.A.

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I am glad you mentioned the Hobbico charger. I have been having the same problem with run times and I feel that it is the charger also. I think I will replace it with the astro 109 charger.

Kev

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11-05-2004 04:39 PM  13 years agoPost 11
CRAZYKEV

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Cincinnati,Oh - U.S.A.

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Hey turbomni,

Are you using the gov. mode or fixed throttle? I hear that motor doesn't work well with gov. mode which I always have used.

Kev

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11-05-2004 05:29 PM  13 years agoPost 12
playfair

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Rochester, NY

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I have the same setup, except I have the Evo carbon blades.

I'm having a hard time imagining the 18-20 minutes some people are claiming from this machine! Is that measured in real time, or virtual "feels like" time? I first had the 9t pinion, and the 8t lowered the head speed a couple hundred rpm, and gave an additional minute or two of run time.

My last hovering around flight was almost 12 minutes before the 9v cutout. I had slowed the headspeed to around 2400, as I still have a tail vib that gets worse any faster. My Triton then put 1900 back into the pack; I've heard this charger won't them to capacity (too conservative),,,

I'm going to try running a pretty flat throttle curve next (after the vibe is gone), as I can't hear the motor slowing down during a pull out. "Full speed" according to the CC25 led is 90% throttle, so I hope to run around 75-80%. The last flight was hovering at 65%.


The sky is our canvas

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11-05-2004 06:14 PM  13 years agoPost 13
turboomni

rrProfessor

East of the Equator

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Hey Playfair ,,I was thinking of getting a Triton but you dont recommend it?
What voltage you get after charging a TP2100?

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11-05-2004 06:18 PM  13 years agoPost 14
turboomni

rrProfessor

East of the Equator

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CrazyKev .. I don't run Gov mode and don't feel the need. Probrably cause I have never flown a heli in gov mode before.

Oh by the way Justgofly maybe having an upgrade for the 400dh in just a few weeks if all goes well that will bump up efficency by 15%. They said it would be availble from them only.

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11-05-2004 06:41 PM  13 years agoPost 15
airshares

rrVeteran

Thousand Oaks, CA

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400DH
So will they exchange a motor that is obsolete now because I just purchased a new 400DH and now they have a new model coming out?? They didnt' let me know about that.

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11-05-2004 07:35 PM  13 years agoPost 16
turboomni

rrProfessor

East of the Equator

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Hello Airshares,,,No it's not a new motor . I know that. It's something you add to all exsisting 400DH's,, that is if it all works out.
You're gonna love this little motor even the way it is. I do.

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11-05-2004 08:46 PM  13 years agoPost 17
playfair

rrKey Veteran

Rochester, NY

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Turbo, I wouldn't say I don't recommend the Triton, as it will charge just about ANYTHING including my kids electric car... Just that it doesn't work on LiPo's as good as a dedicated lithium charger (from what I hear and experience).

Last time I emailed the JGF guys a few weeks ago they mentioned the same upgrade you mentioned. Wonder what it is? Probably one of those "greenplug" power saver thingy's! LOL


The sky is our canvas

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11-06-2004 03:24 AM  13 years agoPost 18
pigs dont fly

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City, State - Country

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HI turboomni

I cannot really recomend a charger as I have only ever had one, the one I have is Ripmax Pro-Peak Prodigy it does all my batteries, has nice digital menu and tells you how much v and mah was put into battery etc, I have brought a TP2100 back from the dead at 8.2v with it. I am very happy with it.
As for runtimes I am currently getting about 12-13 min on a TP2100 running 8t pinion (I seem to remember getting longer flights with my 9t but it did kinda fry everything :eek. But my Lipos are out of balance, so I have discovered tonight, and this is probably contributing to my sort running times. I now understand why people use lipo alarms

Warning...This hobby is very addictive and may damage your wealth

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11-06-2004 03:50 PM  13 years agoPost 19
pigs dont fly

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City, State - Country

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Hi pinoy_zoom, the tail components will hold, just dont hit idle up untill the rotors are well spooled up, or it will tear the hex shaft ends into round ones.
E

Warning...This hobby is very addictive and may damage your wealth

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11-09-2004 01:35 AM  13 years agoPost 20
Vinnie Finn

rrNovice

Rochester, NY 14624

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Hey guys - there is no upgrade for the 400DH. I have been experimenting with adding magnets to the current 400DH, and was planning on making magnet kits available to allow anyone with a current 400DH to upgrade. The theory was that 12 magnets with 6 poles - NNSSNNSS... would increase the magnetic field and provide a more efficient 400DH. Unfortunately what it did was double the amp draw and worked more like a hot plate. Sorry but the current design is the best it can be.

It seems that very high KV motors have a built in inefficiency. Check the Mega 16/15/2 motor - which is 4000 kv. I just purchased one for a test and it ran so hot I couldn't hold it with no load on 3S LiPo after 15 seconds of 11 volts. It pulled 5 amps and this is without any load at all ! So the 400DH can not be compared to very low KV motors which can not handle the high RPM's the 400DH provides. We have sold many of these motors and they continue to perform very well, but can not tolerate being bogged down.

I have been experimenting with a happy medium, a 3000 KV motor which is unreal direct drive on a wing, geared would be very nice on a plane, and should be very nice on a Heli. I will post full technical details in a couple weeks. Here I go again, open mouth - insert foot.

Vinnie
JustGoFly.com

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Zoom › 400dh+tp2100+8t, amazing
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