High wattage coils

[rwechsler]

Get ready for a wall of text...

So lately, I've been having trouble with finding a coil/battery setup that's truly satisfying. My normal setup was 2.5ohms at 6v (using 2 stacked 3.2v AW LiFePo4s), which is 14.4 watts. I get all the flavor I could ask for, vapor production is great compared to just about anything else out there I've tried (obviously there are exceptions, but none worth noting), and there's a decent amount of throat hit, but overall, it's been leaving my unsatisfied. So I figured that 14.4 watts was about as high as I could push a coil, but boy was I wrong. So my first test with a HIGH wattage coil was a 1.5ohm coil (using 36g kanthal) in my iAtty at 6v. Vapor was definitely hot enough, but I couldn't get it to wick consistently without flooding while not in use, and I sure as hell couldn't chain vape it. Flavor was strong using ody wick (much more so than with nextel), but I knew I needed to change up my setup to really make it perfect. So last night, with coil that metered at 2.5ohms when I first installed it (about a week old, so it probably was closer to 2.7ish ohms after oxidization), I decided to try it at 7.4v with 2 freshly charged AW IMR 18490s in my UFS mode Ody for a 22ish watt vape. I tested the voltage both unloaded (8.4v) and under load (7.4v), and it shure felt as high as it was. Results were pretty much the same as with the iAtty, flavor was good (not as good though, but the coil was much older), vapor production was tremendous (better than iAtty), and it did wick better, but because my UFS tank was almost empty, I had to rely on the normal UFS juice control mechanism, which I find wicks much less consistently than just opening up the mouthpiece on the Ody. So I decided to pull an all nighter to build a 20+ wattage coil from scratch rather than reappropriating an old 6v coil. I made up a 2.5ohm coil and installed it in a short mode ody w/ GGTS base (crucial to get it to wick properly) with a mix of 2/3 COV butterscotch and 1/3 COV vanilla cream, and all I can say is that I've been nic sick since first installing the coil 12 hours ago! Vapor is HOT! So hot that only one of the 5 or 6 of my friends who've tried it could use it without coughing. I think it's just right, but it's not for everyone. I don't love the flavor of butterscotch or vanilla cream, it's too strong for me, but the ridiculous wattage mutes it just the tinniest bit, rendering it perfect for me. Vapor production is just disgusting. I've never blown such huge clouds with any other device.

I'm not posting this to brag about how big of clouds I can blow, or why my coil is better than every other coil in the game right now, it's really just to serve as food for thought. I'd also like to hear everyone's opinions as to WHY and HOW Imeo's rebuildables are the only atomizers (both rebuildable and chinese) that can handle a seemingly infinite amount of wattage running through them? 24 watts!!!?? You can't even get 12 or 13 out of any other atomizer! So why Odysseus and the iAtty? Anyways, I hope others out there give this a try, it's a pretty unique vaping experience.

 

[Grant1]

Sounds Brilliant, and what wick do you use RW, have you/do you ever use Stainless steel mesh wicks, and if you dont can you tell me why you dont or what the disadvantages are??
All the best
Grant

 

[Huffelpuff]

I can't chime in as I'm a newb wicker but am eager to hear the feedback on this. I've got the basics down pat but have yet to get into higher voltage wicks.

 

[silentt]

Sounds Brilliant, and what wick do you use RW, have you/do you ever use Stainless steel mesh wicks, and if you dont can you tell me why you dont or what the disadvantages are??
All the best
Grant

I never used ss mesh in the ody but I did in my old iAtty. The throat hit was much better using the ss mesh and wicking was no problem. If I'm not mistaken there was a how-to and pictures in the iAtty thread that I followed.


Also I've never traveled in the 7.4v range yet, I guess I'm missing out. I see a bunch of people ranting about it, one day I will try it out.

 

[rwechsler]

I'm gna make a SS mesh iAtty coil tonight. Once broken in, SS mesh provides for the best flavor of any other wicking material. In my experience with it, it doesn't hold up well at 6v, so maybe I'll try a 1ohm coil at 3.7v in the iAtty with it.

7.4 is great, only real drawback is that coils don't hold up for too long in 7.4v devices, too much strain on the r wire.

 

[Killjoy1]

rw, have you tried the dual coil setup? One of my favorite HV Ody setups was a 1 ohm dual coil at 6V (probably closer to 5V under load, but that's still 25 watts and a heck of a vape!). That particular coil lasted me through more than 30ml of juice at that voltage and was still vaping well when I tore it down to try something different. I bet it would have held up well to 7.4, too, though I didn't try it

 

[rwechsler]

I've only tried .8-1.0 at 3.7 in dripping mode, but I actually have a dual coil made up that I've been saving! I think it's in the ballpark of 1.1-1.3, so that should be pretty perfect at 7.4v

 

[fright88]

Wow maybe it is my juice but I have wicking issues even at 6v with 3.4 ohm coils when I chain vape. Maybe I need to thin it down a bit.

 

[rwechsler]

Here's a link to my newest youtube. I don't really go over the actual construction of the coils, but I talk about each of them and most importantly, blow insanely fat clouds

 

[Killjoy1]

Wow maybe it is my juice but I have wicking issues even at 6v with 3.4 ohm coils when I chain vape. Maybe I need to thin it down a bit.

Using the stock wick or something else? I've been running mostly AVE juices in my Ody lately and most of them have worked fine for me (doubled stock wick, one in ceramic's channels and one sticking out in tank)

 

[Zogem]

Basically watts is an oversimplification of a concept used generally and probably incorrectly in the industry.

Watts can be directly converted to BTU... units of heat. The distribution of the heat is important. The more surface area that the energy is spread across the cooler any given point will be.

V^2 / R = W, but the surface area of R controls how much W is at any given point.. a concept often overlooked.

-Z

 

[rwechsler]

so will a coil with more surface area produce more vapor even though it's average heat is lower at any given point when compared to a shorter coil of equal resistance?

 

[Zogem]

so will a coil with more surface area produce more vapor even though it's average heat is lower at any given point when compared to a shorter coil of equal resistance?

I would expect so. I doubt it's a linear function.. The point where a given area is interacting with the fluid is a band, it's not a specific point. If the average band is low it's going to be cool and weak, if the average band is high it will be burnt.

If you lowered the surface area the the band would rise.

I'm trying to come up with a way to mentally picture this like resistance and hoses is often used, but I'm not coming up with one yet. Hope it makes some sense.

-Z

 

[rwechsler]

Interestinggg
So I think that the gauge of the wire really does make a considerable difference in overall performance. For the record, I basically only use 34g Kanthal A (straight from Kanthal.com) for coils 2.2ohms+, which is what I've had the best results with so far. I've tried using 36g for high voltage coils, but they always blow too fast. 32 doesn't produce as much vapor as I can never squeeze enough coils in. I'll keep experimenting though, there's still so much for me to learn and share with the community.
For now, I'm vaping on my iAtty with a SS mesh wick, which is underperforming to my standards, but I assume it's b/c I did such a garbage job on wrapping the coil (not so adept with the ss, but I'll get it next time!).

 

[Zogem]

It's a generalization. One less general "than 10 watts is key".

Remember it's all just electrons on a wire, and it's all a balancing act. You are venturing into an area many vapors never go, and one that I find incredibly interesting - The physics of it.

-Z

 

[rwechsler]

That's why I'm so drawn to it. I love the idea of working towards pioneering new setups that were commonly accepted as plain impossible, and using those setups to establish a whole new standard of vaping. Imeo is a genius for creating Odysseus, plain and simple. But the fact that we still don't know what it's capable of is truly inspiring.

When I get my mastech dc ac converter setup to my passthru, I'm taking this to a whole new level, the likes of which nobody has seen before.

 

[fright88]

Using the stock wick or something else? I've been running mostly AVE juices in my Ody lately and most of them have worked fine for me (doubled stock wick, one in ceramic's channels and one sticking out in tank)

Maybe I should clarify just a bit. by wicking issues I mean when I get into a heavy chain vaping session even with juice controll fully open I need to drip every now and then to keep up. Although when I do this I can burn a pair of A Lipo4's in about an hour and a half or a kicked 18650 in a bit over an hour.

Normally if I keep on the juice controll I have no issues although I find if I keep my juice controll open to where I get constant good feed if I set it down for a couple minutes I get juice leaking through my center post. If I remember to close the juice controll when I stop for a bit and re-open when I go to vape I am fine.

I have tried new wick with 2 pieces down channels 1 piece down channel 1 piece free floating, 1 piece down channels short piece only in the ceramic. I have also tried 2 pieces of iAtty wick. 1 piece iatty wick 1 piece Ody wick. I am trying nextel again now after having modified my ceramic a bit more.

Just a note I am not complaining. I love my Ody. It is hands down far superior to everything else I have tried. Attys take to much dripping for my liking and I burn cartos out in about a day. I am thinking Ody in UFS will be the ultimate setup for me once I can scrounge up another UFS top piece. I am thinking the ability to re-feed the juice that went down the center post will work really well for me.

 

[Killjoy1]

Yeah, that's some heavy chain-vapin'. I had misunderstood you, but I getcha, now. I've vaped my coil dry during some heavy sessions, but they were nothing like that

 

[ecosnige]

I had been playing about with a dripping rebuild-able not gg stuff but a uk made one, using ss mesh as the actual coil 2mm by 6cm strip folded in half to make a 1mm strip then coiled onto the fibreglass wick this was insane flavour and vapour worked out about 2 ish ohms if i remember correctly.But this would be a good thing to try and build i will have to give one a go on the ody.

But basically it made more surface area less burn etc and worked really well maybe you should try one, i did try explain this to you before but dont know if you understood what i meant.

 

[Killjoy1]

You're talking about the ULRA concept, right? Got any links to good info on how-to, I haven't seen much