Really?
Mine seemed to only flow about half as much air as the OCCs. I dremeled out the bottom of the post and combined with a vertical coil it's closer to even.
Subtank RBA vs OCC Air Flow
- Thread starter m00shie
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Really?
Mine seemed to only flow about half as much air as the OCCs. I dremeled out the bottom of the post and combined with a vertical coil it's closer to even.
Okay...I've re-wicked my RBA today on a 0.9 ohm 28 kanthal 2mm ID coil. This time, I used fiber freaks (rayon), loosen it and ensure the it has slight friction going into the coil. For the tails, I ensure the it's parallel (slightly puffed) to the coil running down to the juice hole and ensure that there's a small split at the end so as I don't block the juice hole.
Tested it and...oh wow....the air flow is similar to the OCC. vaping it at 20W with a 4-5 seconds hard lung hit....awsome! Cloud is dense but not plenty due to small wrap on the coil (6/5 wraps) but the flavor is definetly there.
Next challenge....getting it right with cotton....
Tested it and...oh wow....the air flow is similar to the OCC. vaping it at 20W with a 4-5 seconds hard lung hit....awsome! Cloud is dense but not plenty due to small wrap on the coil (6/5 wraps) but the flavor is definetly there.
Next challenge....getting it right with cotton....
maybe theres different revisions but yeah mines real close to the same airflow, if not the same, you have to try to see the difference
look up buttkickers on you tube he shows a very nice way to do it, it shows him taking it (a full size subtank rba with the first style small juice channels) to 50 or 60 watts with cotton and max VG juice
After 2 days of trial in wicking my RBA, I've finally got the wicking right to what I wanted....good air flow and ample amount of juice in the cotton for many variations of vape. Initially, I tried .... kickers' way...I could vape with the desired amount air flow (almost similar to OCC) but need to constantly vape hard as the cotton was less (at the tail end) and could not hold ample juice and needed the hard pull to suck juice from the tank. If I suck slowly or moderately, I get dry hits.
So I changed tactic, similar to .... kickers, I took out the top (dense) portion of the KGD cotton and started rolling the cotton and ensure the bottom (dense) portion is inside the roll. But instead of fluffing the tail ends...I leave the tail ends thick and maintain the "roll" shape as much as possible all the way to the juice hole. Then I prime the wick and make sure the roll shape is maintain as much as possible parallel to the "coil". On the tail end, I use tweezers or a pin to split the tails in the center to ensure the cotton does not block the juice hole. This will fan out the wick slightly at the end.
My theory for this build:
1) With the bottom (dense) part of the cotton inside the center of the roll, I maintain a reservoir of juice to cater for chain or hard vapes but as the dense portion is inside, I don't get flooding, leaks or popping.
2) As the juice hole in the subtank mini is somewhat small (without modifications), the dense portion (inside) of the cotton all the way to the tail helps to ensure ample liquid is available in the cotton while absorbing more from the tank so I can chain vape without dry hits
3) With the parallel (to the coil) shape of the cotton from end to end instead of fluffing or fanning the tail ends ensure smooth and ample air flow is generated. With this shape, my air flow is almost (if not the same) with the OCC build.
Just note that I'm not implying that other methods are incorrect or not right. Just that this build fits my personal preference of how I wanted the vape to feel like and thought I share it out
In fact, other methods may have the same outcome but I was just terrible at wicking it that way..haha
So I changed tactic, similar to .... kickers, I took out the top (dense) portion of the KGD cotton and started rolling the cotton and ensure the bottom (dense) portion is inside the roll. But instead of fluffing the tail ends...I leave the tail ends thick and maintain the "roll" shape as much as possible all the way to the juice hole. Then I prime the wick and make sure the roll shape is maintain as much as possible parallel to the "coil". On the tail end, I use tweezers or a pin to split the tails in the center to ensure the cotton does not block the juice hole. This will fan out the wick slightly at the end.
My theory for this build:
1) With the bottom (dense) part of the cotton inside the center of the roll, I maintain a reservoir of juice to cater for chain or hard vapes but as the dense portion is inside, I don't get flooding, leaks or popping.
2) As the juice hole in the subtank mini is somewhat small (without modifications), the dense portion (inside) of the cotton all the way to the tail helps to ensure ample liquid is available in the cotton while absorbing more from the tank so I can chain vape without dry hits
3) With the parallel (to the coil) shape of the cotton from end to end instead of fluffing or fanning the tail ends ensure smooth and ample air flow is generated. With this shape, my air flow is almost (if not the same) with the OCC build.
Just note that I'm not implying that other methods are incorrect or not right. Just that this build fits my personal preference of how I wanted the vape to feel like and thought I share it out
In fact, other methods may have the same outcome but I was just terrible at wicking it that way..haha
i have came to the very same conclusion over the last 2 or 3 days, im doing almost identical to what you're saying here m00shie
I also drilled out the RBA post and found only a slight increase in airflow, I think the bigger point of constriction comes from the top cap that goes into the rba chimney, if you look you can see it's a lot narrower, unfortunately I'm not sure there's much to be done about that one.
Actually, after various video tutorials and experiments...I found that the air flow is actually almost similar to the OCC. My issue with the airflow restriction was due to how I wicked the RBA.
I've managed to perfect the wicking using the method explained above which gives me a good amount of airflow.
Here's a sample of my wicking style (sorry for the bad lighting):
I've managed to perfect the wicking using the method explained above which gives me a good amount of airflow.
Here's a sample of my wicking style (sorry for the bad lighting):
Moved from Rebuildable Atomizer Systems to Clearomizers..
Since these are considered clearomizers, sub-tanks will be moved to this forum to keep all information in one place, and not scattered amongst RTA's like the Kayfun, Taifun, etc..
Since these are considered clearomizers, sub-tanks will be moved to this forum to keep all information in one place, and not scattered amongst RTA's like the Kayfun, Taifun, etc..
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