Max flavor out of MTL RTA?

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Jimi D.

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Iirc, we switched to Kanthal because it was considered a safer (safest?) resistance wire. And because many NiChrome users were complaining about its metallic taste. ;) I’ve been vaping for over 10 years and I feel fine. So just spare me the bs.

I remember many heated discussions on the subject, and @MacTechVpr 's extensive writings on the subject.

Coil under electron microscope

And then there was this thread, after good doctor K. Farsalinos kicked the hornet's nest with his warning about dry burning/overheating our coils. :lol:

The end of microcoils?

Just my :2c:
 

Jimi D.

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When I 1st got into Building my own coils (on Genny's), everything I built tasted strange. I tried Bigger Coils, Smaller Coils, More Loops, Less Loops, Different Wire Gauges, Different Cotton, Different Atomizers. No Joy at all.

So I just Gave Up Building Coils for a Couple of Months and just Stayed with CE2's.

Then One Day it Hit Me. CE2's (Like all the Early Stuff) used NiChrome 80. And I was Using Kanthal A1 because that was the new "Hot Ticket" at the time.

So I got a Piece of NiChrome 80 at a B&M and the 1st Build I did with it Tasted Good. Very Good In Fact. A week later I gave ALL my Kanthal away. And haven't used any since.

Today, I use mostly SS in my RDA's. But all my RTA's are built with NiChrome 80.
I thought the exact same thing. I remembered that all my atomizers and cartomizers were all Nichrome back then. I really enjoy the Temco brand of Nichrome 80. Good stuff, Sir.
 

MichaellMcCoyy

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Mordacai

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They're honestly the best of both worlds, but like with any other atomiser it can take some trial and error to find the ones you really like.

If you haven't tried one before @MichaellMcCoyy, I think that you'd be impressed by the results you could get out of one on the first couple of builds.

How tight an airflow do you like for MTL though? As those Mulan MTL RDTA's have 0.8mm, 1.5mm & 2.0mm airflow inserts that are used to control the airflow.
 

MichaellMcCoyy

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I just watched a video about matching (or getting as close as possible) the bore of the chimney with the airflow hole below the coil for good flavor (and a couple more wicking videos).

I switched my Hellvape MD to the wide open slot on the smaller disk, thinned out my rayon by holding a piece tight with one hand and loosely “combing?” With the other to remove loose/excess strands. I installed the rayon tightly, trimmed the ends, fluffed it, and cut at a 45 degree angle from the end of the base to the top of the post. I was worried this wouldn’t be enough wick, but I dropped it in, and wet it up (I also raised my 2.5mm coil up ever so slightly). For some reason I grabbed a bottle of juice that I intended to throw away (because it didn’t taste good to me before).

To my surprise, it tastes exactly like it’s supposed to (banana cream). I’m really excited because I am getting such a better vape and I hope I can emulate this in the future. I’m not sure if I have just been using too much wick (I never really had a burned/dry tasting hit, it just didn’t taste right), or if the restricted airflow was causing the lack of flavor.
 

Katya

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To my surprise, it tastes exactly like it’s supposed to (banana cream). I’m really excited because I am getting such a better vape and I hope I can emulate this in the future. I’m not sure if I have just been using too much wick (I never really had a burned/dry tasting hit, it just didn’t taste right), or if the restricted airflow was causing the lack of flavor.

Congratulations! Glad you got it sorted. Vaping can be like this. You have to find your own sweet spot. It takes time, but is so worth it! Enjoy!
 

MichaellMcCoyy

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I have one last question. When I’m building my coils, do I want to keep them mostly over the airflow hole, or does it not matter?

The airflow on my Pioneer is a small circle as opposed to the MD which is a wider oval. On the MD the airflow hole encompasses a 7 wrap coil but on the Pioneer, it would hang outside the small circle.

I assume that the airflow encompassing the entire length of the coil would give the best flavor, but I wonder if because most of the heat is generated from the middle of the coil outwards, that maybe it doesn’t matter so much?
 

Superuser187

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I am not a pro vaper but I feel like the flavour comes from air to vapor ratio Soo less airflow would give u better flavour...plus it's about the chamber of the attomizer and the curves that may compress the vapor creating a Venturi effect like in car carburators :p (I am car mechanic lol) and blah blah blah
But anyways as I see it's all about what is best for you and I am happy u get better flavour cause I have seen you are flavour chaser
I believe the wicking is the most important thing and I knew that you and me also as we learn wick we will get vapes as we want them :) i feel it's a looooong learning curve
SOOOOOOOOOO
GRAAAAAAAATZZZZZ BROOOOOO ENJOYYYYYYYYYYYYYYYYYYYYY

:vapor::vapor::vapor::vapor::vapor::vapor::vapor::vapor::vapor::vapor:

:rickroll::rickroll::rickroll::rickroll::rickroll::rickroll:
 

Superuser187

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About the placement of the coil most suggest the coil to be as close to aifloe holes as possible without short but in my experience so far it's better if it's 2mm apart.....if u try visualise the airflow to the coil I guess makes sense cause very close will cause a turbulance...but that depends the aiflow opening and the size of could and how hard u draw puff I guess and anyways very close to airflow in my case is not good hahahah
I always visualise something like that hahaha
Smoke-visualisation-and-flow-topology-of-the-airflow-around-a-cylinder.png
 

Superuser187

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Do you guys find cotton gives a “spicy?” hit/flavor lol. I get a weird taste with cotton that I don’t get with rayon

Nope not really...maybe sometime it was similar to "spicy" feeling when the cotton was too much but wasn't causing dryhit bad taste.....but maybe a veeeeery light "burn" on cotton that caused me to have low flavour ofc also and that wierd feeling in mouth.....had to rewick hahahah
 

MichaellMcCoyy

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Nope not really...maybe sometime it was similar to "spicy" feeling when the cotton was too much but wasn't causing dryhit bad taste.....but maybe a veeeeery light "burn" on cotton that caused me to have low flavour ofc also and that wierd feeling in mouth.....had to rewick hahahah

Yeah I think it is caused by too much cotton.
 

MacTechVpr

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I just watched a video about matching (or getting as close as possible) the bore of the chimney with the airflow hole below the coil for good flavor…restricted airflow was causing the lack of flavor.

Good observe. Convection happens primarily from the top of the coil (heat rises). Logically it follows that intake must happen elsewhere, i.e. the opposite, or bottom of the coil. Why the Kennedy and other bottom-air atty's are such spectacular flavor machines. There your ob (centering the airflow, or coil relative to it) is vital.

Argued this some years ago during the top or bottom air-flow debates to a tepid response, lol, on Reddit. Then came anyway an array of top air-flow atty's with an expected lukewarm response by the public.

The more the top air-flow the greater the diffusion of the vapor stream after the fact. The greater that flow is from the bottom, the more potential for vapor production (given adequate juice to air). Too much air (running lean) always diffuses.

I've seen it said that 3-of-4 of the top rated atty's ever made are bottom air-flow. Makes sense to me.

Enjoy the vape.

Good luck. :)

p.s. For side a/f atty's I try to place coils 50% above the airstream (to dissuade over-cooling of the coils top surfaces. Too low (or lower than the coil) however and you reduce the the amount of air supply to the bottom required for optimal intake to support vaporization. To start a new atty though I try dead center of coil to air.

p.s.s. Learning how to slipstream draw (side sip some air, or partially block the bore) with a wide-bore drip tip can add lots of variation in flavor and vapor production. Can radically change how an atty performs. For ex, constraining intake at start of fire gives coil more mili sec's to heat to optimal, then bam…wide open DT and more air/velocity. Just sayin.
 
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