VERSION 2.5 Vision ViVi Nova Is IN STOCK Now, VIVI NOVA Review Thread
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I agree that the tank needs nothing. Its the heads that are hit or miss. The tank itself is worth $16. Just an awesome design all the way around. I hope the new heads follow suit which I'm sure they will be a lot better considering how much attention they got. And even if there are still a few duds, time for me to learn how to rebuild them.
Thanks, devast, for posting this!
All my "heads' suffer from this. In fact, it's unreasonable to think this is not a design flaw, but rather a "hit or miss" eventuality. Guess I'll stop and wait for a fix.
I guess i found out why does my heads taste like rubber... guess what, because it's burning rubber...
I just had to dissect one head, and it's really obvious where's the problem.
I'm really
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All my "heads' suffer from this. In fact, it's unreasonable to think this is not a design flaw, but rather a "hit or miss" eventuality. Guess I'll stop and wait for a fix.
I clean mine after the first two tanks...removed one of the five wicks and reassembled. Works much much better clean and can chain vape...slightly muted but still tastes like Torque 56. Happy but it's not as food as the Stardust. The throat hit is still less. Btw i can now up the voltage ro 5+ volts with no burnt taste. I vape it like my stardust horizal or nearly so.
Give it a try.
Ymmv
Arthur
Give it a try.
Ymmv
Arthur
Even I like it! Just trying to get some wick and wire to build my own coil until the new heads come out. Also looking forward to metal tubes, they need a window though. That would be difficult and expensive I assume. Been busy lately. No time to research anything much less wicks and windows...
my viv nova tank looks like shattered glass. it doesnt leak but it looks like a windshield thats been crushed. ive used almost 2 tanks of apple liquid in it.
Sounds cool I'll trade you for a tank with vertical streaking. Didn't come that way but my liquid is about 10% cinnamon flavor.
I have made 2 separate new coils and wicks for my Nova using 34ga Nichrome wire and 2mm wicks. Both units still gave me the nasty burnt rubber taste so I thought that maybe all I need to do is limit the heat getting to the bottom connection area.
Sooooo... On my third attempt I took some heavier 32ga wire and twisted it onto my 34ga just below the coil area. This should force only the coils to get hot and thus stop the burning of the rubber seal. Right!?
Nope. I'm still getting the burning rubber taste. Granted it's a little less now but it's still predominately there and I'm not about to inhale this stuff throughout a full tank in hopes that it goes away. I quit smoking for a reason if you know what I mean. I had to go with 6 coils to get a 2.6 ohm due to the shorter O.A. coil with the extra wire leads.
Anyhow, I'm at a loss here. I really really want to use this Nova tank. The over all design of these are perfect and the ease of rebuilding the heads couldn't be any easier. I just don't understand why the muted flavor and burning rubber. If anyone has any suggestions I'm all ears. I've tried everything in the book and then some to get this Nova to work but it just ain't cooperating with me.
BTW, mwa - the needle and twisting the wick in process works slick a chit! I do have to squeeze the coils down a little to get them a little tighter against the wick, I think my needle is a little to large. But the uniformity of my coils is so much better now. 
Sooooo... On my third attempt I took some heavier 32ga wire and twisted it onto my 34ga just below the coil area. This should force only the coils to get hot and thus stop the burning of the rubber seal. Right!?
Nope. I'm still getting the burning rubber taste. Granted it's a little less now but it's still predominately there and I'm not about to inhale this stuff throughout a full tank in hopes that it goes away. I quit smoking for a reason if you know what I mean. I had to go with 6 coils to get a 2.6 ohm due to the shorter O.A. coil with the extra wire leads.
Anyhow, I'm at a loss here. I really really want to use this Nova tank. The over all design of these are perfect and the ease of rebuilding the heads couldn't be any easier. I just don't understand why the muted flavor and burning rubber. If anyone has any suggestions I'm all ears. I've tried everything in the book and then some to get this Nova to work but it just ain't cooperating with me.
BTW, mwa - the needle and twisting the wick in process works slick a chit!
I do have to squeeze the coils down a little to get them a little tighter against the wick, I think my needle is a little to large. But the uniformity of my coils is so much better now.
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What about using no resistance wire for the leads? Also, perhaps a ceramic material would be better than whatever that little plastic looking piece is made of? I went through 18 different heads (6 units) last night with varying degrees of failure. Great overall design that holds much promise. I just can't imagine that an easy solution isn't forthcoming.
@ Vapspaz:
I think the higher the resistance, the more the wire will heat up, so if you twist more wire together, the twisted area would heat up more, not less? Just wondering... I mean, if you have *no* resistance, there'd be no heat at all.
Also - if your gasket is burned already from previous attempts, that could be causing the bad taste?
I think the higher the resistance, the more the wire will heat up, so if you twist more wire together, the twisted area would heat up more, not less? Just wondering... I mean, if you have *no* resistance, there'd be no heat at all.
Also - if your gasket is burned already from previous attempts, that could be causing the bad taste?
Briar - I'm shocked! LOL I thought you were an engineer?
Thinner wire causes more resistance than heavier wire. Or in my case twisted wires creating a heavier wire.
Think of it as a garden hose. If you pinch the hose almost off (smaller Diameter) you are restricting the flow thus creating more resistance. Electricity works the same way. The more room you give it to flow the lower the resistance.
I did think about the pre burned areas on the rubber cup possibly causing the same taste but it's just to strong to be causing it. The burn marks on the rubber are very tiny. I actually find it hard to believe this is the cause but looking at the design, it's the only thing possible. And I've removed the upper silicon cup just to make sure.
Pete - I would try no resistance wire if I had some but I just used what I had on hand. By doing it the way I did it should do the same thing and only allow the coil area to super heat. I'm not sure about a ceramic material being used in this design. It needs to be flexible to allow the wires to squeeze past. What ever is used needs to be a super high temp flexible material.
Thinner wire causes more resistance than heavier wire. Or in my case twisted wires creating a heavier wire.
Think of it as a garden hose. If you pinch the hose almost off (smaller Diameter) you are restricting the flow thus creating more resistance. Electricity works the same way. The more room you give it to flow the lower the resistance.
I did think about the pre burned areas on the rubber cup possibly causing the same taste but it's just to strong to be causing it. The burn marks on the rubber are very tiny. I actually find it hard to believe this is the cause but looking at the design, it's the only thing possible. And I've removed the upper silicon cup just to make sure.
Pete - I would try no resistance wire if I had some but I just used what I had on hand. By doing it the way I did it should do the same thing and only allow the coil area to super heat. I'm not sure about a ceramic material being used in this design. It needs to be flexible to allow the wires to squeeze past. What ever is used needs to be a super high temp flexible material.
@ Vapspaz:
I think the higher the resistance, the more the wire will heat up, so if you twist more wire together, the twisted area would heat up more, not less? Just wondering... I mean, if you have *no* resistance, there'd be no heat at all.
Also - if your gasket is burned already from previous attempts, that could be causing the bad taste?
I think this is not correct - the thicker the wire, the lower the resistance, at least in theory, right? So the idea of using thicker wire for the leads was a good one, perhaps insufficient.
Then, the singed area on the gasket is so very small, I doubt it would affect taste in lasting manner if the burning stops. But the burning will not stop.
I also see the metal of the head tube itself gets really hot from being in contact with heating wire which probably affects matters.
I think the best workaround would be to splice the wire with non-resistance wire for the leads. I can't do it, I don't have enough dexterity
Please, maybe someone who has an Ody or something similar so thence uses non-resisted wire routinely, please try this! @badkolo et Co: this one is so close to an awesome ultimate vaping thingie! Please, please bring us that head fix
I've never been frustrated with a vaping thingie - I either decided it sucked and tossed it and moved on, or I found it enjoyable or at least usable. Now this... this is something I really can't use right now but I believe I will love once it's fixed!
You are correct. The thicker with wire, the lower the resistance. I think you were both saying the same thing. Just worded different. Or maybe I read it wrong??
Briar - I'm shocked! LOL I thought you were an engineer?
Thinner wire causes more resistance than heavier wire. Or in my case twisted wires creating a heavier wire.
Think of it as a garden hose. If you pinch the hose almost off (smaller Diameter) you are restricting the flow thus creating more resistance. Electricity works the same way. The more room you give it to flow the lower the resistance.
Astrophysicist with a cosmological bent. I played with theoretical equations describing space. Empty space. Well, occasional plasma.
Definitely not an electrical engineer. Don't have an engineering bone in my body. In fact, I flunked my one and only required EE course... Just don't have a feel for these things. Besides, I haven't worked in the field for a loooooong time. I'm an artist now. A hungry one. 
I was thinking in terms of resistivity - you know, multiply resistivity by area and you get cross-section resistance, and since resistivity is a quality of materials (isn't it?), it would seem that you should get greater resistance, not smaller...
But you are right, of course, since greater cross section provides more pathways for the current to flow. That's supposed to explain it...
On the other hand, I'm still not sure why the two statements do not contradict each other. Analogies are all well and good, but: why does the hose analogy work and the friction analogy doesn't? I mean, if you have a certain coefficient of friction between two materials, if you increase the area of contact, friction increases...
On the third hand, resistance is caused by interaction of EM fields between scooting electrons and more-or-less static atoms. When you increase the cross-section, it's not like you have the same number of atoms stretched across more space - that lattice of the metal is the same across the entire cross-section. It's not at all the same as water in the pipe, where the only resistance is provided by the wall of the pipe, and if you increase the cross section of the pipe, the circumference of the cross section circle does not increase at the same rate as the cross-section of the water passing through. So what if there is a greater area available for the same number of electrons to pass through in a given period of time? The number of "resisting" atoms is the same at each path...
Well, never mind - you see the difference between a theorist and an experimentalist/engineer. I always complicate things.
Stopped using my 2.4 the other day because it just wasnt satisfying..way too cool and lackluster flavor..gonna take it apart later..when i put the 2.8 head on it was popping hot liquid pretty violently out the top as soon as i hit the button and the vape tasted terrible..took it apart and the coil was sitting against the metal tube on one side..tho the wicks were at an even length after coming out of the sides..put it in the center with a paper clip and got short wicks on one side and long on other lol..but it stopped popping
It seemed to need more liquid..not much flavor and hard to get a big hit..took it apart again and took out the top wick that was just laying in there and unwound the other wicks.. put a toothpick in the one air hole and broke it off, (leaving enough to pull it out if needed)to ease up that airy hit...been vaping it for 2 days now and its working great. ohms way off on those 2...2.4 measured out to 3.6 and 2.8 measured out to 3.2..still havent opened the 1.8
When you get a head working right these things are phenomenal...no leaks at all..dropped it at work twice and no damage. Got some kanthal on the way to DIY the 2.4 head..fun stuff..was well worth the 15 bux
It seemed to need more liquid..not much flavor and hard to get a big hit..took it apart again and took out the top wick that was just laying in there and unwound the other wicks.. put a toothpick in the one air hole and broke it off, (leaving enough to pull it out if needed)to ease up that airy hit...been vaping it for 2 days now and its working great. ohms way off on those 2...2.4 measured out to 3.6 and 2.8 measured out to 3.2..still havent opened the 1.8
When you get a head working right these things are phenomenal...no leaks at all..dropped it at work twice and no damage. Got some kanthal on the way to DIY the 2.4 head..fun stuff..was well worth the 15 bux
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You are soooooo right. And of course it *is* settled. The resistance *is* lower. I just have trouble accepting it - don't confuse me with reality!
Yeah, but, then, that being the case, why doesn't Vapspaz's fix fix things?..
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