Jason B

iTrader: (13)

I just got two CO27 stock motors in, both the "Pro" version.

Both motors had their dyno stickers, the "Pro" packaging, etc., but one of the motors' brushes wasn't even soldered to the tab. In fact, there was ZERO solder on the tab or the brush.

So I'm just curious as to where my motor's dyno sticker came from.

Interesting.

Marcos.J

iTrader: (239)

what brushes and springs do you have on it? If you have the black springs on it and a full non serrated brush its not the pro version

hpipro321

theres many possibilities here, first the motor could have got unsoldered in a fall at the factory after the dyno, and remeber the factory does not put alot of solder onto these motors. second your motor could have come unsoldered in the intense heat of the dyno.... there many ways this could have happened but its nothing big

jaysimpson

iTrader: (9)

I am not suprised at his comment. I opened one of the "PRO" versions and decided to see if it was really "trued" at the factory....LOL There is no way it was trued, maybe run in a few minutes and maybe on a dyno but that's it there is isn't any tuning to it. I picked mine up since a local shop had some but from now on the only ones I will use are from motor builders I trust. (EA,Xpress,Brood,etc)

Jason B

iTrader: (13)

Read below:

There is no way solder has EVER touched that brush OR the tab. Absolutely impossible. They are both brand-spanking new; clean as a whistle. They have never been soldered.

Which again begs the question: how was it dyno'ed?

It has the pro springs and brushes. I'm sure it started out as the Pro version, but it sure didn't end up that way. If nothing else, in my opinion, it very much calls into question the integrity of their dyno process. This motor was not run-in. I'd very much like to know where the dyno sticker came from...

sosidge

A motor will run even if the brushes are not soldered on. The current will be carried through the hood and the spring.

So, they could get a dyno run, but it wouldn't be a particularly good one.

Jason B

iTrader: (13)

Ahhh..... that makes perfect sense.

Well, at least it's not a fake dyno... just shoddy worksmanship.

Marcos.J

iTrader: (239)

well the last batch of motors that I got almost all the stickers from their dyno were almost the same some were identical

Grizzbob

iTrader: (2)

Precisely, & as far as how the dyno connects to the motor, all of them except for the Robitronics uses alligator clips anyway(no solder involved, only Robi uses test leads that need to be soldered & they're the only ones that reccomend that anyway, they feel it's best since that's how we connect our motors to the ESC). And I agree that it's much more likely to see a poorly done motor come through from the biggest manufacturers(like Trinity, Reedy, Orion, etc.), because they don't have time to give the knd of individual attention to every motor, like we can get from smaller companies, such as team Brood, DC, eXpress, EA, etc.. Also, the big companies do not weed out the bad ones like smaller companies do, they just put their preferred setup on it , test it, & ship it, rather than take the time to make sure the motor performs as expected, & if it doesn't relegate it to lesser status....

AxiomJacob

iTrader: (27)

i was at a hobby shop once and two pro motors had the exact same dyno numbers.

PitCrew

My advice.
Buy from a motor tuner.
OR
Don't buy the "Pro" version, buy the cheaper version and put on your own brushes and springs, turn the comm, and align the brush hoods.
OR
Buy from a motor tuner...

Jason B

iTrader: (13)

Well, I'll keep these motors because I got them as part of a huge order that qualified me for a great discount at Tower (basically got one for free).

But, these are the last motors that I'll be getting directly from the manufacturer. The nice thing about some of the tuners that I've noticed is that you can request a setup for a specific application.

That's cool.

PitCrew

Yup,

Team Br00d will tune and tweak a motor to your application.

Wild Cherry

Too Funny


I`v seen how these motor tuner`s tune ...
They only use a "cheet sheet" with instructions to assemble the motor`s & thats about all...

More betta to buy & tune the motor yourself for the best performance...

polesitter61

iTrader: (4)

I know a guy that puts the shunt of the brush under the spring tab on top of the hood, no solder involved there, seems to work just fine. Only thing I could see that would be different is that the spring tension would be a little higher becase the shut holds it out a little bit.