Mini-T on Lipo 7.4v and K3 Motor Video

[UNITED_RC]

Truck is stock spur and 13t pinion, running a K3 Motor and our Lipo 7.4v pack.

Killer runtime, barely any bleed off on the packs!!!!

Enjoy the video!!!

United RC Mini-T Video (http://www.unitedrc.com/video/minit74.wmv)

URC

[acsubie]

nice video..i just got the K3 for my mini-t about a week ago..wasnt to impressed with its speed on 15/59 with a KAN battery..i talked to intelligista and he gave me some pointers on gear ratio...he told me to give 12/58 a shot... and the mini-t flies now...nothing like with LIPO power, maybe i will be able to to find some funds to get the lipo charger and a couple batteries:D

[UNITED_RC]

That was very nice of Intelli to help you. We are glad you like the K3...


Currently, we will provide an adapter for free for all customers who purchase a charger and at least (1) lipo pack. This is necessary due to the charger having a JST connector.

This is assuming that the customer purchases a connector for the pack. We will match up the connector on the pack with the adapter.

URC

[acsubie]

i was wondering about the kan cells you are also selling...are they only sold as loose cells, or could i get a pack made up? also about the lipo charger, how much does one usually go for??:D because i want those lipo packs you guys have, very,very nice price..

[UNITED_RC]

Originally posted by acsubie
i was wondering about the kan cells you are also selling...are they only sold as loose cells, or could i get a pack made up? also about the lipo charger, how much does one usually go for??:D because i want those lipo packs you guys have, very,very nice price..

This link, I think, should answer all your questions.

http://urc.planetrocke.com/store/categories.asp?brandID=7&brandName=Battery%20Packs%20and%20Cells

URC

[Danitman2]

cool video! btw, how's the feel of the GPM shocks?

and, do you think 13/59 would be an ok setup?

[Intelligentsia]

What type of surface or track do you run on and how large?

I generally prefer a higher ratio so that the motor does not become too overworked.

I would try the ratio that you currently have. The car should fly. Just be cautious of the motor temps.

[hpidriver]

Wow, that's pretty awesome.:eek:
What kind of runtime are you getting? (all you said was "killer")
Thanks.

[mini-t]

I LOVE THAT VIDEO!!!!

thats one awosme vid.

now for a jumping video with that badd @ss mini t
right now im runnin a 6 and a 5 cell pack, ones gp ones sonya i think, and im runnin a 16, 58 gear setup. if i get a orion baja motor do you think it will go as fast as ur mini-t in that video??

thanks
mini t

[UNITED_RC]

Originally posted by mini-t
I LOVE THAT VIDEO!!!!

Thank you very much...we have fun making these videos!!! We have some nice action shots of our M18 running a Brushless RAZOR and Mamba ESC.....on......a.......ready......11.1v lipo....it is sick speed!

if i get a orion baja motor do you think it will go as fast as ur mini-t in that video??

NO WAY!!!!

URC

[UNITED_RC]

Originally posted by hpidriver
Wow, that's pretty awesome.:eek:
What kind of runtime are you getting? (all you said was "killer")
Thanks.

Today..i was bashing in the street...same setup...and I was 20+ minutes on the lipo pack.

The best thing about the lipos is that there is NO bleed off on the pack like you get with NiMH cells....

You get the full power band throughout the entire pack....hence the FLAT discharge curve on lipo cells.

URC

[Intelligentsia]

Originally posted by mini-t

if i get a orion baja motor do you think it will go as fast as ur mini-t in that video??

Originally posted by UNITED_RC

NO WAY!!!!

Intelligentsia

There is always a way ;)

[UNITED_RC]

Keeping the truck setup consistant in both setups...it would be VERY HARD, not impossible.....but VERY VERY HARD.

Intelli,

you have some great recocommended gearing setups for this truck.....what would be your recommendation for drivers to try? For speed, and for Torque?

URC

[Intelligentsia]

I have been testing some new motors as of late. I find the 280BB motors to be the best of both worlds when modified properly. The 6V 280BB motor is very promising the only issues that I have with them is their cost and longer can.

[UNITED_RC]

Hmmm.....well I would counter with the URC "300BB" motor...soon to be released..

URC

[Intelligentsia]

The motor still lacks the torque of the 280. Let us not forget that the 280 has replaceable brushes. I am working on a new 280 for myself that should blow all of the 300 motors out of the water.

I will let you know the results soon.

[UNITED_RC]

Well...of course if money is not object..then, why waste the time with using a 280 motor...and just slap a BL motor in it!

When comparing motor....you have to keep the motor in the same price category.....otherwise we are talking about apple and oranges!

Its like saying that a BL motor will out perform the K3/Beast/Rabid motor...of course it will...but the price is not even close!

[Intelligentsia]

We are comparing a brushed motor to a brushed motor. Ball Bearing Motor to Ball bearing motor. and in the end we are comparing motors of nearly identical price points.

I don't see why you are concerned. I am building this motor for myself. As I said, it blows the 300 motors out of the water.

[acsubie]

any date on the 300BB version??

[hpidriver]

Intel, could you email me about the 280BB motor. I have some myself, and would love to see what these motors can do. (As you said, they cost a pretty penny)
Thanks
francis205173@hotmail.com

[UNITED_RC]

Originally posted by acsubie
any date on the 300BB version??

I would say a safe bet on the 300bb version is about 1-2 weeks to be ready for all customers.

URC

[UNITED_RC]

Originally posted by Intelligentsia
We are comparing a brushed motor to a brushed motor. Ball Bearing Motor to Ball bearing motor. and in the end we are comparing motors of nearly identical price points.

I don't see why you are concerned. I am building this motor for myself. As I said, it blows the 300 motors out of the water.

Lemar,

Near identical price points? Then why did you say earlier: "The 6V 280BB motor is very promising the only issues that I have with them is their cost and longer can."

I just want to make sure that people reading this thread dont get the wrong impression that a 280bb Mod. Motor would be the same price..as the Modified 300's...thats all.

Everyone...enjoy the video.

URC

[Intelligentsia]

I was referring to myself in that comment as I distinctly stated that cost was an issue for me. I am not one to go out and spend more than $10 for these motors. Like I said, near identical price points as I paid $32 for my 280 motor. The 280BB is more durable than any 300 motor out there and the brushes will last at least 3x longer.

[Danitman2]

what will the 300BB motor perform differently than the K-3? What will be the differences?

[UNITED_RC]

More effiecient, providing longer runtimes, and allowing us to tune the motor to a more precise degree for optimal torque and RPM settings!

URC

[Intelligentsia]

How does the addition of bearings allow you to tune the motor to a "more precise degree?"

[Danitman2]

do you have an estimated price on these motors?

[UNITED_RC]

Originally posted by Danitman2
do you have an estimated price on these motors?

Danti,

What motors are you talking about? the K3bb?

URC

[ayougo]

well, ball bearings for one, will eliminate that sqweeking sound that is associated with brushed motors of this size containing bushings. Ball bearings will decrease the frictional force and increase total eff. The bearings will also help to elongev. the motors life span and give the motor a more accurate fit and precision.

[cesto]

how does that make it a "more precise" tune?:confused:

[UNITED_RC]

A more precise tune in the fact that using bearings will eliminate much of the friction. So...when put on a dyno, the numbers that are produced by the motor are more "true" to the motor.

So....by eliminating as much friction as possible, we can tune the motors to be more effiecient, and get more precise numbers on what the the motor is producing.

URC

[Intelligentsia]

That comment makes absolutely 0 sense. It takes ball bearings to make a tune precise? Uh oh, I think that all of the other motor tuners are now in trouble because their tuning methods are inaccurate.

If you are going to present such comments please make them credible.

[UNITED_RC]

Intelli,

Would you not agree that ball bearings:

1. Reduce friction on the motor?
2. Allow the motor to be more effiecient?
3. Allow the motor to "operate" in a more "true" fashion?

I think the answer is YES, so..with this in mind, if the motor has less friction, and is more effiecient and runs true, is it not possible to say that we could get MORE ACCURATE "true" numbers from the Dyno, thus allowing us to "tweak" the motor more precisely?

That is my point...so if I mis-communicated my thoughts, or they were mis-understood, I applogize.

URC

[Intelligentsia]

WTF is "more true?" That is amazingly ambiguous. Runs "more true" As opposed to what? All of those other "less true" motors out there?

Give me a break man.

I understand that you are trying to market a product which may or may not be any good but please try to keep the bs to a minimum. If this motor is so great, it will sell itself.

[GrAfiX]

Originally posted by ayougo
well, ball bearings for one, will eliminate that sqweeking sound that is associated with brushed motors of this size containing bushings. Ball bearings will decrease the frictional force and increase total eff. The bearings will also help to elongev. the motors life span and give the motor a more accurate fit and precision.

Isn't that what Lube is for??

Originally posted by UnitedRC
A more precise tune in the fact that using bearings will eliminate much of the friction. So...when put on a dyno, the numbers that are produced by the motor are more "true" to the motor.


Like I've said before if you have the numbers show em... :D

[UNITED_RC]

Mike,

When the product is ready for release, we will release our data on the motors.

URC

[Intelligentsia]

So basically you don't have any data.

[UNITED_RC]

Originally posted by Intelligentsia
So basically you don't have any data.

"When the product is ready for release, we will release our data on the motors."

[shodog1]

I will never buy a 280BB motor again. I bought one for my RS4 and it sucked. My first problem came when the brush cracked in half. since my LHS didn't sell replacement brushes I had to make my own from a standard 540 brush. then to top it off, one of the can magnets came unglued which made the motor and expensive paper weight. Then I got smart and bought a speed 300 which is half the price and found that the 280BB had no where near the speed that a speed 300 has.

while yes the brushes are replaceable on a 280BB, by the time they need replacement, you will need to true the commutator also. I have yet to see a com lathe small enough to work. so really your better off with the $15 disposable speed three hundy

[Intelligentsia]

That was your experience.

The comms of these motors are able to be cut as a FYI.

You most likely purchased a 7.2v 280bb

[shodog1]

Originally posted by Intelligentsia
That was your experience.

The comms of these motors are able to be cut as a FYI.

You most likely purchased a 7.2v 280bb

I am sure they are able to be cut but with which comm lathe? I don't know of any comerically available lathes for motors that small.

[hpidriver]

You want the 6V version motor, not the 7.2-8.4v, like Intel said.
And the comm can be cut on a normal lathe, it fits on mine. Or you could do it another way, right Intel?:p

Lemar, hit me up on AIM if you're on.

[oXYnary]

Where can you get the 6volt version of the 280BB? Is it the same as the Baja? The Baja is 35mm, but the no-name 280BB I have found seem to be 41mm (the can in length). I dont have enough room for a 41mm in my m18's setup without raising the CG (not willing to do).

Im also interested in knowing which lathes can trues such small motors.