S3674-1660 Brushless Inrunner 1660kv (23T)

 F100CUFFLINK 885 points

TURNS,something to do with the windings (for the RPM'S of the motor) of the armature ,its just a guess. but I think im correct

 chris 132 points

should be fine

 chris 132 points

i may be ok as its rated a 6s but be carfull with gearing

 chris 132 points

i may be ok as its rated a 6s but be carfull with gearing

 joshuav 78 points

The max rpm's should be ~36800 running on 6s LiPo. On 4s it would be roughly ~24500 rpms. Hopefully this helps!

 KaosKane 1428 points

the standard FlyFly 90mm EDF in albatross and F-100 jets Draws 77A after 30 seconds using 3300mAh 35c 6cell turnigy lipos with Tz85 esc. HTH

 KaosKane 1428 points

Please disregard my comment above i was telling of my Warhead_3545_1850KV_EDF_Motor_90mm not this motor

 Luke 1 points

It is actually capable of slightly more than 60 amps. I've seen mid 70s on my logger before.

 Luke 1 points

No! I'm running it in a 2wd pede, and I run it on 3s and 4s. still plenty powerful.

 Luke 1 points

Slightly less powerful, slightly less efficient. I've run both, and this one was actually a little bit of a let down after the XK.

 Joel 97 points

probably not as its only rated at 2-6s and thats its max voltage input.. a less KV rated motor will more likely be able to handle more cells.

 lummox 32 points

I have run it for a short time on 2 1300mah 4 s batteries for a total of 8 s. it was mounted in a 102mm edf. I wouldn't recommend it but it's possible

 heychas 51 points

I know rocket boy... 1660kv is usually in the range for 8s. Is this made for EDFs? It must be more of a car thing.

 proboat 2 points

yah way NOT

 Matthew 10 points

This seems to have the same specs as the LBA3674/10T 1660kv, so 2.5amps unloaded would be my guess from its specs sheet.

 Swartz12 1 points

yes you could but you really need to go for more KV some thing like a 2000 or 2200 kv will give you more speed the 1600 kv will have more torqe

 mickieboy 10 points

dont you need more torqu if you putting it in a 1/8 truggy

 PieroNicastro 15 points

It needs a 100A ESC as HK 100A one, wich costs such as 40$ but is the best ESC I've seen before! Just check the limit of your ESC, if it is under 100A, buy a new one.

 jfulka 9 points

I am running this in crawler with Trunigy 60A esc and it is ok.

 spitfire2010 640 points

you might be fine with 60A esc only because the motor is not pulling above 60A. you should get a watt meter. Make no mistake, if you pull over the rated amps you can kiss the esc good bye!

 mikhail 43 points

you just cot off the 4mm connector, and solder on a 6mm, or just solder both wires together

 justforfun 84 points

not really torque enough for a crawler. try a 55 turn brushed motor

 erh7771 292 points

I've gone up to 3000 watts on it with little to no heat soak. Solid motor jus a lil heavy for edfs but for the money I'll eat 2 ounces in weight

 Mike K 114 points

*erh7771** Can you be specific about what set up you used and your results? Thanks. I'm planning a twin 90mm EDF and hunting for just the right 6s set up.
Thanks

 JaroEDF 15 points

Did you make tests? What is final current and thrust on your 90mm EDF? I am thinking about using it in same EDF as you.

 erh7771 292 points

Not Yet, ordered at beginning of year and haven't received yet expecting end of this week or next week. I'm going to test this on the 6blade Haoye fans that are pitched like Wemos also, should be interesting.

 JaroEDF 15 points

I think so. 74mm lenght should be enough to handle 90mm Hayoe. I tried Typhoon 500H on it before, but current was too high. This motor looks like excelent alternative to 36mm ARC on 6S, but it depends on its quality, if it can handle such power, or it will loose magnets.

 kimhey 104 points

Tested it yesterday in a Changesun 90mm fan. 6s1p 5000mAh 20C lipo, produced around 1350 watts/62 Amps. Motor stays cool. I also have the ARC 36.75.1, and these two motors are not comparable performance vise. But very nice motor for medium level performance! Nice price as well :)

 JaroEDF 15 points

Nice performance for low cost. Did you also measure thrust? It is quite interresting question for me and my midi jet :)

 kimhey 104 points

Nope, but I can do that tomorrow.. I would guess around 2kg.

 JaroEDF 15 points

Now I'm thinking about that if this motor can handle also 7S in 90mm EDF. It could make amazing thrust on 7S...

 erh7771 292 points

Jaroslav(5)- what are your numbers with the arc\changesun or the arc\wemo midi? The amp draw seems just right seeing the CS fan is a lighter load than a midi. Arc36751\Wemo Midi on 6s is 70amps (rc groups com/forums/showpost.php?p=15514879&postcount=75). Also, the Arc36751 on 8s with the CS fan pulled 80 amps and over 7pds of thrust...62 amps on 6s if near proportional amp draw to cell count\voltage should give >80amps on 8s settled (rcgroups...showthread.php?t=1187776&highlight=36 75 1&page=11).

 erh7771 292 points

Meant to ask nicolay

 kimhey 104 points

Measured thrust with this motor/Changesun/6s1p 5000mAh/20, is 1,8kg. reply to erh7771: I have not tried the Arc 36.75.1 in a Changesun fan, so I have nothing to compare with. Arc in wemotec midi on 6s, produced around 1550 watts if I recall correctly. Did not measure thrust at that time. All over, this motor seems so hold very vell at around 1400 watts. No excessive heat building up at that load. I believe that 1600 watts stated in the product info, is correct :)

 erh7771 292 points

So far I've put >2000 watts through this thing and it hasn't skipped a beat but. Hoaye 6blade it does 5pds4oz on 6s * 60amps on 7s it does 7pds peak at 84aps 6pds12oz settled. I don't have the best batteries either so those numbers would go up with >30c packs. So far the numbers look close to a Medusa 1600 vs an Arc. I've gone to 8s 105 amps on the hoaye 6blade but couldn't get accurate thrust numbers mostly cause my speed controller wants to act funny but at 3000watts with heat sink it didn't get too warm. Good motor so far

 kimhey 104 points

Did the motor generate much heat on 8s?

 erh7771 292 points

Kim - No and I held it in my hand for > 10 seconds then came back to it to see about heat soak and there was very little heat soak with ESC. I tested it tonight on ChangeSun and got 80oz at 57amps...very close to medusa 1600 numbers. The max thrust I got on 8s though was 7.5pds of thrust which is a little under what I wanted but again my ESC was acting funny.

 kimhey 104 points

erh7771 - thank you, this sounds promising. I have a HV esc in the mail, and will test at 8s when it arrives. I have attached a heatsink to my motor also. Will report back.

 erh7771 292 points

Freewing 6 blade fan 147oz of thrust on 8s\94a\27.8v settled HK 1660kv motor

Freewing 90mm Fan - www.link SuxFly motor from HK - www.link Sentilon100A - www.link amps burst 94 amps settled, used two unheated 4s 20c Rhino packs (I'm impressed with the Rhinos)

No video yet cause I got nervous as all get out spinning this thing up vs the last one, it wasn't as smooth as I'd like (or I was paranoid) so I'm going to make a horizontal test stand for my fans north of 2000 watts including 5 inch fans (any one know of a thread for this please link)


I think anything above 2000watts for now on is goin on the horizontal test stand vs the vertical one. I can put some glass around the stand or something to protect against flyin blades.

 __cika 11 points

I would go for the 3674 myself. Longer can for a bigger truck and higher KV to get the most outta a 4s lipo