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Sub Ohm wicking coil advice

Discussion in 'Rebuildable Mods and Devices' started by rob77, Oct 12, 2017 at 7:39 PM.

  1. rob77

    rob77 Postman

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    Hi guys

    I've just recently got in to sub ohm RTA's (been vaping 3.5 years) but can't for the life of me get a coil to last more than a day without me having to dry burn it and rewick it. My set up is:

    OBS Engine Nano
    Modefined sirius 200w mod
    24awg 316l SS @ 0.3ohm
    Cotton bacon v2

    I have tried micro coils, staggered coils, clapton coils . On first vape after building it is fine for about a tank full. I then notice a harshness on my throat the next couple. After a few tanks it's impossible to vape as it just burns straight away. I then need to pull out the cotton which isn't discoloured and dry burn the coil which a lot of smoke comes off of and that removes the black residue. Rewick and I'm back to stage 1 which it will be okay for a tank and then hurt my throat again. Also tried tight wicking and loose wicking with the cotton.

    An example of the flavours I've tried are blue slush, peach, summer fruits etc. So mainly fruit type flavours all from different manufacturers. Perhaps these are too sweet?

    Another thing I thought it might be is the wire. I got it off of ebay and not from stealthvape which I know a lot of people recommend on here. Is there a difference with ss 316l? I did read a post off of here who had a bad throat with 316l which is similar to me.

    I only tend to vape at about 30w so not really all that high.

    Any advice would be most appreciated :)

    Cheers
     
  2. Fez-Vapes

    Fez-Vapes Postman

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    So when you pull the cotton out is it dry? Or completely saturated?

    Mind showing us some pics of your build with the cotton in?

    Wire might just be some cheap stuff.. I'm a big fan coilology coils, they do a multipack for about tenner which is great value
     
  3. Michael jackson

    Michael jackson Achiever

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    I sub ohm with them flavours and get weeks pushing 100w. Like already said need to see pic to check if you have enough cotton
     
  4. EmbraSewerRat

    EmbraSewerRat Achiever

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    It might be that you are not putting enough power thro' the coil.
    The juice might only be getting warm enough on the coils to not vaporise enough of the sweetener junk that some manufacturers put in, thus it leaves a residue on the coil which leads to smoke not vapour going into the mouth hole.

    Try upping the wattage to say 40-45W and see if that does anything.

    Or, you have a real issue somewhere in the chamber. Post pix of builds before and after so we can see what might be what.
     
  5. rob77

    rob77 Postman

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    Thanks guys

    Here's one I took earlier before I rewicked. This one had actually split in the middle.

    [​IMG]


    [​IMG]
     
  6. rob77

    rob77 Postman

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    This is it dry burned and rewicked and vaping perfectly fine for now.

    [​IMG]
     
    #6 rob77, Oct 12, 2017 at 10:57 PM
    Last edited: Oct 12, 2017 at 11:10 PM
  7. Fez-Vapes

    Fez-Vapes Postman

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    For a dry burned coil that still looks quite messy dude

    It seems that juice is collecting and gunking up in between the wraps of your coil

    Try putting a bit more cotton in the middle of the coil and thinning out the edges

    Also as mentioned maybe upping the wattage a bit may help
     
  8. rob77

    rob77 Postman

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    It wasn't straight after I built it. I had puffed on it quite a few times until I realised I needed a pic showing post build and how it looks when it's working. The problem is I vape in TC mode most of the time and my temperature is about 420F and 30w. I will try upping it tomorrow :)

    The cotton in the second pic is actually quite tight and I have thinned out the edges. The thing with this cotton bacon is it doesn't seem to expand like muji pads do.
     

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