almost no vapor

[LazyWench]

I'm hoping this the right forum... I tried wording my search every way I could think of, but no relevant results.

In a nutshell, my current standard setup is a nautilus mini with a 1.6 ohm coil, using an iStick 20. Recently, I got an iStick 40 tc and a triton. I figured the triton could be dual-use--either as an extra-large (for me) standard tank, or for a subohm setup. Since I prefer juices with 65+% vg anyhow, it seemed a good way to go.

But I've run into a snag... with the 1.8 ohm coil at about 7 to 8 watts I get the kind of vapor production you'd expect with a high vg juice. And I have been practicing lung hits as well. But when I switch to a 0.4 ohm coil and crank up the wattage, I'm getting much less vapor. It's noticeably warmer... once I get up around 23 watts or so, it's hot enough to make me cough a bit. But the amount of vapor is more like what I'd get from a 2 second draw on the 1.8 coil.

I primed the subohm coil, I've tried damping down the bottom air intake to increase the draw, and I've tried adjusting the wattage up and down between 20 and 30 watts, but nothing really seems to make much difference. And yes, I did try replacing the coilwith a new one.

Any ideas for this subohm noob?

 

[Andygev35]

Just a couple of suggestions... First off, with sub-ohming, your e-liquid should have no more than 6mg nicotine, since the vapor should be much denser and more plentiful. High nicotine sub-ohming makes for very harsh hits. Second, using sub-ohm coils at high(er) wattages requires good airflow to cool the vapor. Cutting airflow increases temp and decreases vapor production.

 

[finnman1]

Less vapor in conjunction with heat means that the coil is getting too hot. The one any only reason for this based on the data that you have supplied, is that there is not enough juice wicking for that amount of Wattage. You need to increase the wicking potential to be able to run the coil that hot.

You generally want enough airflow comparable to 'more than you could normally suck though a cig.' It should be relatively loose air. The hot coil is not due to airflow, it's due to there is not enough moisture (wicking) on that coil to keep it at a low temp. The high temp burns the juice and makes it taste bad. There isn't enough juice on the coil to keep it cool.