long or shory coils

[longhaireddwb]

Been building a few diff dual coils lately ( dual wrap and two coils) and had a question for the group.
If a coil has more surface area will it give more flavor and cloud or is it the other way around?
I've been mainly building 7 to 8 wrap coils keeping the ohms at sub level. It seems to me it takes longer for the coils to heat up. Or am i just imagining it?

What is your opinion on mo4e or less wraps in a coil?

 

[Lova]

What diameter is your kanthal, because larger diameter coil heats up and cools down slower than a thinner kanthal, personally I use 4x 0.20mm kanthal twisted together and do a 3 wrap on a 1.6mm needle, 0.15ohms and 28A. Subohming is safer when done in 0.9-0.4 range, you can get nice clouds with a 0.6ohm build also

 

[longhaireddwb]

Im using 28awg canthol. Dual wires on one coil. 7 to 8 turns on a 2.0mm screwdriver. And two coils this way is getting me around .38ohms.
ive also noticed that no matter how perfect i make my coils one heats up faster than the other. I aldo try to put my coils leval and in the middle of the side so i do end up wiyh one leg longer than the other.

 

[longhaireddwb]

Anyone else have any opinions on flavor and cloud having anything to do with coil surface area? As in bigger diamiter or longer coils?
or is the general thought to go with micro sized coils for more of all?

 

[longhaireddwb]

Or is it just the ohms rating that makes up what is needed for cloud and flavor and having a coil of 4 turns, single strand compared to 8 turns dual strands makes no diff on the outcome?

 

[CloudKick]

Anyone else have any opinions on flavor and cloud having anything to do with coil surface area? As in bigger diamiter or longer coils?
or is the general thought to go with micro sized coils for more of all?

Running parallel wiring will increase your surface area and decrease heat dissipation. In my experience it gives better flavor with less heat

 

[CloudKick]

Better to just tell us what you're trying to accomplish

 

[lucky_x16]

I am running Macro Coils on my Dark Horse. 24 gauge Kanthal, single coil @ 0.4 ohms and that seems to be the sweet spot for me. To me it is a matter of how much surface area of your wick you have in contact with the coil for a drip type set up. Even running one coil using cotton, my go to wick, I cover the floor of the RDA, ensuring I get some under the coil with out blocking the coil from the air intake.

Now my RM2 on my REO Grand, I run at 1ohm, with 29 gauge wire I picked up off of Amazon. On this I run my cotton slightly different as my coil sits above the feeder hole and that is the only place I do not put cotton.

That said, I find that the tighter I pack cotton in my coil, the less flavor and cloud I get.
The coils placement in relation to the height of the intake is also a factor for throat hit. If the coil is as high or higher than the intake, the throat his seems quite higher.

Just my 2 cents and remember I am no expert.

 

[slyphex]

A longer coil (more wraps) will provide more surface area and thus more vapor. But if you make your coils too narrow the wicks won't be able to keep up since you will vape all the liquid off very quickly.

The main reason to switch to a thicker (higher gauge) wire is it allows you to use more wraps (more surface area) while keeping your resistance low.

Parallel coils are great because they increase the surface area while allowing you to use a thin wire which will reduce the time it takes for the coil to heat up.

Personal preference here, but I like spaced coils (the wraps aren't touching). I feel it provides more surface area and doesn't superheat the liquid like a micro coil does.

 

[longhaireddwb]

Great info here. This is starting to make more sence to me now. I hadnt thought about tighter wicking or posisioning of the coil to air intake.
There is so much little things that make a diff.

Last night i built two zipper coils using 28 awg kanthol on a 3/32 drill bit. Mounted them in my mutation v2 and found it to be 0.12 ohms. Too low. I went ahead and wicked it up and gave it a try. The cloud was huge, flavor was grand but tgr button on my Panzer was warming up. I knew it was not cool to run at this level of resistance so i pulled one of the coils out. Closed the air flow on the side with out a coil. Now im at 0.27 ohms and in the safe zone. Still getting huge clouds and good flavor. More coil serface area with the 3 wires i think made for better vaping.
Now to start over and try to build higher ohmed coils in the zipper fasion so i can run two coils.

 

[lucky_x16]

Reading here on the forums and following RiP Trippers On YouTube, had always kept me headed down the right path.
If you check his video section he does a lot of builds for several different RDA's and RBA's.

 

[longhaireddwb]

Reading here on the forums and following RiP Trippers On YouTube, had always kept me headed down the right path.
If you check his video section he does a lot of builds for several different RDA's and RBA's.

I've been checking out a lot of Rip Trippers vids. Good info.

 

[lucky_x16]

I have been watching his videos for quite a while, and while it seems he looks for the good in everything, when he finds crap, he calls it as it is.
I like the way he shows you how to avoid common things like leaking, and other negative stuff.

 

[MrPlink]

Kinda depends on what you are using to power your build too.

Regardless of resistance I tend to only build "massive" coils if I am using it on a regulated device. Being able to constantly dire above 4v helps with potential ramp up times.