BDM53ENT Posted October 31, 2014 Posted October 31, 2014 (edited) Building dual coils for Omega Clone. 28ga Kanthal, each side wrapped 6 times. Spacing is exact as I can see on both sides. Single coil reads .90 on either one and work fine. When placing both coils in I get a reading of .50 and no fire. Ive been building my Nautilus coils and they work fine, this is my first rda, dual coil. For the time being Im using a MVP. Ive read and watched videos and seem to be doing exactly what I think is right. Is the MVP not powerful enough to do this and I need to try to get a higher ohm reading on the coils? Am I missing something simple here? Edited October 31, 2014 by BDM53ENT
jasonculp Posted November 1, 2014 Posted November 1, 2014 I think the MVP will not fire below .9 (or at least mine wouldn't) When you build a dual coil setup you have to basically cut the resistance in half. If you have two 1ohm coils it will effectively be .5 ohms. I have read you need to run in the 1.2 - 1.5 ohm range to take full advantage of the what power you do have. I recommend http://www.steam-engine.org/ to get your calculations. With 28 gauge you might want to start out with a single coil just to start out.
Tam Posted November 1, 2014 Posted November 1, 2014 Going sub ohm at .50 you need a mechanical mod with a battery like a Sony vtc 4/5/6... Like Jason said, the MVP won't fire that low.
Compenstine Posted November 1, 2014 Posted November 1, 2014 What Tam said, You need to understand that when you run duals your resistance is cut in 1/2. Quad coils cut each coil by 1/4. The MPV will not work at a Ohm lower than .8 (so I have heard) so you want each coil at least at 1.6-1.8 ohms for it to fire.
BDM53ENT Posted November 1, 2014 Author Posted November 1, 2014 Im not good on the mathematics of it yet. I assume then I would have to go to smaller gauge wire to get the higher ohms running dual coils. Its running fine with one coil so I will wait on my other mod. Im learning, Thank you for your patience!
Compenstine Posted November 1, 2014 Posted November 1, 2014 We all have to learn at some point. Yes a smaller gauge will give you lower resistance and so will adding more wraps. The way I tell to think about it is think of your wire as a hose The bigger the hose the less resistance it it will have. The smaller the hose the more resistance it will have. That is just a basic view. There is more to it than that, but it will help you choose the right wire for the job, Adding wraps will add resistance. This is why a recommend getting at least 50ft of wire to start with. It will give you wire to play with as you learn. With 28ga you would want at least 10-12 wraps on each coil.
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