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Single oval coil build for Vandy Vape Pyro

Discussion in 'Coil Builds' started by JimzDogz, Feb 27, 2018.

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  1. JimzDogz

    JimzDogz Super Member Verified Member ECF Veteran

    I've heard it said that the Pyro doesn't vape as well in single coil mode as dual coil. I tend to disagree, granted the Pyro in single coil will not have the surface area that a dual coil will and the air flow ramps don't match as well in single coil mode. But, you have a massive, wide open deck to work with. Why not take advantage of it to and build a single coil that will utilize the unique air flow design of the Pyro. Of course my first thought was a bigger coil to fill the void. I have been using 3.5 mm dia. coil for some time, so I decided to try a ss 26ga. 4mm coil to start. The 4mm coil looked tiny inside the Pyro. It did vape very well and I was very satisfied with my purchase (since I rarely use dual coil builds). It kept bugging me that I wasn't utilizing the full potential of the Pyro. I decided that if big was good bigger would be better. So, I dug up a 6mm drill bit and wound up a ss 26ga 6mm coil, it turned out to be a monster, but it fit. I'm installing this monster size coil and disaster happens, it slips from my hand I hear it bounce twice and ... I spend far too long searching for it, become frustrated and decide to take a break. While taking a relaxing vape break, after accepting the I wasn't going to find that *** coil, I contemplated what I had learned.
    1) the 6mm coil was huge and would put it much closer to the drip tip
    2) their wouid be a large amount of wick at the center of the coil that does nothing
    3) still not getting the air flow where I want it.
    My solution was a massive oval shaped coil. I set about measuring every small rectangular item that I could find lying around the house. What I had in mind was something like a popsicle stick, but was coming up empty. While digging through our kitchen junk drawer, my son came in and asked what I was looking for. I told him I needed something like a popsicle stick for a project. He goes I got a stick from a corn dog that I ate, you want that? Eureka, That corndog stick measured to be 7mm x 3mm, it is perfect. After making a ss 22 ga. 7mm x 3mm oval coil I had a bit of trouble removing the wooden stick. After getting it out and wicking this bad boy up, wow. Great flavor. I'm vaping a 4mm round coil and the oval coil both on the Pyro (I have 2) for comparison. Forget that, their is no comparison, the oval coil is out performing the round coil hands down.

    Ps. Found this on youtube (after I finished of course)
    He makes a Clapton oval coil, I just used ss 22ga. instead. Same principle. He installs the oval coil on a 2 post deck. In my application the oval is horizontal to the deck instead of vertical as his is.
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  2. score69

    score69 Ultra Member ECF Veteran

    Feb 28, 2015
    Athens, GA, USA
    Very interesting... What brand of corn dog stick did you use??? I'll have to pick some up, lol. :D

    Sorry, I'm in one of those moods today. This is a VERY interesting read. I'm a big fan of the Pyro, but so far only built mine with dual 2.5mm claptons.

    I'm planning on trying a single coil in it next time I build it, I actually prefer single coilers myself. I was going to try a single 3.5mm coil, maybe I'll give an oval coil a shot instead. Not going to hurt, right? :thumb:

    Would love to see a picture of your build if possible.
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  3. JimzDogz

    JimzDogz Super Member Verified Member ECF Veteran

    Ball Park Corndogs, is their any other. ha ha I've moved on from corndog sticks. I ordered a 8mm x 3mm x 200mm boring bar from Amazon. I'll be making a jig with it, I expect these to be my go to coil for single coil attys. and postless decks.

    I'll try to get some pics up in a bit, got to charge my camera. After using these coils a few days now, I amazed at how few spits I get. Thinking about it, the surface area is a little less than a dual coil. But it will hold about 3 times as much wicking material, making for super saturated hits every time. I can easily fill those monster wick ports on the Pyro. I'm also loving the flavor, that is where I think they shine.
    What kind of battery life do you get firing dual claptons? ha ha That;s a big problem for me since I prefer using single battery mods. 60 & 75 w. Though I do own a couple of DNA 200s. These oval coils are giving me close to dual coil performance, with less battery drain. I'm loving that too.
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  4. Ralph_K

    Ralph_K Senior Member

    Jan 1, 2018
    I made a coil using a screwdriver. I estimate close to 8mm its pretty close to top of the cap but no short
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  5. JimzDogz

    JimzDogz Super Member Verified Member ECF Veteran

    I recently bought a 2mm x 8mm x 200mm tool bar from Ebay HSS 2mm x 8mm x 200mm Rectangle Lathe Tool Bit Boring Bar Fly Cutter 700724178855 | eBay it makes a sweet coil for any postless deck atty . I have found that after wrapping a coil, if I torch heat it before removing it from the bar, it stress relieves the wire. By stress relieving the wire before installing the coil, it doesn't deform when the bar is removed. This coil is SS 316L 22 ga. with 8 wraps comes to 0.53 ohms. The same build using SS 31L 24 ga. wire will result in a .83 ohm coil. The same build using SS 31L 26 ga. wire will result in a 1.3 ohm coil. The picture makes the coil seem to be really close to the fill plugs but it isn't. This coil wicks like you wouldn't believe. Also spitting is almost completely eliminated. I know that I'm making a lot of claims about this coil, but it is all that. Try one then tell me I'm wrong.
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  6. JimzDogz

    JimzDogz Super Member Verified Member ECF Veteran

    Just for fun I put a 3mm x 6mm 24 ga. SS coil in a Haku Phanton. It was a bit fiddly getting it just right, because I wanted it to sit about 2 mm off the deck. The coil came out to be 0.55 ohms and I'm running it at 22.5 watts on a SunBox E8 squonker. I had to freehand the coil into place. I couldn't install the coil with the rods inside it. I wanted the air to hit the top, sides, and bottom of the coil, so I put it very low. It seems to be working, because I'm getting a warm vape with lots of flavor.

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