ELeaf Lemo Dry hits

[jacobgh]

I bought a Lemo recently and on my first build I accidentally built it at 2.7 ohms with 28ga kanthal (no, I do not mean .27). It worked fine and I was vaping it without any problems at 40 watts on my Ipv3. After awhile I figured 2.7 was kinda high so I rebuilt it at 2.1, and now its about 1.9. Ever since I rebuilt it, I can't seem to go above 20 watts without getting dry hits. I re-wicked it tonight taking care to make sure that the tails of the cotton were just touching the deck and that the juice wells were clear of obstruction, but to no avail, I'm still getting dry hits above 20 watts and the bubble that come up are filled with vapor (don't know if that is a good clue or not). I'm still pretty new to the "kayfun style" atomizers, so I think I might be doing something wrong. I will try to post pics of the build I did tonight in a separate post, because it crashed my browser on my iPad last time I tried to add them to the thread.

 

[jacobgh]

 

[jacobgh]

This is the last of the pictures. I only built it on my mech mod, I was using it on an Ipv3.

 

[pzsoulman]

Hi there,

I don't have a Lemo yet, but watched many reviews about this tank. I'm in awe that you were able to push 40 w through the 2.7 coil, poor coil ;-) All I can say from the reviews I've seen is that its sweet spot is supposedly similar to the Kayfuns e.g. 1.2 - 1.8 ohm for your coil and about 12-15 watts power. Most of the reviews I've seen use 28 gauge kenthal.

Check out this review from Phil here https://www.youtube.com/watch?v=5YIOdQ-60N0

Cheers,
Pete

 

[jacobgh]

Hi there,

I don't have a Lemo yet, but watched many reviews about this tank. I'm in awe that you were able to push 40 w through the 2.7 coil, poor coil ;-) All I can say from the reviews I've seen is that its sweet spot is supposedly similar to the Kayfuns e.g. 1.2 - 1.8 ohm for your coil and about 12-15 watts power. Most of the reviews I've seen use 28 gauge kenthal.

Check out this review from Phil here https://www.youtube.com/watch?v=5YIOdQ-60N0

Cheers,
Pete

Thanks for the tips, I'm just trying to figure out why I was able to vape without problems at 40 watts at first, but now I can't.

 

[BeerGolfClouds]

Well, you weren't really vaping at 40 watts if you were using the iPV3. It has a max output of 7 volts, anything beyond that the numbers will still go up but the voltage/wattage will stay at the cap. So technically you were vaping that 2.7 ohm coil at around 18 watts.

 

[jacobgh]

Well, you weren't really vaping at 40 watts if you were using the iPV3. It has a max output of 7 volts, anything beyond that the numbers will still go up but the voltage/wattage will stay at the cap. So technically you were vaping that 2.7 ohm coil at around 18 watts.

I certainly notice a significant difference when I crank up the wattage, but I'm still kinda new to vaping so I may not understand. Why claim up to 150 watts if it can't really do more than around 20 on an IPV3? Just a marketing ploy?

 

[BeerGolfClouds]

I certainly notice a significant difference when I crank up the wattage, but I'm still kinda new to vaping so I may not understand. Why claim up to 150 watts if it can't really do more than around 20 on an IPV3? Just a marketing ploy?

It will go up to 150 watts, but only on a build where the resistance (ohms) is at .33 or lower. For example, I'm running a .47 ohm build right now, and at 7 volts I cap out at 107 watts per my iPV3 display. I'm not running it anywhere near that though. Google yourself an Ohm's Law calculator, you can use that before you build to see how much power you can push out of your desired resistance.

 

[sketchness]

I would try making a slightly smaller diameter coil. What are you wrapping that coil on? And perhaps I missed it but what are you wicking it with? That is a huge coil with a large hunk of wick. Don't worry about the numbers on the device. Start at the lowest wattage and start moving up until you get a vape you like. Doesn't really matter what the numbers on the IPV say as long as you like the vape. If you can't get a vape you like without burning start over.

I wick my fogger with Rayon and it works well with no dry hits. Just not enough for me. Planning on getting a Lemo next.

 

[jacobgh]

I would try making a slightly smaller diameter coil. What are you wrapping that coil on? And perhaps I missed it but what are you wicking it with? That is a huge coil with a large hunk of wick. Don't worry about the numbers on the device. Start at the lowest wattage and start moving up until you get a vape you like. Doesn't really matter what the numbers on the IPV say as long as you like the vape. If you can't get a vape you like without burning start over.

I wick my fogger with Rayon and it works well with no dry hits. Just not enough for me. Planning on getting a Lemo next.

Built it on a screwdriver that is just under an 1/8 of an inch. It's .116" to be exact. It's got a bigger deck than the kayfun, so I decided to build a bigger coil. Mainly for convenience.

 

[jacobgh]

It will go up to 150 watts, but only on a build where the resistance (ohms) is at .33 or lower. For example, I'm running a .47 ohm build right now, and at 7 volts I cap out at 107 watts per my iPV3 display. I'm not running it anywhere near that though. Google yourself an Ohm's Law calculator, you can use that before you build to see how much power you can push out of your desired resistance.

Ok, so I think I've got it now. Since I built it at 2.7, coupled with the 7 volt max output with the chip in my device, then the display was actually lying to me because it's not possible to go over about 18 watts with that build? So had I been at a true 40 watts, it would have tasted like charcoal I'm assuming.

 

[BeerGolfClouds]

Ok, so I think I've got it now. Since I built it at 2.7, coupled with the 7 volt max output with the chip in my device, then the display was actually lying to me because it's not possible to go over about 18 watts with that build? So had I been at a true 40 watts, it would have tasted like charcoal I'm assuming.

Bingo I agree with the previous poster as well, I think a smaller diameter coil would probably do you well. From my own experience, larger coils like the size you're using work better in RDAs than they do in a tank-style rebuildable. Give it a shot and see if it wicks a bit better, I personally like 5/64" but anywhere from 1/16" to 3/32" should work great.

 

[jacobgh]

Awesome, everyone! Thanks for the help!

 

[AlanC]

It will go up to 150 watts, but only on a build where the resistance (ohms) is at .33 or lower. For example, I'm running a .47 ohm build right now, and at 7 volts I cap out at 107 watts per my iPV3 display. I'm not running it anywhere near that though. Google yourself an Ohm's Law calculator, you can use that before you build to see how much power you can push out of your desired resistance.

I'm relatively new to sub ohming and what not, but im looking at getting a nice box mod, and im currently using a plume veil clone with a .116ohm, 10g kanthal build....how big of a box do I need to run that? Or do you know anywhere with good literature on this stuff?

 

[rolygate]

Have a look at the Steam Engine range of vaping calcs. You can probably find something there to help you.

Ohm's law | Steam Engine | free vaping calculators

Running a 0.1 ohm coil at 4 volts will draw 40 amps and use 160 watts of power. On a mechmod in practice those numbers will be less because the high load vs physical battery size means there is a significant voltage drop. A regulator boxmod may be able to hold the voltage down to say 3.5 otherwise the power draw is monster for an electronic unit.

On the other hand many people find that once they get a regulator, they build higher resistance coils, as they can get the vape they need without disappearing down the rabbit hole with the coil res.

 

[RandyF]

Try a 28g 6wrap contact coil with an ID of 2.4mm (3/32). The resistance should be 1.1'ish. Vape it about 25watts. You are not going to be able to throw a lot of power at the Lemo, the wicking in a tank system just isn't designed to keep up with high wattage vaping. Not that you were actually doing it before, just a general statement. Your wicking looked good though, so don't change that.

 

[Aeonz1113]

I fixed my Lemo dry hit problem by wicking with more cotton. After alot of testing i found out that when too much of the vacuum effect occurs and you dont have enough cotton, the wick lifts up a bit, not making contact with the juice channels. So basically, use more cotton to avoid movement and dont prime like crazy.

 

[Wolfenstark]

My current build is two strands twisted 29 gauge 2.5mm 1.4Ω vaping at 18-20 watts.
Though all my builds which mostly are 26 gauge 2.5mm varying Ω's have all been great.

Current build looks like this and no dry hits.

 

[pjjones]

I've been using it for 3 weeks now, for me the best build is 3mm diameter, 10 wraps of 26g kanthal, comes out to 1.4 ohms, if you get the wicking right, it'll be good from 11 to 30 watts (I would say more, but I only own a 30w mod, so that's what I'm sure of), I run it with 75vg juice.

 

[aerosox]

recently i got into vaping after quitting tobacco and was vaping 50/50 mix and when got into 60vg/40pg juices i kept getting dry hits and looks like the juice is flowing slow to the cotton wick.

3mm diameter, 9 wraps 26awg - 0.9ohm, 20w on lemo drop tank and smok xpro m65, cotton used japanese organic cotton pad

btw i had my coil close to the air hole aswell