UD Simba RTA

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petra_

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Dec 20, 2012
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Thessaloniki
My impressions from the new simba ud















Assembling:

Simba has many parts, I found it a bit more complicated than necessary. The AFC ring is detachable, must be pressed to lock and rotates in a rather mysterious way. Sometimes I cannot rotate it without a kerchief, sometimes I open accidentally both the liquid flow and the airflow. Some other times I detach accidentally the afc ring. While Griffin, Vixen and other tanks have the afc ring as part of the base, with embossed surface to help rotation, Simba has it as a separate part without any grips to help rotation. Yes, one can certainly not detach the atty from the mod, to adjust the airflow, but without a kerchief it seems way difficult. Anyway, UD separated the afc to put inside two compensation rings.




But when the liquid escapes the tank and reaches the airflow, there is a leakage anyway. Compensation or no compensation ring.

However, the control of the airflow works smoothly.

The chimney locks to the base with threads. The top cap also uses threads to lock to the chimney and secure the pyrex tank. The top cap is divided to two parts. The upper one is responsible for the top filling.














The chimney rotates also mysteriously to open the liquid flow. It needs practice.

The mouthpiece isn’t as wide as expected for a lung inhale tank. Half of it is open at the bottom part. Rotating it the airflow can be minimized further. Not a bad thing if you don’t intend to put one cubic meter of vape and air inside your lungs.





COIL HEADS

Simba’s great advantage is the variety of well performing coil heads and the non cotton ceramic SS316L coil 0.5Ohm

This head (for endurance and taste according to UD) is closed at the top and is fed with liquid by small side holes. It works perfect, especially at TC.

The dual coil kanthal (Ceramic Cotton Coil) is open at the top and worths a try to rebuild it. It’s metal jacket can easily be removed, sometimes involuntarily (remains inside the chimney, but can be easily removed)

And of course the RBA dual coil head with only 2 screws for the wires. Also includes an adaptor for single coil. Well, with this head I had an issue, being unable to wire with a dual Clapton coil. The screws are at the top. With two thick Clapton coils in each hole, the screws wouldn’t screw till the end. As a result, the chimney couldn’t lock at its place. I pushed and succeeded but the screws touched the chimney and voila short circuit. 0.07ohm. The tank is tall. The chimney could be a bit taller! Anyway, with a single Clapton I got a right read at almost 0.5ohm. But to test the dual coil I made a rather sloppy 0.4 kanthal 0.35ohm coil. The result was better than the looks of the coil. Taste, clouds, throat hit, many watts.


Generally speaking, Simba performs very good with any coil I tested, single or double, RBA or ready to use.

I expect leakage from a lung inhale tank. Simba’s was a bit more than I expected. From the airflow and the bottom of the tank. I changed orings, locked its parts more tightly, but the leakage remained. Not a lot, not something to ignore. Add the difficulty to close and reopen air and liquid any time you fill… not an ideal situation. And this happened with all the coils of the package. This is only a personal observation, hope it works better to other vapers.

Well.. well.. simba’s coil heads are very good, wiring without Clapton easy, the deck is big. AFC and LFC allow taste, clouds and many watts for the lung inhalers. The mouthpiece can be replaced is one needs for vape. Not for MTL inhale, even with the airholes closed.

My simba is a sample from heavengifts.com

 

cooladdict

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Apr 28, 2012
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My impressions from the new simba ud















Assembling:

Simba has many parts, I found it a bit more complicated than necessary. The AFC ring is detachable, must be pressed to lock and rotates in a rather mysterious way. Sometimes I cannot rotate it without a kerchief, sometimes I open accidentally both the liquid flow and the airflow. Some other times I detach accidentally the afc ring. While Griffin, Vixen and other tanks have the afc ring as part of the base, with embossed surface to help rotation, Simba has it as a separate part without any grips to help rotation. Yes, one can certainly not detach the atty from the mod, to adjust the airflow, but without a kerchief it seems way difficult. Anyway, UD separated the afc to put inside two compensation rings.




But when the liquid escapes the tank and reaches the airflow, there is a leakage anyway. Compensation or no compensation ring.

However, the control of the airflow works smoothly.

The chimney locks to the base with threads. The top cap also uses threads to lock to the chimney and secure the pyrex tank. The top cap is divided to two parts. The upper one is responsible for the top filling.














The chimney rotates also mysteriously to open the liquid flow. It needs practice.

The mouthpiece isn’t as wide as expected for a lung inhale tank. Half of it is open at the bottom part. Rotating it the airflow can be minimized further. Not a bad thing if you don’t intend to put one cubic meter of vape and air inside your lungs.





COIL HEADS

Simba’s great advantage is the variety of well performing coil heads and the non cotton ceramic SS316L coil 0.5Ohm

This head (for endurance and taste according to UD) is closed at the top and is fed with liquid by small side holes. It works perfect, especially at TC.

The dual coil kanthal (Ceramic Cotton Coil) is open at the top and worths a try to rebuild it. It’s metal jacket can easily be removed, sometimes involuntarily (remains inside the chimney, but can be easily removed)

And of course the RBA dual coil head with only 2 screws for the wires. Also includes an adaptor for single coil. Well, with this head I had an issue, being unable to wire with a dual Clapton coil. The screws are at the top. With two thick Clapton coils in each hole, the screws wouldn’t screw till the end. As a result, the chimney couldn’t lock at its place. I pushed and succeeded but the screws touched the chimney and voila short circuit. 0.07ohm. The tank is tall. The chimney could be a bit taller! Anyway, with a single Clapton I got a right read at almost 0.5ohm. But to test the dual coil I made a rather sloppy 0.4 kanthal 0.35ohm coil. The result was better than the looks of the coil. Taste, clouds, throat hit, many watts.


Generally speaking, Simba performs very good with any coil I tested, single or double, RBA or ready to use.

I expect leakage from a lung inhale tank. Simba’s was a bit more than I expected. From the airflow and the bottom of the tank. I changed orings, locked its parts more tightly, but the leakage remained. Not a lot, not something to ignore. Add the difficulty to close and reopen air and liquid any time you fill… not an ideal situation. And this happened with all the coils of the package. This is only a personal observation, hope it works better to other vapers.

Well.. well.. simba’s coil heads are very good, wiring without Clapton easy, the deck is big. AFC and LFC allow taste, clouds and many watts for the lung inhalers. The mouthpiece can be replaced is one needs for vape. Not for MTL inhale, even with the airholes closed.

My simba is a sample from heavengifts.com



Very nice review, @Petra! I have zero leakage from my Simba, but I have an extremely difficult time changing coils. I used the ceramic head until it started to lose flavor (faster than the Vaporesso cCell) and when I tried to switch to the dual kanthal/ceramic head it took me 2 days to get the bottom of the tank apart to change the coil. I finally got it and I LOVED the dual kanthal/ceramic head. Once that head was spent (3-4 weeks of continuous use) I again had a little trouble getting the coil removed. I also lost the metal housing inside the chimney. I tried to clean and reuse the ceramic coil but it doesn't work now. I have been searching for replacement coils (either one. Both have amazing flavor and vapor!) but cannot find any right now. I hope they are on the market soon. I love how much juice this tank holds and hopefully I will get better at changing coils in the future! :)
 

USMCotaku

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Apr 25, 2014
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Very nice review, @Petra! I have zero leakage from my Simba, but I have an extremely difficult time changing coils. I used the ceramic head until it started to lose flavor (faster than the Vaporesso cCell) and when I tried to switch to the dual kanthal/ceramic head it took me 2 days to get the bottom of the tank apart to change the coil. I finally got it and I LOVED the dual kanthal/ceramic head. Once that head was spent (3-4 weeks of continuous use) I again had a little trouble getting the coil removed. I also lost the metal housing inside the chimney. I tried to clean and reuse the ceramic coil but it doesn't work now. I have been searching for replacement coils (either one. Both have amazing flavor and vapor!) but cannot find any right now. I hope they are on the market soon. I love how much juice this tank holds and hopefully I will get better at changing coils in the future! :)
till then...pull out that rba and start crackin on makin coils :p
 
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cooladdict

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Flywheel Shyster

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I've been using Fogger v5 with Coolfire 4 and UD Goblin with IPVD2 for about 6 months now and have a tab open from my vapor store for sigelei 90W plus [really want 26650 bat because I tend toward lower wattage for longer battery use] and am going to get the Simba rta with it. Fingers crossed that it is remotely close to my lovely lovely Goblin V2.

While this may not be the place, since I'll come back to say how Simba compares to complain, I would say that I have achieved amazing flavor and clouds from Goblin v2 by using UD clapton wire 26/32, and using exceptionally small diameter, about 1.75mm give or take, which has allowed me to get amazing performance. From 20w / around 2 volts I was getting clouds and flavor that I had gotten off 28g Kanthal at 2.5mm at 55-65w

The lighter one is with the cotton the better, as least in my case. Never a dry a hit.
 
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cooladdict

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I've been using Fogger v5 with Coolfire 4 and UD Goblin with IPVD2 for about 6 months now and have a tab open from my vapor store for sigelei 90W plus [really want 26650 bat because I tend toward lower wattage for longer battery use] and am going to get the Simba rta with it. Fingers crossed that it is remotely close to my lovely lovely Goblin V2.

While this may not be the place, since I'll come back to say how Simba compares to complain, I would say that I have achieved amazing flavor and clouds from Goblin v2 by using UD clapton wire 26/32, and using exceptionally small diameter, about 1.75mm give or take, which has allowed me to get amazing performance. From 20w / around 2 volts I was getting clouds and flavor that I had gotten off 28g Kanthal at 2.5mm at 55-65w

The lighter one is with the cotton the better, as least in my case. Never a dry a hit.
That's good to know! I figured the more cotton the longer before it burns through, lol. I probably vape to hot. :D
 

Coolloser

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Oct 16, 2015
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Very nice review, @Petra! I have zero leakage from my Simba, but I have an extremely difficult time changing coils. I used the ceramic head until it started to lose flavor (faster than the Vaporesso cCell) and when I tried to switch to the dual kanthal/ceramic head it took me 2 days to get the bottom of the tank apart to change the coil. I finally got it and I LOVED the dual kanthal/ceramic head. Once that head was spent (3-4 weeks of continuous use) I again had a little trouble getting the coil removed. I also lost the metal housing inside the chimney. I tried to clean and reuse the ceramic coil but it doesn't work now. I have been searching for replacement coils (either one. Both have amazing flavor and vapor!) but cannot find any right now. I hope they are on the market soon. I love how much juice this tank holds and hopefully I will get better at changing coils in the future! :)
Rewick the cotton ceramic coil Cool! It comes apart really easily, I consider it my second RBA!
Here's my review, didn't realize this thread existed until @Jim_ MDP pulled me in.
UD Simba Tank!

I accidentally forgot to open my liquid control after a refill the other day and got a nasty dry hit but at least it shows that it does seal the liquid off haha.
 
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cooladdict

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Rewick the cotton ceramic coil Cool! It comes apart really easily, I consider it my second RBA!
Here's my review, didn't realize this thread existed until @Jim_ MDP pulled me in.
UD Simba Tank!

I accidentally forgot to open my liquid control after a refill the other day and got a nasty dry hit but at least it shows that it does seal the liquid off haha.
Thanks, Cool! I LOVE the cotton ceramic coil. I was shocked at just how much I love it, lol! I am headed over to your thread right now to read your review! :)
 
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Flywheel Shyster

Full Member
Jul 10, 2015
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Goddang I am in love with the Simba. Ceramic coil was great for a week but I just did a single coil build [usually do dual coil so will have to try that after a while to compare with goblin v2/fogger v5/limitless which are my other rtas] and it is spectacular!

They should have promoted its amazing AFC ring and adjustable drip tip as a good between for those who aren't necessarily cloud chasers but want a sub-ohm/something stronger than traditional MTL but with the kick of a sub-ohm tank. No leaks except once when I made an error and I half expected it so didn't lose much juice at all. Extremely well built, threads easily and efficiently, and UD continues to be my flavor chaser dream company.
 
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