Anybody try the new Reedy Ti motor?

[RcBum]

Has anybody tried the new Ti motor?
If so, can you tell me what you thought of it? Will it be a good motor for my Tc3? If not, can you recommend a good mod motor for my tc3?

[bryceanator]

i am going to recamend a killer bee mod motor they have an 80% efiecncy thats mean long run times heres the site http://bruiserstuff.hypermart.net/main.shtml

[Nairb]

There's NO way those motors all have 80% efficiency. If they say so, it's false advertising.

[Grizzbob]

I wouldn't say it's false advertising, but that efficiency number is a bit misleading. The efficiency numbers produced on a dyno give you some indication of how it uses current, but if it still has a big amp draw, then you'll still get short run times. Amp draw is really the most important number in figuring out how long you can run on a charge, which is why the best ways to get more run time out of a motor is to either retard the timing or use a milder wind. For example, I have a 15 turn that reads about 75% max efficiency(that draws max 115amps) & a stock motor that reads 66%(max draw 74 amps). The 15 turn has a noticably higher efficiency #, but it's amp draw is much higher than the stock, so the stock will still allow much better run time. If you want to crunch dyno numbers, then I'd look more closely at the max. power(& how fast it reaches it), how much torque it produces at all rpm ranges, & its rpm at those points(as well as max rpm)...... :)

[bryceanator]

they dyno tested it at rc vehicals website at just a sec i will find the link

[bryceanator]

http://rcvehicles.about.com/hobbies/rcvehicles/library/mph/blmph_motor_kb1.htm check it out it was actually 80.2 on the motor they had dont doubt kbr they make awsome stuff the guy who owns killer bee racing balistic stupidity too he makes great stuff and has great customer service he even explains why if he doesnt email you soon he has helped me out and sells hand wound mods for almost half of reedys and trinitys top end motors he knows a lot helps alot the way i it you were trashing his product even though it great and i am geting one on wensday i will tell you about if you want

[The_Ne-Go-She-Ate-r]

I strongly doubt that the killer bee has over 80 % efficiency. I have yet to see a " BRUSHED " motor with numbers like that.
I would think if a smaller company made electric motors with 80% efficiency, that a bigger in size racing comany like Reedy would be able to throw something a little nicer on the table which i have yet to see.

[Car_Head12]

dern bryceums, that is one BIG run-on sentence...

[bryceanator]

did you not go though the link i am not lieing look at the graph and tell me the purple line does not say 80 tell me that big companys like trinity and reedy crank out tons of motor very fast so they do not out as work or time in to there motor this guy test them then tests them over and over to create a supior product its like compareing a corvette (trinity) mass produced to a aston marton db7 (killer bee racing) hand made tweaked to perfection when you buy a trinity motor you need to tune and tweak it this it already done

[bryceanator]

whoops i are not so leared in englimsh (LOL)

[mavrick0611]

at $95 who could afford that new Reedy Ti motor?

[bryceanator]

i know but if you want some thing just as good or better look at killer bee racing you could get one for 54 american i am geting mine cheaper tho

[bryceanator]

grizz but you have to admite 80% eficancy but more amp draw more power volts are flow and efficny is how much of the volts are actually turned in to power for your car i will tell you what when i get my motor soon i will post thet dyno tests on the motor ok would that satisfy every one in here?

[bryceanator]

i decided to post the review here it is

12x2 Modified Motor


First impressions - WOW! I am not a big fan of blue, purple, red, or other anodizing, but the endbell on this motor is TRICK! As you can tell by the pics, the purple endbell has mega surface area to dissipate heat. There are no less than ten fins on the endbell (measuring approximately 1/4"x7/16") to provide a surface area of over TWO square inches of heatsink to help cool the motor (I counted two sides of each fin but did not count the sides and ends of the fins or the endbell itself).

The gold brush hoods add a nice contrast to the purple endbell, black/grey can, and the cool Killer Bee label (does this sticker remind anybody of a certain musclecar from the late 60's??). Of course their are high quality bearings on both ends of the can... and check out the pic of the nice stacking of the winds on the armature..... quality can BEE seen! How many people have an armature in the pit box that they cannot identify what turn it is? Okay, put your hand down..... Killer Bee has helped out in that department as well.... the armature is clearly marked with a black sharpie that this is a 12x2 - it IS the details that count.

I removed both brush springs to check if the brushes were broken in yet and everything looked good here as well. Armature centering and spacing were right on the money, so on to the dyno we go!

I have a small amount of mod motor dyno pulls in my data bank to compare from, so I was actually quite surprised at the results of the dyno pulls. I ALWAYS use the flywheel guard on the Robitronics dyno when spinning up any mod motor. The instant RPM's that good mod motors produce make this a necessity - safety first!

The first pull on the dyno yielded very good results. After the second pull and another check of the brushes, I considered the serrated brushes completely broken in - all the serrations were there and the motor spinup time was decreasing (this is GOOD). Comparing the 12x2 Killer Bee Racing dyno pull to a 10x2 motor the results are as follows:
KBR 12x2 (tested at 7.5 volts)
222.8 watts of power
80.2 % efficiency (EXCELLENT!!)
232 Nmm torque
140.4 amp current draw
5.49 sec spinup time
39938 rpms


The Killer Bee Racing 12x2 mod motor has MORE watts (power), more mid range torque, and better efficiency than the 10x2 that I compared it with..... and gets all of this done in 1.5 seconds less time.

This will be a hard motor to give away on rcvehicles.about.com ...... but the lucky person will get a Killer (Bee!!! Hehe) mod motor

[Grizzbob]

Bryceums, I wasn't knocking the motor or doubting what you read on it(in fact, those numbers from the article you posted look VERY nice, lol), I was only trying to help you understand that in general, those efficiency numbers(on ANY dyno test, any motor) are not the most important determining factor in what kind of run time you'll get from it. Like I said, when you look at a dyno screen or printout, you should pay more attention to the amps it draws then the efficiency number. Now, if you have two motors putting out very close numbers, but one has a higher efficiency reading, then get that one, but just don't rely on that number too much...... :)

[bryceanator]

heres the other specs the cans are killer bee cans they have Fantom handwound epic arms and fantom brushes and the guy (clayton) just emailed me and said they screwed up the dyno testing they tested them at the end of the wires instead of at the motor conectors o well i will have to get it tested at my lhs

[bryceanator]

sorry there not epic i just got them mixed up

[tc3_guy_0059]

I just got my Reedy TI 12x2 today. Haven't run it yet, but I will tell you how it comes out. It is much prettier in person than in the picture. But I think it will be a good motor. And the "retail" cost of the motor is $95.00, you can get them for $69.99 from just about any hobbytown usa, unless they changed the price, remember all hobbytowns are privately owned. Good Luck. And I am also looking in that killer bee motor. :)

[Nairb]

Well, I must say I'm impressed. I'm sorry I jumped the gun so fast, but I still believe that ALL his motors can't be above 80% efficiency. It looks like these are very fine motors, indeed, but brushed motors are lucky to get eff. ratings that high. It simply can't be the average efficiency.

Dang, that endbell looks cool. Tim, does Fantom use a similar endbell?

[SteveP]

80+ efficiency ratings, at least as measured with a Robitronic dyno (the same used in the testing of the KB motor) are very common. In fact, most of the motors I've tested run in the 79 to 83% range. Stock motors are typically 10 to 15 points lower.