Ok, this thread post is only the result of mass frustration after tonights racing, and should be seen as nothing but an opportunity to vent...

I'll admit, as of late I've been winning the lottery when it comes to great novak motors. Several have wicked numbers on them and work flawlessly. Tonight, however, was the complete opposite. My brand spanking new 13.5 gets the call to duty and as soon as I turn the power switch on and go to the transmitter, nothing but smoke. Shut it down, tear it out and notice she's melted... Now why would a motor that has zero time on it expire as soon as it gets lit up? Anyone else have this issue?

Anyhow, It will be in the mail, off to novak tomorrow morning, and I would expect the normal excellent customer service, and hopefully a new piece at my doorstep very soon... But more or less, it completely ruined my night! LOL

ok, done venting.

casper how can one novak motor be better than the other?

what do you mean you are winning the novak lottery?

what is this wicked numbers business you are talking about?

i was told all there motors are equal?

how do I get a "good" novak motor?

LOL....

Honestly, I guess you could say all the cans are pretty close to one another... Rotors on the other hand... That is a different story. Case in point, I have 2 rotors that give me almost identical numbers on a zubie meter, one is worth 10,000 more RPM than the other in EVERY can I put it in... 21.5, 17.5, 13.5 and 10.5. I have 2 rotors like that. the suprising part? The numbers are very average... nothing anyone would take a second look at anyhow.

As for the cans... Going off the resistance numbers that novak puts on them, I seem to be getting them at the lower end of the spectrum... when going by numbers used at Snowbirds anyhow.

Ask Buddy about any of my motors... LOL

42 seminole drive
debary fl 32713

send me one for the speedway race...i doubt i have any chance wiothout a good motor!

i thought heating lipos was supposed to make racing close? what can i do to my joe avg novak motor to make it faster?

hmmmmmmmmmmmmm

Really, I think every motor can be made to be pretty equal through timing and "boost" and gearing... But I just found it odd that a rotor alone could make the motor that much higher in RPM, watts, and obviously amp draw.

Casper i have the exact same situation you do. Two 21.5 cans.....resistances both at opposite ends of the spectrum...one a little high...the other right at the lower level....I have 6 rotors....one of them when put into either can makes all the difference. Its very interesting.

Kat with open motor rule you can get anyones motor and be fast!!!!

YOU won't be handicaped by HAVING to run those orange motors, freedom, that what you wanted, ya got it!!!

On a completely different note -- Casper what is CFH? Or at least that is what I think your avatar is.

Really, I think every motor can be made to be pretty equal through timing and "boost" and gearing... But I just found it odd that a rotor alone could make the motor that much higher in RPM, watts, and obviously amp draw.

Why should that be strange? We all know that the magnets in a "brushed" motor can make a lot a difference on performance.... why should the magnets on a brushless motor be any different?

casper make sure that the problem is not in the speed control. i talked to a guy a few weeks ago and he went thru 2 motors because the speed control was shot and it burnt the motors up.

Why should that be strange? We all know that the magnets in a "brushed" motor can make a lot a difference on performance.... why should the magnets on a brushless motor be any different?

Why is it strange? 2 rotors, same numbers off a zubie meter... one is worth (from my 10.5) 43320 RPM, 7.11 amps, 55 watts The second 32220 RPM, 1.95 amps, 15 watts. Same can, virtually identical rotors. what makes the first so much better when it meters the same? That's a huge swing from one to the next.

casper make sure that the problem is not in the speed control. i talked to a guy a few weeks ago and he went thru 2 motors because the speed control was shot and it burnt the motors up.

Speedo is good, put another motor on it afterwards without any issue.

something in those WATT and AMP numbers that I'd want to look more into. What does a 3rd rotor do?

7.11 amps, 55 watts
1.95 amps, 15 watts

could one of those rotors be slipping on the shaft!~

And you guys pick on the "Blue Brigade"!!! :rolleyes:


Ok, this thread post is only the result of mass frustration after tonights racing, and should be seen as nothing but an opportunity to vent...

I'll admit, as of late I've been winning the lottery when it comes to great novak motors. Several have wicked numbers on them and work flawlessly. Tonight, however, was the complete opposite. My brand spanking new 13.5 gets the call to duty and as soon as I turn the power switch on and go to the transmitter, nothing but smoke. Shut it down, tear it out and notice she's melted... Now why would a motor that has zero time on it expire as soon as it gets lit up? Anyone else have this issue?

Anyhow, It will be in the mail, off to novak tomorrow morning, and I would expect the normal excellent customer service, and hopefully a new piece at my doorstep very soon... But more or less, it completely ruined my night! LOL

ok, done venting.

something in those WATT and AMP numbers that I'd want to look more into. What does a 3rd rotor do?

7.11 amps, 55 watts
1.95 amps, 15 watts

could one of those rotors be slipping on the shaft!~



Actually out of the ten rotors I have, 2 of them give me really high numbers, the other 8 are all within a few hundred RPM and a watt or two away from each other..

Anyway, back to regular programming... LOL

Andy... Who's picking on anyone? :p

The "Blue" is always getting picked on cause of their ESC's smoking up occasionally. It does happen to ALL brands is what I'm trying to get accross. I have 4 of'em and so far, so good! ;) :thumbsup:

I actually had a sphere in the car when it happened... I had switched it with my Tekin before I ran it. No complaints with the blue stuff here! Only LRP I ever smoked was my own fault.

[QUOTE=casper60;2750083]Actually out of the ten rotors I have, 2 of them give me really high numbers, the other 8 are all within a few hundred RPM and a watt or two away from each other..

Maybe those rotors are timed zapped... LOL

Casper, check the diameter of your rotors. See if they are all the same.

Also, magnet slipage can be an issue. I had a motor that acted strange, it was slow on take off one week. I cound not find anything wrong. Next week same thing in the first qualifier but ran good. Second qualifier all was ok until the buzzer went off, pulled the trigger car rolled forward about a foot and stopped. Found that the magnet has slipped on the rotor shaft. funny things happen if the magnet can't keepup with the shaft.

we found a SLIPPING Rotor on a 8.5 motor at my LHS the other day.

This was in a 1/10th scale Losi Slider, and it acted like a slipping diff.

I grabbed the rear tires and had him pull the trigger, and it sounded like a slipping diff - EXCEPT the pinion and spur gear weren't MOVING.

You could hear the motor run, but the motor shaft didn't turn... Stuck a NEW rotor in it - and away it went!

LOL... Ok, the rotors or what they read, or how the motors run are not the issue.... all of them are in perfect working order...

The issue is the 13.5 that went up in smoke after taking it out of the package and putting it in the car without even running... focus.... LOL

You sure it was a new motor?? You may want to check the tolerances

yip, new... Just came from tower last friday

im just messin with ya, thought you were gettin fired up lol

Nooo... LOL (and I knew that, I would expect nothing less from you :p)

Actually, I just pulled it out of my pit box... here's what I found Circuit board is fine, wires are fine... 1 stator is melted, the other 2 are fine.... Manufacturing defect?

LOL... Ok, the rotors or what they read, or how the motors run are not the issue.... all of them are in perfect working order...

The issue is the 13.5 that went up in smoke after taking it out of the package and putting it in the car without even running... focus.... LOL


LOL Casper - it's not YOUR issue!! But it's a more interesting ISSUE! LOL

LOL... Yea, I know

I should have kept it under wraps... LOL

Kat with open motor rule you can get anyones motor and be fast!!!!

YOU won't be handicaped by HAVING to run those orange motors, freedom, that what you wanted, ya got it!!!


ron you just repeated the very reason why i like the open motor idea..

imagine if we were stuck with just novak motors and let's say billy bruce hit the lottery (again) and bought 50 rotors and 25 motors..he found one super duper legal motor that ran like no other novak the rest of the field had...

how cool would that be?

and the scenario is not a pipe dream after reading this very thread!

we all know there are a few quality control issues...and some guys are scoring monster novak motors....i'm sure every company has those issues and every brushless motor will not be equal....the good news is...racing is still just as close in florida and we all get to run what we brung...

:thumbsup:


casper just in case you think i'm busting your chops i'm not...

just a lil sarcasm to feed the fire..i know there are duds and studs but if i say there is a problem i'm the devil...so i like to read about similar issues i had from other racers.

No, I know exactly what your saying Kat, but honestly, every good motor I've bought has been from Tower, the lone reason I keep going back. I'm just finally starting to get into the LRP's and Trinity motors. You are right though, no matter what happens, some motors will be better than others, same is true with batteries (yes even Lipo). Once in awhile even a blind squirrel finds a nut... luckily I have been able to find a few all in the same spot.

Do me a favor and pull the endbell off and see if by chance you might have used too long of motor screws that penetrated the windings. I have seen guys at my local track do this very thing and usually ends up in smoke.

Do me a favor and pull the endbell off and see if by chance you might have used too long of motor screws that penetrated the windings. I have seen guys at my local track do this very thing and usually ends up in smoke.



I did think of that. On my old cars, the pod plates were ten times wider than they needed to be, so I had to use longer motor screws, when I changed cars, I went back the shorter screws . I thought maybe I had grabbed the wrong ones, but that wasn't the issue..

I had one do the same thing when i sent it in they said it was tamperd with . This was a brand new motor took it out of the package put it in and let the smoke out then it did not run was not too happy . Thanks Ken

I had one do the same thing when i sent it in they said it was tamperd with . This was a brand new motor took it out of the package put it in and let the smoke out then it did not run was not too happy . Thanks Ken


this is called the blame game..last one to get blamed loses!:hat:

Casper, I assume that you have returned this motor to us for replacement.

I just forwarded your comments to Bob. If he has any inputs about what could cause your problem, I'll let you know.

Why is it strange? 2 rotors, same numbers off a zubie meter... one is worth (from my 10.5) 43320 RPM, 7.11 amps, 55 watts The second 32220 RPM, 1.95 amps, 15 watts. Same can, virtually identical rotors. what makes the first so much better when it meters the same? That's a huge swing from one to the next.

Could be the slippage of the magnet on the shaft, straightness of the shaft or any other number of things.

Novak Two..

I have not sent it off yet. I have been slammed building cars for customers as well as trying to get some of my own stuff done. I will probably be sending it out tomorrow or Monday at the latest.

Hank..

Well, all I can really say is if those rotors are "problem" rotors, I want everyone to send them to me... LOL. I hardly consider a rotor that makes a motor run like a raped ape a problem. In fact I wish I had a stockpile of them!

Well, all I can really say is if those rotors are "problem" rotors, I want everyone to send them to me... LOL. I hardly consider a rotor that makes a motor run like a raped ape a problem. In fact I wish I had a stockpile of them!

Who said they were problem rotors? All we said was the reasons that one could perform better then others. Not any different then why some brushed motors run better then others.