Since I'm using a ipv3, can someone suggest me the best build using either 26g or 30g kanthal for a magma and a mutation x v2. I read quite a bit but don't understand if I should be shooting for coils above or below 1ohm and what gauge to be using.
My thoughts about sub-ohm and latest VV/VW devices...
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What kind of battery do you have? You always want to stay above your max amp limit on a mech it's based on your battery , on a regulated device it's based on your chips amp limit and additionally you need to have a battery that hasthe same or higher limit as well. Then the closer you get to the amp limit, based on ohms law,the more aggressive you want your build to be the more amps you build for.
Dual 30g coils 8 wraps for 1 ohm total at 40w will be very good. Heat and cool fast. 356 mw of heat.. - Heat capacity of 22 (heat up and coil down time)
To get 26 close to the heat from the 30 you would need dual 8 wraps each .43 ohms at 70w. 360mw temp but a heat capacity of 64 ! It will take 3 times longer to heat and cool.
Me personally, I would definitely go 30g
I'd like to offer this. Advertisements for these devices often contain false claims. To understand a devices true capability you need to study device specifications and fully understand Ohms law and Watts law before you buy, recommend or criticize a VV, VW device capability to deliver a cloud equal too or greater than a low ohm build on a Mech Mod. One thing that is often misunderstood about VV and VW devices is their voltage and amperage limitations. Every DC to DC converter (VV or VW Chip) device has a Maximum Voltage limit and a Maximum Current limit for the convertor chip. For instance, I'm quite familiar with the Cloupor T5 and it's specifications. The operating resistance range of the Cloupor T5 is less than the Cloupor advertisement claims if you want to have the capability to adjust wattage all the way up to a TRUE 50 watts being delivered to your coils. Why? The T5 DC/DC converter chip has a maximum voltage output of 9.3 volts and a maximum current output of 10 amps. The ROM software of the device prevents exceeding these two maximums. But Cloupor also says the T5 is good from 0.2 ohms and up 3.6 ohms and it can operate at these resistances. This is only true in meaning it will work without giving a check atomizer error on the screen. What it cannot do is deliver a full 50 watts at .2 ohms or deliver a full 50 watts at 3.6 ohms without exceeding either the 10amp power limit or the 9.3v Voltage limit of the T5. With a coil of 0.2 ohms and at the 10 amp limit, voltage applied is 2 volts for a maximum of 20 watts. If the device tried to increase the voltage above 2 volts you'd exceed the 10 amp limit and the ROM software doesn't allow it . It cannot exceed the voltage without causing a failure of the DC/DC chip. At the other end of the scale a maximum of 9.3 volts driving a 3.6 ohm coil will deliver a maximum wattage of 24 watts. It should be capable of delivering a full advertized 50 watts if your coil resistance is above .5 ohms and below 1.73 ohms if you ignore any safety factor. Quite a bit narrower operating range than what they advertise isn't it?. The T6 and the T8 also have their limitations too and can be calculated from the specifications. Regardless of the advertizing claims, the T5, T6 and or the T8 cannot deliver its full advertised power at the upper and lower coil resistance either. I've seen similar false statements made on advertisements from other venders also. False advertising? Perhaps? In reality as long as you maintain your builds more towards the center of the resistance ranges it should be able to deliver the maximum advertized wattage output for the device. The display screen showing 50 watts on the LCD with a 0.2 ohm coil(s) or 50 watts on the LCD with 3.6 ohm coil(s) is a lie. In reality at these two extremes you are actually vaping at 20 watts or 24 watts regardless what is displayed on the LCD. In summary you can get bigger clouds and a hotter vape with a 0.6 ohm build on a Cloupor T5 set at 50 watts than you can get with a 0.2 ohm build at a 50 watt setting on the T5. In the T5 the maximum wattage is 20 watts even though it shows 50 watts on the LCD display with a 0.2 ohm coil. I did not touch upon efficiency ratings of a typical DC/DC convertor either. I tried to apply the KISS concept above and probably failed. (Grin)
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awesome post, a little difficult to read as a wall of text. not looking to criticize or flame just intended as friendly forum advice, pressing enter after each complete thought helps make a post like that much easier to read and comprehend, and that's worth understanding 
Thesis statement. Supporting sentences. Conclusion or transition statement.
It is a great post though.
It is a great post though.
Yeah trex, totally agree. This type of thing goes all the way back to the beginning. A single 18650 vamo could only realistically do 15w with a 2.4 ohm coil. (2.5 amp limit) Amp limitation is the most important thing to consider.
There are also minimums on devices 'chipset' spec sheets to consider, specifically voltage output minimums.
Whatever the minimum voltage output spec is for the chip also controls the minimum wattage output depending on the resistance of the coil being powered.
Some are capable of stepping down the voltage output to 3.6v minimum, some to 2.8v min, a few claim to step down to 1v min.
Sometimes this leads folks to believe they are vaping at considerably lower wattage's than what is actually taking place.
What is shown on the display compared to what is actually being sent to / powering the coil / head in some cases is very different.
Example:
Using a .5 coil on a device that can step down to 3.6v, then one that can step down to 2.8v
Display set to 8w
minimum 3.6v / .5 = 25.92w & 7.2a
minimum 2.8v / .5 = 15.68w & 5.6a
Actual 7.68w ~ 17.92w above the 8w shown on the display.
8w at their respective voltage minimums / ohms at which it occurs:
3.6v / 1.62 ohm = 8w & 2.22a
2.8v / .98 ohm = 8w & 2.85a
None of the above examples factor in any voltage drop for APV & delivery device, just raw easy to calculate / use as an example numbers.
A few ' chips' are not capable of stepping down voltage at all / provide less than battery voltage to the coil, in other words have no step down / buck voltage capability.
Example:
Using a fully charged battery & theoretical .5v voltage drop ( apv & delivery device), yours could be more or less.
4.2v - .5v = 3.7v
Display set to 8w
3.7v / .5 = 27.38w & 7.4a
19.38w above the 8w shown on the display, of course depending on actual battery voltage & v drop.
Some devices will flash the display or use a signal method on the display to inform the user the chip has no control over power output, some folks call this unregulated / straight battery voltage mode.
None of this is dangerous or a concern unless you use low quality low CDR batteries thinking that at the power ranges (w) you vape good batteries aren't necessary.
Or you wonder why something tastes burnt on a low power setting.
If you think you're vaping at 8w because the display says so but are actually vaping at 15w ~ 25w it certainly can make a difference.
Whatever the minimum voltage output spec is for the chip also controls the minimum wattage output depending on the resistance of the coil being powered.
Some are capable of stepping down the voltage output to 3.6v minimum, some to 2.8v min, a few claim to step down to 1v min.
Sometimes this leads folks to believe they are vaping at considerably lower wattage's than what is actually taking place.
What is shown on the display compared to what is actually being sent to / powering the coil / head in some cases is very different.
Example:
Using a .5 coil on a device that can step down to 3.6v, then one that can step down to 2.8v
Display set to 8w
minimum 3.6v / .5 = 25.92w & 7.2a
minimum 2.8v / .5 = 15.68w & 5.6a
Actual 7.68w ~ 17.92w above the 8w shown on the display.
8w at their respective voltage minimums / ohms at which it occurs:
3.6v / 1.62 ohm = 8w & 2.22a
2.8v / .98 ohm = 8w & 2.85a
None of the above examples factor in any voltage drop for APV & delivery device, just raw easy to calculate / use as an example numbers.
A few ' chips' are not capable of stepping down voltage at all / provide less than battery voltage to the coil, in other words have no step down / buck voltage capability.
Example:
Using a fully charged battery & theoretical .5v voltage drop ( apv & delivery device), yours could be more or less.
4.2v - .5v = 3.7v
Display set to 8w
3.7v / .5 = 27.38w & 7.4a
19.38w above the 8w shown on the display, of course depending on actual battery voltage & v drop.
Some devices will flash the display or use a signal method on the display to inform the user the chip has no control over power output, some folks call this unregulated / straight battery voltage mode.
None of this is dangerous or a concern unless you use low quality low CDR batteries thinking that at the power ranges (w) you vape good batteries aren't necessary.
Or you wonder why something tastes burnt on a low power setting.
If you think you're vaping at 8w because the display says so but are actually vaping at 15w ~ 25w it certainly can make a difference.
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It took me a week of passing this post by due to the intimidation factor of electronic, and without punctuation... but the responses were good and I plowed through what was a pretty easy read for me.
I guess with all the boxes coming on the market now, they have little choice but to hit you with questionable marketing...
In Clouper's case they provided both voltage and watts info (T5; 50w, 9.3v). He did a pretty good job on the dna30 type so I figured they were true when I ordered the T8 a good while back.
Although I'm sure I will get more or less what I want out of it, it won't give me that high voltage/wattage option at its extremes (without passing the max current amp limit of the chip ?) which i why I got it to add to the boxes I already have.
I wonder if at some point we (non-electricians) can able to look at a box mod's specs and know exactly what the hell we are getting.
I guess with all the boxes coming on the market now, they have little choice but to hit you with questionable marketing...
In Clouper's case they provided both voltage and watts info (T5; 50w, 9.3v). He did a pretty good job on the dna30 type so I figured they were true when I ordered the T8 a good while back.
Although I'm sure I will get more or less what I want out of it, it won't give me that high voltage/wattage option at its extremes (without passing the max current amp limit of the chip ?) which i why I got it to add to the boxes I already have.
I wonder if at some point we (non-electricians) can able to look at a box mod's specs and know exactly what the hell we are getting.
Reminds me of the old el-cheapo amplifier "power" wars. Oooh? 1500 watts? Neato!
Then you see the real numbers, and it's 28 watts RMS, with 10% THD and a SNR of 20 dB, lol.
The only reason I know that is from following the t5 thread bc I got some cloupor hana clones to put dna40 chips inside. ..
I built my own bottom feeders instead, I can't stand the wasted size of a Hanna box without having a bottle of juice on board. .
I built my own bottom feeders instead, I can't stand the wasted size of a Hanna box without having a bottle of juice on board. .
This topic has floated to the surface again in another thread.
A lot of good information.
TTT
A lot of good information.
TTT
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Very nice post.
I dont try to reason with the wool cap wearing horn rimmed hipsters that hand around the vape shop I visit in houston. I went in one day puffing away on my kayfun attached to an mvp... I was blowing decent clouds and the flavor was really amazing. I was using a 1.1 ohm vertical coil completely wrapped with cotton ( Thanks rip Trippers ).
Sometimes a good vape is very subjective. What the user enjoys. I am loving my Atlantis, but my step mom hates it. She prefers an ego, and can use the same cef filter for a month and not realize that the coil is burnt and needs to be replaced...
I dont try to reason with the wool cap wearing horn rimmed hipsters that hand around the vape shop I visit in houston. I went in one day puffing away on my kayfun attached to an mvp... I was blowing decent clouds and the flavor was really amazing. I was using a 1.1 ohm vertical coil completely wrapped with cotton ( Thanks rip Trippers ).
Sometimes a good vape is very subjective. What the user enjoys. I am loving my Atlantis, but my step mom hates it. She prefers an ego, and can use the same cef filter for a month and not realize that the coil is burnt and needs to be replaced...
To The Top.
The post was dated and fell off of the map but the same question has come up again a couple times and this thread is GOOD!
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