Novak HV-Motor's???

[E-Revonut]

Originally Posted by Takedown

That makes total sense...

What makes total sense? That it's a 2 pole design or that I have one with a snapped shaft The Novak HV4.5 was what introduced me to BL, got it a few months before they released the 5mm shaft rotors. I'm actually pretty sure I was one of the first to get the new shaft after pre-ordering and waiting forever after I snapped this one. Honestly the HV isn't a horrible setup. I'm planning on racing this summer and if the track goes with ROAR rules and only allows 4s and approved motors I will most likely get another, prolly the 5.5, but I hope that's not the case as I like my MMM/Neu 5s much better! Sorry for the ramble

[Takedown]

Haha ya, feigao is what introduced me to the brushless scene way back in 2004. I thought they were the sh** until I discovered how nice my hacker c50 maxx was. I have never tried lehner or neu yet. I plan to try lehner very shortly.

[himalaya]

Originally Posted by What's_nitro?

FWIW, if you ever need to figure out how many poles an inrunner motor has; Remove the rotor from the can, roll it on a flat metal surface, note how many times it "sticks" in one revolution.

Actually you can know the pole number WITHOUT OPENNING the can.
Just rotate the motor shaft, feel how many "detent" in a whole 360 degree round turn.

2-pole rotor will feel 6 detents, that is, 2 polesX 3 stator phases= 6 sticky positions.

4-pole motor will feel 12 detents, same rule, no matter it has a slotted stator or not.

[jayjay283]

why debate it ? its a pathetic tiny rotor that should be in a traxxas VXL motor but they claim "HV" its just a marketing scheme to get you to buy a $270 inferior product.......................................... NOVAK BOOO

[What's_nitro?]

Actually, it will not work with slotless motors. At least none I've seen...

[SpEEdyBL]

Originally Posted by jayjay283

why debate it ? its a pathetic tiny rotor that should be in a traxxas VXL motor but they claim "HV" its just a marketing scheme to get you to buy a $270 inferior product.......................................... NOVAK BOOO

Without debate, people still will not be correctly informed on which to buy. Statements like that look like complete trash without any facts to back it up.

[suicideneil]

Fact- novak hvmaxx is not hv, its only 4s.
Fact- its old as the emaxx 3906 almost- past its prime and should have been replaced years ago; castle and tekin are way ahead of the game, as are losi and hobby city etc.
Fact- $270 is too much for what you get compared to the MMM systems (power and versatility).
Fact - novak rely on the myth that sensored is best, when it clearly isnt anymore. If only Aveox were still into R/C then they would kick both novak and castles ass's (think sensored neus....).
Fact- I've had both, and I prefer the MMM to the Novak- you just cant run a hvmaxx in anything heavier than a stock emaxx or erevo and expect decent topspeed or power. Wheelies are good upto about half throttle (if that), but I could only manage 20-25mph with sensible gearing to keep the temps in check. Its about time novak pulled their finger out and released a true 1/8 scale system.

[BrianG]

Originally Posted by suicideneil

Fact- novak hvmaxx is not hv, its only 4s....

I guess it could be considered HV compared to the rest of their systems.

[suicideneil]

Its all relative I guess- but comapred to the stock evx on the emaxx at the time, it was the same voltage, yet they didnt call it the HVevx.. Like thingy said, its all marketing- catchy name = sales. When they do eventually replace the hvmaxx (I believe early this year has been mentioned by novaktwo), if they make it a 6s lipo system that would be good and just about worthy of the HV title. Depends whats concidered HV in DC electronics?...

[JThiessen]

Originally Posted by suicideneil

Fact- novak hvmaxx is not hv, its only 4s.
Fact- its old as the emaxx 3906 almost- past its prime and should have been replaced years ago; castle and tekin are way ahead of the game, as are losi and hobby city etc.
Fact- $270 is too much for what you get compared to the MMM systems (power and versatility).
Fact - novak rely on the myth that sensored is best, when it clearly isnt anymore. If only Aveox were still into R/C then they would kick both novak and castles ass's (think sensored neus....).
Fact- I've had both, and I prefer the MMM to the Novak- you just cant run a hvmaxx in anything heavier than a stock emaxx or erevo and expect decent topspeed or power. Wheelies are good upto about half throttle (if that), but I could only manage 20-25mph with sensible gearing to keep the temps in check. Its about time novak pulled their finger out and released a true 1/8 scale system.

The above statements were 90% opinion. Not saying the opinion is right or wrong, just that it was not all facts.

[suicideneil]

Umm, nope, all facts really

You could argue about the HV or not HV thing (16.8v isnt very high voltage though compared to one of Lutach's 10s escs for example).

The hvmax IS almost as old as the emaxx itself, and other firms are ahead of the game with their sensorless designs that offer much more power (say ~1500watts compared to the hvmaxx's ~500-800 or so). Cant argue about the versatility issue- you can run any motor you like on the MMM etc.

$270 is alot of money for an old system thats just been given a few programming tweaks and a 5mm rotor, where as $300 nets you the latest and greatest (allbeit with teething issues that are now fixed).

Novak DO rely on the myth that sensored is best, theres enough speil about it on their website and the all the marketing we've all seen over the years.

And I have owned both systems as such, and the MMM is so much better for all the stated reasons- you cant put the hvmaxx in anything heavier than a stock erevo or emaxx and expect it to perform the same, it just cant produce the power required or pull the gearing that we'd like/need to do the vehicle justice.

If anyone would like to prove me wrong or rubbish my informed opinions Im more than happy to entertain a debate, which is what this thread is all about- why is the hvmaxx so weak compared to other systems (or ' why are other systems so much better than the hvmaxx? ' )...

No denying that the CC combo is a much better system and has pushed the Novak to the obsolete stage,but

why is the hvmaxx so weak compared to other systems

I have to say this,on 4s the 4.5 is not a weak system.Even compared to the CC combo.The 6.5, I can imagine, is much weaker.But you cannot generally compare the 2 motors,like what gets done.I'm sure if you had a 4.5 you would see a substantial difference in power.Mine always did great even pushing 47 in my Erevo,on my bashing gears 14/68.I only managed to thermal it once,that was because I pushed it as hard as I could till it did.I don't think anyone could really be unhappy with 47 on 4s,with a stable system,even with the MMM combo.But with whats available today the price would have to drop below 200 for the system for me to consider it a value. BTW my 4.5 is now perfectly happy at home in my Rustler,where it may or may not be better suited .

[E-Revonut]

I've said it before and I'll say it again! The weak link with the HV-MAXX is the esc! Even with their fan on it, it can't handle the current draw, it heats up very fast and can't pull any kind of gearing even on a light truck. I ran one on my G2R with a hummer SUT body. The heatsink and fan completely stuck through the bed of the truck, no lack of airflow there, and it still fried. When it worked I honestly liked the power, it was quicker and just as fast as a nitro, with a little more power than a trx 3.3 motor. If Novak could build an esc that can handle their motors it wouldn't be so bad! If you want controlable power for racing the HV motors hooked to a MMM might not be bad. Although Neu is coming out with a 1400 series motor that would be better or get a Medusa.

[BrianG]

It's just too bad their HV ESC can't handle 5s (or can they?). Then you could use the 6.5 motor and just gear down. The power would be about the same as the 4.5 on 4s, but run cooler because of the reduced current.

I think we are all just spoiled with our ~1,000w+ setups. The HV would probably suit the majority of us if used in a light buggy or in something like the CRT.5. But, we are used to having trie shredding torque AND high top speed. The HV can do either, bot not both without excessive heat geared high for top end, or lack of top speed geared low for torque.

Plus, remember that when the HV was the top dog, NiMH was much more common. Then, the cells were the limiting factor helping the ESC. Now, lipos have so much more current capability without dropping voltage, that the ESC is the weak link because it can't handle the sustained power that a good voltage and high current can generate.

[Gee]

You know I usually stay out of these because there are people that flame the Novak product just because they don't like the name or have heard from someone else, that their uncles distant relative had a problem with one. To comment on how disappointing a system is you should have first hand experience running it first. If you are disappointed in the Novak then you did not read the products description, instruction, and posted addemdums to that product. You are not using it for what the products was made for. I still use the Novak HV in my e-maxx. I didn't pay the 270 dollar price tag, I have never needed a 5mm shaft any of the HV motors I have had. It is run on 4s and perfromce exaclty as the product is described to if not better then the adverstivement indicates. That is what I expect from it. Not 70mhp 6s capabilities that are not advertised it being capable of doing. I am far from disappionted in it. If I went and spent 500 on a setup that when I put it in my emaxx and I had to gear it down so low to get the same speed and maybe torque that I get from my 4.5. Yeah I would be disappoointed in that product. But more in myself for buying the wrong setup. I do not expect the same from the 4.5 as I do from my 1515 1y. That is just called a little common sense. If you are disappointed then do some research before your next purchase. It not always the product that is to blame. You should get the correct setup for a 15lbs emaxx. The Novak HV system was the only plug and play system for the longest time. It was the best available. In 1965 the Mustang was the most sold vehicle in america. Making it the best (debatable but bear with me) in 1965. Well it isn't anymore but there are still a lot of people that love to drive it today. They are far from disappointed in its performance. Would you expect the dash to light up in all digital and voice telling you door is ajar. Different product and different time. Know what you are buying before you buy it and you will not be disappointed in it or yourself for making the wrong purchase.


Just an FYI:
In electric power transmission engineering, high voltage is usually considered any voltage over approximately 35,000 volts. This is a classification based on the design of apparatus and insulation.

The International Electrotechnical Commission and its national counterparts (IET, IEEE, VDE, etc.) define high voltage circuits as those with more than 1000 V for alternating current and at least 1500 V for direct current, and distinguish it from low voltage (50–1000 V AC or 120–1500 V DC) and extra low voltage (<50 V AC or <120 V DC) circuits. This is in the context of building wiring and the safety of electrical apparatus.

In the United States 2005 National Electrical Code (NEC), high voltage is any voltage over 600 V (article 490.2). British Standard BS 7671:2008 defines high voltage as any voltage difference between conductors that is higher than 1000 V AC or 1500 V ripple-free DC, or any voltage difference between a conductor and Earth that is higher than 600 V AC or 900 V ripple-free DC.