Question on ohms and wattage

[wiscylinux]

As I start my journey into rebuildables I have a question.
I have watched several youtube vids showing you how build coils etc.... and the one thing I noticed in a lot of them is that they build coils that have say 1.5 ohm resitance but they are vaping them at really high wattages.
I saw Riptrippers video on rebuilding a protank he had like 1.4 or 1.5 coil build and was running it at 14 watts.
I rebuilt my protank with a 30g kanthal micro coil 8 wraps and got 1.8 ohms but I cant seem to go above 7.5 watts before it tastes like crap using 75pg 25vg blend. Dont get me wrong im not concerned about vaping low resistance at high wattage I would just like to understand how they are doing it.

 

[LX1X]

yeah makes me wonder myself.. i stay in the range of 6-8 watts (calculated).

either they like hot vape.. like smoking a real cig.. just guessing.

 

[cghildreth]

The key is providing sufficient juice and air to the coils. I routinely vape at 40+ watts (0.4 ohm coil at 4v = 40w). The only way that I can do this though without it tasting like utter crap is to make sure that the coils are not running dry and that there is plenty of air flow across the coil for cooling purposes. I do this primarily with RDAs. I wouldn't advise it on a protank.

15 watts should be doable on a protank. You'll need to be sure though that your wick is capable of supplying quite a bit of juice to the coils - cotton seems to be just about the best wicking material available. You may also want to "prime" the wick before hitting the power button. Keep in mind that part of supply juice to the coil is to make sure that the entire coil is contacting the wick - if you've got portions of the coil not contacting the wick, you may be tasting the resulting hotspots.

Alternatively, ditch the protank and get a kayfun. You'll find its much easier to rebuild and will give you a much better more flavorful vape than a protank.

YMMV.

 

[Stosh]

IF you build a low enough resistance coil, and IF you have sufficient wicking, and IF you drill out the air hole for sufficient air flow, and IF you saturate the wick to the point that would be considered flooded in any other case.....you can use high wattage, blow all your juice into clouds around the room, and "look cool"...

A good 2.0 - 2.5 ohm coil properly wicked with normal wattage will give you adjustment room to be able to adjust for the best taste, and a good quanity of vapor.....

 

[wiscylinux]

I have an aga t2 coming tommorow. I got my wire early so I decided to practice a build on my protank thats been sitting idle for a while. I used cotton wicking and it seems to be working great just cant watt it up to high. As I said no big deal Im just curious how he could run at 1.5 ohms and 14watts .

 

[Papa_Lazarou]

Yep - what they've said above. Don't try it on a PT, save it for RBA's with the appropriate setup and even then, only if you're going for extreme vaping.

If you do want to get into the RBA thing, the Kayfun suggested is a very good one. Others like what's referred to as the 'genesis' family - you should do research on both (and more) before preceding down that road.

 

[wiscylinux]

I just popped the protank that I rebuilt yesterday on my SVD for the first time. 1.8 ohms running 10 watts and its working great

 

[bender817]

The larger gauges of wire require more power to run, therefor handle power more gracefully. And compressed (touching) coils are hotter, but handle power better as well.

 

[Ben C.]

IF you build a low enough resistance coil, and IF you have sufficient wicking, and IF you drill out the air hole for sufficient air flow, and IF you saturate the wick to the point that would be considered flooded in any other case.....you can use high wattage, blow all your juice into clouds around the room, and "look cool"...

A good 2.0 - 2.5 ohm coil properly wicked with normal wattage will give you adjustment room to be able to adjust for the best taste, and a good quanity of vapor.....

I use microcoils (30g, 9-10 wraps), cotton and have used Patriots, IGOs, Kraken, Kayfuns, etc.
I prefer 2.3 ohms and 7-7.5 watts

 

[Stosh]

I use microcoils (30g, 9-10 wraps), cotton and have used Patriots, IGOs, Kraken, Kayfuns, etc.
I prefer 2.3 ohms and 7-7.5 watts

2.3 ohms is mid-point of where I aim for, but I'm not sure how many watts,
I just adjust for best taste.., likely about 7-7.5 watts but who knows...

 

[Ryedan]

I just popped the protank that I rebuilt yesterday on my SVD for the first time. 1.8 ohms running 10 watts and its working great

Sounds good to me . It's all about matching air flow, coil surface area, power (watts) and making sure your wick can keep up. You can get a burnt vape with low power if it's not wet up right and you can get a cool, tasty vape with high power if it's set up right. The devil as always is in the details .

Are you going to be using SS mesh in the AGA-T?

 

[G Izlude]

As I start my journey into rebuildables I have a question.
I have watched several youtube vids showing you how build coils etc.... and the one thing I noticed in a lot of them is that they build coils that have say 1.5 ohm resitance but they are vaping them at really high wattages.
I saw Riptrippers video on rebuilding a protank he had like 1.4 or 1.5 coil build and was running it at 14 watts.
I rebuilt my protank with a 30g kanthal micro coil 8 wraps and got 1.8 ohms but I cant seem to go above 7.5 watts before it tastes like crap using 75pg 25vg blend. Dont get me wrong im not concerned about vaping low resistance at high wattage I would just like to understand how they are doing it.

The formula for wattage is W=V²/R. If you have a target wattage in mind, simply sub that wattage for W, use your common voltage that you are accustomed too and leave R a variable; solve for R. this is the resistance you should shoot for. Who said we'd never use algebra?

 

[VapoJoe86]

As I start my journey into rebuildables I have a question.
I have watched several youtube vids showing you how build coils etc.... and the one thing I noticed in a lot of them is that they build coils that have say 1.5 ohm resitance but they are vaping them at really high wattages.
I saw Riptrippers video on rebuilding a protank he had like 1.4 or 1.5 coil build and was running it at 14 watts.
I rebuilt my protank with a 30g kanthal micro coil 8 wraps and got 1.8 ohms but I cant seem to go above 7.5 watts before it tastes like crap using 75pg 25vg blend. Dont get me wrong im not concerned about vaping low resistance at high wattage I would just like to understand how they are doing it.

I imagine rip is using cotton as the wick in these high power situations. If I'm using silica, I can only go to about 7-8 watts before it tastes disgusting. If I'm using cotton though... Well then I can easily push it to 15 watts and taste nothing but deliciousness. The key is in the wicking material my friend.

EDIT: I wanted to add that I use 30g kanthal and typically my coils are right around 1.5 ohms.

 

[dice57]

to be able to vape at high watts, two things are needed, proper air supply and adequate wicking. When one starts to get burnt tasting vape it is because enough juice isn't being supplied into the coils and you are getting dry hits. The wicking is either to thick and choking off the juice supply or not enough wick and can't supply enough juice.

Also if there is not enough air being supplied to the coil then it can't be cooled efficiently enough and produces heat build up that can cause a burning taste also.

It's a learning curve, and if one wants to vape at high watts, then acquiring good rba is where one should focus.

 

[VapoJoe86]

to be able to vape at high watts, two things are needed, proper air supply and adequate wicking. When one starts to get burnt tasting vape it is because enough juice isn't being supplied into the coils and you are getting dry hits. The wicking is either to thick and choking off the juice supply or not enough wick and can't supply enough juice.

Also if there is not enough air being supplied to the coil then it can't be cooled efficiently enough and produces heat build up that can cause a burning taste also.

It's a learning curve, and if one wants to vape at high watts, then acquiring good rba is where one should focus.

I think that wick material is just as important as the things you mentioned. Is vaping at high watts even possible with silica wick? I ask because I've never been able to get a silica build above 8 watts without a bad taste (regardless of the amount of silica used). I could imagine it being possible in a dripper, but not in any kind of tank system. It seems to me that cotton is the only way to go when it comes to high wattage vaping.

 

[bender817]

I think that wick material is just as important as the things you mentioned. Is vaping at high watts even possible with silica wick? I ask because I've never been able to get a silica build above 8 watts without a bad taste (regardless of the amount of silica used). I could imagine it being possible in a dripper, but not in any kind of tank system. It seems to me that cotton is the only way to go when it comes to high wattage vaping.

Never tried in a tank, and after I first switched to cotton I thought silica was terrible, but in time I found out that silica has to be properly broken in. I had a .39 ohm dripper with 9 inches of silica wound in there and it was fine (soaker style , like Mike from Vapehappy does). You have to torch it until its glowing white when it cools it is stiffer, then get everything installed and dry fire it a handful of times. I never got that silica taste and y'all know hot a .39 build is.

 

[dice57]

I gave up silica months ago when I went to micro coils and cotton. I now use Hemp Fiber in most all my builds, and only use cotton when trying a new rba or experimenting with the build. I don't like the potential health hazards of silica needles impaling my lung tissue when the wick starts to break down, but agree that silica can't wick as well as cotton or hemp. I did try a silica wick through a micro coil when I first bought my Russian rba, and it could not wick well enough for my liking. Both hemp and cotton are my choices for wick over anything including XC-116, which was just a waste of money IMHO.

 

[VapoJoe86]

I gave up silica months ago when I went to micro coils and cotton. I now use Hemp Fiber in most all my builds, and only use cotton when trying a new rba or experimenting with the build. I don't like the potential health hazards of silica needles impaling my lung tissue when the wick starts to break down, but agree that silica can't wick as well as cotton or hemp. I did try a silica wick through a micro coil when I first bought my Russian rba, and it could not wick well enough for my liking. Both hemp and cotton are my choices for wick over anything including XC-116, which was just a waste of money IMHO.

I'm with you on the whole silica fiber concerns- that's why I switched to cotton originally. I've yet to try hemp fiber. Would you say it performs as well or better than cotton? And can you recommend a good supplier?

 

[dice57]

Hemp Fiber wicks as well if not better than cotton, and lasts longer, which is the main plus. But it is much more intensive to clean and process before use. Check out the Just Hemp thread for more info.

I bought my hemp in a group buy, but here is a source for degummed Hemp Fiber that was posted on the hemp thread.

The properties of hemp are similar to cotton, but it does expand more than cotton and takes some adjustment to get used to. The flavor is a tad bit different too, almost a slightly nutty taste to it, also when you get a dry hit it is nowhere as nasty as a cotton dry hit. The degummed is what you probably want to try first, though it does come in twine and cloth forms too. The prep of the hemp is well worth the effort for what this wick supplies.