This will be a long post so if you don’t read the whole thing I completely understand.
I feel like there is a formula for discovering flavor capabilities of all these new subohm RTA’s out there. I feel like deck and chamber size as well as chimney size and length heavily influence flavor production capabilities. Do these variables represent all there is to it? No, of course not. You also have to take into consideration coil build, distance of coil from air intake. Dimension of air intake. Power used. The list goes on and on. But it is my feeling that those type things considered equal, the flavor production of any tank can be estimated by the deck and chimney. Then again that presents a different problem. How does one rate flavor?
What brought me to this thought is how I’m lying in bed today…very uncharacteristic of me on a Saturday during the college football season. I’m sitting here with 5 tanks, and mentally noting their flavor production. For the purpose of meaningful discussion, let’s go ahead and give flavor some defining terms. Let’s rate it from 1-5, with 1 being the lowest, 5 being the greatest. Here are my impressions
5’s. I’m getting kick ass flavor from 2 tanks. The Goblin Mini is best, but right up on it’s heels the Joyetech Delta II.
4’s. The TFV4 with dual rba. and the Joyetech eGo One Mega
3 The Kanger Subtank Mini
No 1 or 2 flavor tanks in my lineup today. But the question occurred to me…why am I getting the difference between these tanks? The average person may get that glazed look in their eyes, view me with complete disbelief and think duh, they’re different tanks. Yeah I know, but what is it about them that makes flavor so different? After all, on the Delta and Subtank I have the exact same build - 22ga Ti, 5 wraps, 2.5mm. Can’t be the coil. I’m running them the same temperature. Vapor production is basically the same. There has to be something making flavor so different. I mean it’s the same set up but the Delta is killing the Subtank on flavor. Similarly, I have dual coil builds on the Goblin Mini and TFV4, but the Goblin stomps the Smok’s rearend. So what is it? You may recall me saying my vape with the TFV4 is the most enjoyable I’ve had. That is true, but it includes more than just flavor - also vapor volume and vapor temperature.
Before I go further, let me define the parts as I interpret them.
The deck - the part where you attach the coils you build.
The chamber - the part that encases the deck
The chimney - the part that connects the chamber to the top of the tank
So what are the differences or similarities in these tanks that produce greater flavor or lesser flavor? Let’s compare them with simple observation - no calipers or slide rules just yet.
The Delta. The RBA deck on this is similar to the Subtank Mini. It’s more like a rebuildable atty. However unlike the Subtank where a narrower chimney screws into it, when you put the Delta back together after inserting the RBA into the base, the entire RBA section actually slides inside the chimney. In other words the chimney has a larger diameter than the chamber. The Goblin, on the other hand, has a fairly small chamber compared to most subohm RTA decks. It’s chimney section diameter is about 1/3 the diameter of the chamber.
The TFV4 and eGo One Mega I put in second place, but that’s not to say they don’t have great flavor production. They really do…excellent in fact. But the other two do edge them out a bit. The difference between these tanks is night and day, although identical in setup to their #1 counterparts in that the eGo One Mega RBA is like a rebuilt coil that inserts into a chimney similar to the Delta while the TF-R2 RBA deck is like a regular atty that the chimney screws into like the Goblin Mini.
The Subtank Mini RBA is also like a rebuilt stock coil in the way it is designed (round instead of square though).
With all this in mind, I’m starting to wonder what role deck and chimney size has to play, as well as relative distance from the coil to the drip tip. I feel it is largely responsible.
So the Delta chimney is basically a tube the RBA slides into when it is put together. There is only a slight reduction in diameter from the bottom of the chimney (retains about 3/4 the size) to the top, and that reduction is for maybe 1/2 inch.
The Goblin Mini’s chimney is approx 1/3 the diameter of the chamber. It’s length is slightly less than half the height of the chamber. That reduction in diameter between the chamber and drip tip connector is not further reduced when using the stock glass drip tip.
The TFV4’s chimney isa little more than half the diameter of the chamber. It’s length is roughly the same as the chamber height.
The eGo One, like the delta, has the barrel type chimney that doesn’t get reduced except for the drip tip.
And lastly the Subtank mini chimney is a bit less than 1/3 the diameter of the chamber and approx the same length as the chamber height.
So how can this information be helpful to estimating flavor production with tanks you haven’t tried yet? Well that’s what I’m asking the community as I’m not totally sure. I do know beyond a doubt that something causes more or less flavor production. It’s not all coils, deck/chimney dims, distance to drip tip from coils, power, air flow etc but rather a combination of these things. My point is that I suspect the design from deck to drip tip have an enormous impact on flavor. I kinda feel like this has become something I assess about a tank on a subconscious level, which could explain why I jumped to purchase the Ohmega after @quitter1 posted a photo last night. I’m fully expecting this to have killer flavor due to the design, but we’ll find out.
Still here? Wow! Got any insight into all this or am I full of crap?. I would really like other’s take on this and if you think flavor production can be predicted with any measure of accuracy just by looking at a RTA. Oh and while I have never owned a Lemo, I almost bought a Lemo Drop when they first came out due to the shorter chimney. I suspected it might have better flavor production. I wonder if that’s right. I could look up video reviews I know, but I take those with a grain of salt, especially considering you can find ones that say the Atlantis gives great flavor.