New wire question

[rew]

I've been looking everywhere online for a comparison of mass and airflow etc. and not found much so I'm glad to see this discussion. I've been trying to work out in my head what I want to get a tight airflow that doesn't get too hot.

I see what Zou is saying as a higher resistance would give slightly more current and that is the spicy part electricity. But yes it is a relationship and the mod will balance it all out.

My usual build around 1 ohm I used at 14 Watts always. Now I have a SS coil at 0.4 ohms and it seems best at 16W. So I'm thinking the lower resistance needs a bit more power to get hot enough to make the same vape.

I also found that the vape got worse as I added more wraps. 9 wraps was shit, presumably because all the extra metal took a long time to get hot enough? A short sharp blast is sufficient for my tight air concentrated toot.

I like seeing these kind of discussions as I'm often thinking about how I can improve my vaping experience. Don't fight guys, it's good to air ideas

You could also consider using Ni80 wire. Comes out a bit lower than kanthal but seems to ramp up quicker. I tend to use 27g.

 

[Deadanddripping]

You could also consider using Ni80 wire. Comes out a bit lower than kanthal but seems to ramp up quicker. I tend to use 27g.

I have got some mate, I got a few bits and bobs with my Christmas money!

 

[zouzounaki]

I've been looking everywhere online for a comparison of mass and airflow etc. and not found much so I'm glad to see this discussion. I've been trying to work out in my head what I want to get a tight airflow that doesn't get too hot.

I see what Zou is saying as a higher resistance would give slightly more current and that is the spicy part electricity. But yes it is a relationship and the mod will balance it all out.

My usual build around 1 ohm I used at 14 Watts always. Now I have a SS coil at 0.4 ohms and it seems best at 16W. So I'm thinking the lower resistance needs a bit more power to get hot enough to make the same vape.

I also found that the vape got worse as I added more wraps. 9 wraps was shit, presumably because all the extra metal took a long time to get hot enough? A short sharp blast is sufficient for my tight air concentrated toot.

I like seeing these kind of discussions as I'm often thinking about how I can improve my vaping experience. Don't fight guys, it's good to air ideas

if your vape is too hot, make the same coil with thicker wire. the mod doesn’t “balance this out”, what @Crispycritters is referring to is the effect that the circuit in the mod is effectively split in two. so ohm’s law doesn’t apply in the way it does in a mech as far as the relationship between the battery and the coil. but the laws of science still apply to both circuits, and in our case the coil side one being the one of interest.

changing the resistance without changing the power (or more accurately, voltage) will change the amount of heat dissipated, no?

i’m sure this is how it works but i might be wrong.

 

[zouzounaki]

So to the question, do I use less wraps and just not bother about the resistance? Or more wraps to keep the same resistance? Do you need more airflow to get rid of the heat of a bigger coil? Or higher power? I'm more confused than I thought I'd be, figured I'd just throw it in my normal setup but it's shite.

also, the bigger coil will only produce more heat if you turn up the power. if you don’t then there is less power per mm2 of wire and you will actually create less heat.

which i suppose is what i was saying above, just reversed.

coil diameter is a factor as well. i think there are a lot of factors that contradict this idea of more wire = more/better vapour, especially for us low power puffers using round wire.

 

[Deadanddripping]

also, the bigger coil will only produce more heat if you turn up the power. if you don’t then there is less power per mm2 of wire and you will actually create less heat.

which i suppose is what i was saying above, just reversed.

coil diameter is a factor as well. i think there are a lot of factors that contradict this idea of more wire = more/better vapour, especially for us low power puffers using round wire.

Yeah more wraps, more resistance, lower current. So it's gonna take a long time to heat up. I don't mess with the coil diameter, there are enough variables as it is and I don't want to affect the wicking. I've only ever done 2.5mm.

 

[Deadanddripping]

I think the biggest surprise of using rta's has been the difference from stock coils settings. I always vaped 1.2 ohms around 10-12W with a fairly tight airflow. So that's what I aimed for when building. Then I got 0.8 nautilus coils and found I needed more airflow with the more power needed, more heat, more vapour to get them working well.

So building rta's I tried to go low and tight but I didn't get the flavour I expected. Now I'm vaping 0.4 ohms and it is tasting great. I'm not bothered about the numbers as long as the vape is good but it's not set up how I envisioned. Takes a lot of trialling.

 

[Deadanddripping]

Ah I've just remembered I started building my own cos I thought the stock coils were a bit shit! So that would explain it

 

[zouzounaki]

always 2mm coils for me, and i used to use 32g wire with four or five wraps. these days i use 28/29g with 9 wraps. i don’t think there is a difference in the amount of vapour. certainly not that i’ve noticed. and maybe i have the power up a bit since switching gauge.

i have a theory that narrower coils with less cotton are much more efficient than wide ones with a load of cotton stuffed in it. it has to be easier for the liquid to flow.

 

[vapervince]

I thought along the same lines as you but I came to the conclusion that in a 3 second drag there wont be much flowing so I went for a coil with the maximum number of nooks and crannies to hold the juice that has flowed between drags and a loosish wick.

 

[zouzounaki]

see i usually take big long puffs. sometimes i hit the ten second safety stop thing.