I have been inspired for the first time, to suddenly consider vertical coils
I had the idea for it because I had re-buit Atlantis coils with varying degrees of sucess, and after trying the TFV4 quad coil, I began to try and see how it came apart. That coil just wouldn't die, and I can't bring myself to destroy such a beautiful coil. Then, having seen pics of the single RBA, I figured that a vertical RBA was possible. I went to the B&M I frequent, Vape Horizon here in Edmonton, and asked to see the single RBA, and explained what I was planning to do. They are great guys there, and they donated one to the cause. Possibly, they just wanted the local ranting mad monk out of their shop but in any event, they have always been very good to me, and anybody I've ssent there. The very next day, I watched a review of the Landmark RTA by the Vaping Bogan, a hilarious guy who has forgotton more about vaping hardware than I'll likely ever know.
The Landmark has a rebuildable vertical coil. I used his review to wick Frankie. Thae actual mod on the single RBA was very simple. All I did to the deck, was fill the massive juice channels with silicone, to prevent flooding the airhole. Thats it. Fully reversible. I used a Dremel to cut the slots in the RBA shroud. Other than the waiting for the silicone to dry, the whole process took under 15 min. to fill the holes, and cut the slots. The pics don't show the vertical slots in the RBA shroud, I couldn't decide whether to use vertical juice intake slots like Smok used on the tricoil,or horizontal ones like on the quad coil, so I decided on 2 of each. The coil was also easy to build, I used a 4mm screwdriver stuck into the airhole to wind it. The only tricky part, is how close the coil comes to the chimney,
The airflow is the same or perhaps even a little more than the quadcoil. I actually have to close the aircontrol on the tank to about 80%. The flavor is maybe even a little better than the quad, I think because there is a lot more wick soaking up the juice surrounding the coil, and also because the coil is so close to the chimney. I also attribute its ability ro run max VG at 160 watts flawlessly to the massive amount of wick. So far, it seems that the sweet spot is about 110 watts. The vape gets very warm at about 120 watts. My mod only goes to 160, but I wouldn't be suprised if you couls push another 20 watts into the coil. An intersting observation I made is that the base of the tank which gets quite warm around 70-80 watts with the dual RBA, remains quite cool even at max watts with the vertical coil. I suspect this is because the coil is well above the base, and surrounded by juice to cool it..
Juice guzzleage is at LEAST on par with the quadcoil, maybe more. Anybody who has used the quad will agree that it gobbles up the juice at a rate one has to see to believe. The quadcoil I'm sure is making many juice vendors weep because unless you have no problem paying as much for your juice per week as you do for fuel in your car, DIY is the only economicaly feasible way to sate the beasts ceaseless thirst.
I definatly would recommend trying this experiment yourself. I personally find the airflow on the dual RBA, more than enough, but if you want or need more, for the price of one or two factory quad coils, you too can have a vertical RBA for the TFV4.
The TFV4 I think, has become more than just a tank, its a platform. Hopefully, Smok will come out with a factory vertical RBA. But if they don't, and you want one, its very easy, and was a lot of fun.
