Russian 91% vs Russian

[jjkillian]

What is the difference between the 91% model and the regular model?

 

[asdaq]

9% of the length. I like those easy math problems.

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[Rob S.]

What is the difference between the 91% model and the regular model?

The Russian (kayfun 3.1 clone).

The Russian 91% (kayfun Lite clone).



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[cappadoc]

R91 is shorter, screw fill, has air control. KFL does not have air control.
Russian is longer, needle fill, has air control and a bottom collector.

 

[dice57]

$10. Can get the 91% for $10 less than I paid for the full Russian. A great rba no matter how you slice it. A high quality build.

 

[ph0kused]

R91 is shorter, screw fill, has air control. KFL does not have air control.
Russian is longer, needle fill, has air control and a bottom collector.

Nobody has been able to answer this question for me... maybe you guys can!

Does anybody know if the Russian or the Russian 91% (or even the KF models) have an adjustable airflow equal to 2 holes drilled out to 3/32 (2.4mm)

I direct lung hit... most of these devices are for mouth hitters, which 90% of the vaping community mouth hits im sure, except for here in the modding community, I think there's a lot of direct-lung hitters here..

My issue is with airflow... Most of these devices are far too restrictive for people who lung hit, and run dual coils around .6ohms

 

[jjkillian]

Nobody has been able to answer this question for me... maybe you guys can!

Does anybody know if the Russian or the Russian 91% (or even the KF models) have an adjustable airflow equal to 2 holes drilled out to 3/32 (2.4mm)

I direct lung hit... most of these devices are for mouth hitters, which 90% of the vaping community mouth hits im sure, except for here in the modding community, I think there's a lot of direct-lung hitters here..

My issue is with airflow... Most of these devices are far too restrictive for people who lung hit, and run dual coils around .6ohms

I lung hit. Just pull the air flow screw out of the 91%. I also found to build the "volcano" coil / "dragon" coil / "chimney" coil directly over the air hole in the chamber creates really good air flow. You can find the volcano and dragon coil build on here and the chimney one on Rip Trippers Youtube channel. Rip's is the easiest to figure out since it is in video format. Plus the way he wicks it is perfect. I was initially having issues with dry hits in the 91%. After he pointed out to make sure the wick is pressed against the "wall", it made a huge difference and I actually have more of a problem with over wicking than I do it not wicking enough.

I used an 18g needle to wrap 26g Kanthal around. I think a 16g needle would create a little more airflow as the 18g is just slightly smaller than the air hole in the chamber of the 91%.

Wicking it is the real trick. Too little and it burns. Too much and juice comes flying up in to your mouth. If you chain vape it that juice is pretty hot.

With the 26g at an 8 wrap I am getting .55ohms on the 18g needle. If you go to a 16g needle, dropping a wrap should keep you in the .5 to .6 range.

So far the Russian 91% with this build is the best taste I have obtained out of any device. Vapor production is pretty good also.

If you find a hint of burnt taste, let off immediately and just pull without providing power. It gets the wicking going. It takes a good 10-20 hits to really get it going right. After you put it down for a bit and especially when sitting overnight, pull on it a few times without power. Gravity pulls the liquid out of the wick as it sits. A fresh battery also challenges the wick at the .5 to .6 range. I love the vape at that level otherwise I would build it at .8 just to lower the risk of a dry hit.

At the end of the day, taste, almost no worry of leaking fluid and having a tank makes this design my favorite by far right now.

Here is Rip's video: https://www.youtube.com/watch?v=z7o7RFoTtw0&feature=c4-overview&list=UUgZd5ygXFoQry9KDGlddSBg

 

[sahsah]

Nobody has been able to answer this question for me... maybe you guys can!

Does anybody know if the Russian or the Russian 91% (or even the KF models) have an adjustable airflow equal to 2 holes drilled out to 3/32 (2.4mm)

I direct lung hit... most of these devices are for mouth hitters, which 90% of the vaping community mouth hits im sure, except for here in the modding community, I think there's a lot of direct-lung hitters here..

My issue is with airflow... Most of these devices are far too restrictive for people who lung hit, and run dual coils around .6ohms

You're asking if the airflow on any of these devices is equal to two 2.4 mm air holes, so since all of these rba's only have one air hole, you're asking if it goes up to 4.8 mm when wide open? Well, if I'm wrong, and you're just asking if it's equal to 2.4 mm, the answer will still be the same : no.
the kayfuns are 1.4 mm at their most open I believe and the Russians are 1.5 or 1.6 mm if memory serves me correctly