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Feb 03, 2013, 07:44 PM
chuck
Quote:
Originally Posted by PeterVRC
1) are all the 12blade housings the larger id in the motor mount?

There is only one housing type as far as I have seen, and it is a large diameter (29mm, or even 30mm really) so it can fit all current 28mm motor types (eg CyclonePower inrunners of 29mm)
thanks, and that is larger than the 10blade housing, correct?
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Feb 03, 2013, 08:18 PM
Registered User
SKYRYDER1000's Avatar
Quote:
Originally Posted by WhalleyB0Y
I am waiting on a pair of these to arrive in the mail. I will be testing them in CS12's for use on 4s and 5s. If they work out I will use them in my Projet A10. It's likely that I would post my results in the CS12 forum.
If anyone else has numbers on this setup I would also like to see them.
I just ran up my 2w-23 on 4s in the ducts of a Starmax F-15.

62.2 amps / 939.5 watts (peak)

57.6 amps / 846.3 watts (setteled)
Feb 03, 2013, 09:10 PM
Registered User
WhalleyB0Y's Avatar
Quote:
Originally Posted by SKYRYDER1000
I just ran up my 2w-23 on 4s in the ducts of a Starmax F-15.

62.2 amps / 939.5 watts (peak)

57.6 amps / 846.3 watts (setteled)
I am pulling roughly 1000 watts @ 75A with 4s, 2w23, cs12-70
Feb 04, 2013, 11:29 AM
Registered User
SKYRYDER1000's Avatar
Somewhat of a difference from the 10blade to 12blade rotor using the same motor.

What size pack did you use and what c rating? I used a 4s Sky lipo 3300mah 30-60c.

Was your test a bench test or in AC?
Feb 04, 2013, 01:31 PM
Registered User
WhalleyB0Y's Avatar
Quote:
Originally Posted by SKYRYDER1000
Somewhat of a difference from the 10blade to 12blade rotor using the same motor.

What size pack did you use and what c rating? I used a 4s Sky lipo 3300mah 30-60c.

Was your test a bench test or in AC?
I used 4s 3500mAh 30C packs on the bench with the inlet lip. I just set them into the aircraft with 90% fsa tubes so I might get different numbers now. We will see.
Feb 04, 2013, 05:43 PM
The best in EDF since 2005
Extreme_RC's Avatar
The 2W23 is a 1000w motor, but on 5s, so be careful of the amp draw, you dont want to cook it in warm weather. 2W25 is a better choice.
Feb 04, 2013, 09:32 PM
Registered User
Dirty Dee's Avatar
Those using the Turnigy L2855-2800, do you use a standoff when mounting it to the housing, or do you feed the wires through the front/dremel hole at the front?
Feb 04, 2013, 10:02 PM
Registered User
Yes, modify the hole to suit the wiring of outrunners.
Feb 05, 2013, 05:18 AM
Registered User
4stripes's Avatar
I'm using the 2855 2100 and dremel one of the side slots for the motor wires.
Also using the shroud from the 12 blade as it has more motor clearance and better stators.
Feb 05, 2013, 05:32 AM
Registered User

outrunner wires: out in the direct way, down and to the front


...and then I'm drilling a hole in the shroud so I can get the wires out directly.

choose the position of the wires such that it doesn't interfere with the airflow over the vanes - they should be in-between.

put some shrink wrap over the wires to reduce drag

my2c
Feb 05, 2013, 10:15 AM
Registered User
WhalleyB0Y's Avatar
Quote:
Originally Posted by Extreme_RC
The 2W23 is a 1000w motor, but on 5s, so be careful of the amp draw, you dont want to cook it in warm weather. 2W25 is a better choice.
Do you mean 1000w on 5s, with a 10-12 blade rotor? This is partially why I reduced my setup to 4s and stuck with the 2950kv to keep with some decent rpm's.
Feb 05, 2013, 11:28 AM
3DHOG
jcdfrd's Avatar
Quote:
Originally Posted by 4stripes
I'm using the 2855 2100 and dremel one of the side slots for the motor wires.
Also using the shroud from the 12 blade as it has more motor clearance and better stators.
yes the cs70/12 housing is far superior to the cs 70/10 housing
for guys that want to upgrade there 10blade housings to the 12 blade housing you can get just the housing only here
http://www.tamjets.com/original/prod...07754808e13c8a
Feb 05, 2013, 05:01 PM
The best in EDF since 2005
Extreme_RC's Avatar
Quote:
Originally Posted by WhalleyB0Y
Do you mean 1000w on 5s, with a 10-12 blade rotor? This is partially why I reduced my setup to 4s and stuck with the 2950kv to keep with some decent rpm's.
No the 2W23 was originally set up in the HET fan and rated for 30 sec WOT in their paperwork.
Point is a motor is rated to X amps, so thats what you need to work with, if you are pulling 60A on 4s then you are a little above the motors rated amps already, it will get hot if run WOT all the time and you need to be mindful of overheating it in warm weather. Certainly dont try running it on 5s!
Feb 05, 2013, 08:12 PM
Registered User
WhalleyB0Y's Avatar
Quote:
Originally Posted by Extreme_RC
No the 2W23 was originally set up in the HET fan and rated for 30 sec WOT in their paperwork.
Point is a motor is rated to X amps, so thats what you need to work with, if you are pulling 60A on 4s then you are a little above the motors rated amps already, it will get hot if run WOT all the time and you need to be mindful of overheating it in warm weather. Certainly dont try running it on 5s!
Thanks, I appreciate the feedback on this setup. I had a heck of a time trying to decide on which motor to use and I really hope these ones works out. From what I was hearing, 3000kv is the sweet spot for these fans on 4s and there isn't a lot of good motors in that kv range to choose from. I have been running a different lesser quality 2950kv motor in a 10 blade on 5s without any problems so I figured I would be safe with these Het's on 4s seeing how they are considered to be of excellent quality.

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Last edited by WhalleyB0Y; Feb 05, 2013 at 08:32 PM.
Feb 06, 2013, 08:12 AM
Registered User
thanks petervrc, anlucas, odysis, 4stripes,

i loaded the intake lip and it was a world of difference!

i got my dream values of 1.3-1.4kg thrust with 63amps.

Thanks for the advice! Hard to believe that a simple piece of plastic can make so much difference!

I wasn;t expecting a high suction so i was hovering my hand at the intake to feel the suction. And zoom, my hand got stuck at the inlet....

This fan is a magnificent fan... truly a power house... thanks for all the assistance and advices!


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