Same ohm, burnt hit vs non burnt hit

[wrice4]

So I have a question:
I built a 1.2 ohm single coil for my kayfun lite, and after 15watts it tastes burnt.

I just watched a rip trippers video and he built a 1.2ohm single coil build on the tugboat v2 RDA, and is vaping it at 40watts and he says its perfect.

So my question is.....if they are both a single 1.2ohm build. How can he go up to 40watts and it taste great, but I can't go past 15w? Is it because the airflow in the RDA is by far superior than in the bottom of my kayfun lite?

I just get confused on how some of my carto tanks....iclear 30, nautilus, aerotank, etc...can only go up to 12 watts or so then taste burnt, but others do it at 20-25 watts and say it tastes great. Same thing with my RDAs....dripping same ohm dual cole at 35-40w, but others with same ohm dual coil can go double that.

 

[PapaSloth]

It has to do with juice flow and air flow. The wick needs to be kept saturated in the vicinity of the coil, and air has to be moving over the coil, drawing the vaporized juice away from the heat before it burns. If either of those things don't work, you get a burnt juice taste (or worse, a burnt cotton taste). Rip's tugboat has much better air flow, and he drips directly onto the cotton to make sure the wick is fully saturated before he vapes, so he can handle more Wattage (heat) than you can with a Kayfun.

Also, air flowing over the coil cools the coil, so it doesn't cause the juice to burn as fast. Once again, more air allows for more Wattage.

 

[wonner]

What is your nicotine content. When Rip is pushing 30 watts through an RDA, you can bet it ain't 18mg.

 

[edyle]

So I have a question:
I built a 1.2 ohm single coil for my kayfun lite, and after 15watts it tastes burnt.

I just watched a rip trippers video and he built a 1.2ohm single coil build on the tugboat v2 RDA, and is vaping it at 40watts and he says its perfect.

So my question is.....if they are both a single 1.2ohm build. How can he go up to 40watts and it taste great, but I can't go past 15w? Is it because the airflow in the RDA is by far superior than in the bottom of my kayfun lite?

I just get confused on how some of my carto tanks....iclear 30, nautilus, aerotank, etc...can only go up to 12 watts or so then taste burnt, but others do it at 20-25 watts and say it tastes great. Same thing with my RDAs....dripping same ohm dual cole at 35-40w, but others with same ohm dual coil can go double that.

Wire GAUGE for starters.

Thicker wire, for the same ohms, needs more power.

 

[wrice4]

Thanks for all of the responses. I figured it was mostly an air flow thing, and I did not think of the wire thickness. My nicotine content is 6% in half my tanks, and 0 in my other tanks and 0 in my drippers. I mostly use 26-28 guage wire.

 

[Smann245]

Wire gauge and coil diameter. Using 100% vg in my kayfun. Using a 5/64 drill bit for wrapping the coil was good up to 9.5 watts. Over that it was starving for juice and tasted burnt. Moved up to 7/64 bit and I can chain vape at my MVP's limit of 11 watts with no issue. We'll see what happens when the mailman drops off my DNA 30 device. Bigger coil means more wick in coil. I guarantee you can tune your Kayfun setup to handle more power.

 

[wrice4]

Wire gauge and coil diameter. Using 100% vg in my kayfun. Using a 5/64 drill bit for wrapping the coil was good up to 9.5 watts. Over that it was starving for juice and tasted burnt. Moved up to 7/64 bit and I can chain vape at my MVP's limit of 11 watts with no issue. We'll see what happens when the mailman drops off my DNA 30 device. Bigger coil means more wick in coil. I guarantee you can tune your Kayfun setup to handle more power.

Understandable. I use a 9/64 bit and vape about 15w.

 

[PapaSloth]

In my stock KFL+V2 clone, I could only go down to 1.3 Ohms (13.5W) without my juice tasting burnt. Then, I drilled out the air hole to increase air flow, and deepened the juice channels with a diamond burr to improve juice flow. That allowed me to go down to 1.0 Ohms on a single coil without the burnt taste (around 18W). However, when I dropped down to .9 Ohms, the juice started tasting burnt again. The problem was that with a single coil, I was just pumping too much heat into too small an area to keep up with the air flow and wicking. So, I made two 1.8Ohm coils and ran them in parallel to make 0.9 Ohms (around 20W), and it's working fine. Next coil build, I'll try dropping that to 0.8 Ohms to see if it's still acceptable or not.

 

[Smann245]

Not sure of other models, but my Ehpro Kayfun 3.1 has horizontal holes in the pos and neg blocks to allow for easy dual coil setup. Mounting under screw heads works best for single coil, but the side holes are a great feature for alternate builds. I agree that the Kayfun set up with duals would be a good way to handle more power.

 

[tj99959]

Well my question is why do you want to run your KF at +15 watts when it will give you a damn nice vape at 9?

 

[PapaSloth]

Not sure of other models, but my Ehpro Kayfun 3.1 has horizontal holes in the pos and neg blocks to allow for easy dual coil setup. Mounting under screw heads works best for single coil, but the side holes are a great feature for alternate builds. I agree that the Kayfun set up with duals would be a good way to handle more power.

Unfortunately, my KFL+V2 clone doesn't have those post holes, so I have to jam both wires under each screw head. It does make things a little tricky, but if you do a full wrap around the screw before tightening it down, it's manageable. Still, a pretty compact (tiny) build deck for dual coils.

I also have an Ehpro Big Buddha, which is an absolute dream to build on. It's basically a 30mm KFL with dual air flow, and a dual coil build deck (and an all-glass tank). Very, very pleased with that purchase. I'm running that at 0.66 Ohms with no modifications other than removing the airflow adjustment screws, and it handles that without breaking a sweat.

 

[PapaSloth]

Well my question is why do you want to run your KF at +15 watts when it will give you a damn nice vape at 9?

Personally, I just find the vape a little too thin. I like the full, rich flavor that a denser vape provides. I don't really care about the cloud part at all, but I really appreciate the taste.

 

[Smann245]

In single coil mode with 28g, 1.8 ohms, 11w (MVP max) it takes a few seconds to heat up and produce warm flavor. Thinner wire isn't as nice. More watts will get the flavor and heat going quicker. It can be built to satisfy at 9w, but it can be built to be more satisfying at higher watts. Why do you use a Kayfun instead of something else? Personal preference. Thanks for the contribution. :/

 

[Poisontail]

So I have a question:
I built a 1.2 ohm single coil for my kayfun lite, and after 15watts it tastes burnt.

I just watched a rip trippers video and he built a 1.2ohm single coil build on the tugboat v2 RDA, and is vaping it at 40watts and he says its perfect.

So my question is.....if they are both a single 1.2ohm build. How can he go up to 40watts and it taste great, but I can't go past 15w? Is it because the airflow in the RDA is by far superior than in the bottom of my kayfun lite?

I just get confused on how some of my carto tanks....iclear 30, nautilus, aerotank, etc...can only go up to 12 watts or so then taste burnt, but others do it at 20-25 watts and say it tastes great. Same thing with my RDAs....dripping same ohm dual cole at 35-40w, but others with same ohm dual coil can go double that.

Rip says a lot of things to get free stuff

 

[edyle]

Another factor is wicking.

If you twist cotton tight enough, it will wick slower, like silica.

With the loose fluffy cotton, it wicks much faster and keeps up with higher power.

 

[Smann245]

Rip says a lot of things to get free stuff

HaHaHaHaHa!!!!! Perfect.

 

[wrice4]

Rip says a lot of things to get free stuff

Jealous that he has the ability to test a lot if setups? Seems like it with that response.

 

[VaPreis]

Wicking is the issue. I can vape my .8 ohm kayfun over 20-25 watts and not get burnt hits vaping 50/50's



I have a small army of KFL clones from various manufacturers and haven't modified the liquid channels in any of them yet, so some refinement to technique is probably what's needed.



For me, the "bunny ear" method using cotton has never failed.

EDIT: I should have also recommended using a coil ID of 2mm or greater.

 

[PapaSloth]

Wicking is the issue. I can vape my .8 ohm kayfun over 20-25 watts and not get burnt hits vaping 50/50's



I have a small army of KFL clones from various manufacturers and haven't modified the liquid channels in any of them yet, so some refinement to technique is probably what's needed.



For me, the "bunny ear" method using cotton has never failed.

EDIT: I should have also recommended using a coil ID of 2mm or greater.

You've been lucky then, because all clones are not created equal. For example, look at how craptacular the juice channels are on the Kayfun clone on the left:

No matter how you build it, that thing just will not wick properly until you take a tool bit to it.

Here's another one, take a look at the juice channels on the KFL on the right:

 

[Smann245]

Wow, even the screws and pos block look like crap.