I recently switched out my old single coil setup for a dual coil made with titanium wire. Resistance went from 1.2Ω (single coil) to 1.4Ω (dual coil). Thought I’d share my early impressions and ask for some insight.
For the first ~100 puffs, the flavour was noticeably richer and smoother – I was actually really impressed. But not long after that, I started noticing a drop in vapour production. The flavour is still decent, but the clouds just aren’t hitting the same.
So now I’m wondering:
- Is this just how dual coils behave at this resistance?
- Could it be something to do with heat-up time or wicking?
- Or is 1.4Ω simply too high for a dual coil to really shine?
Would love to hear your thoughts or tips if you’ve used similar setups. I’m open to tweaking wattage, cotton, or even coil position if needed.
Cheers in advance!
1 Like
Your over thinking this. There’s not much difference between 1.4 and 1.2 Ohm’s. Coil material will effect taste but not at the proportion you are talking. It leaves us with 3 other factors. Cotton, wicking, wattage.
First thing I would check would be does the cotton move snug back and forth thru the coil? Is the cotton burnt inside the coil. Next I would check wicking. How tightly are tails packed in the wells? You didn’t mention if it’s a RDA or an RTA so the process of fixing the wicking would be slightly different. Remember you are packing twice as much cotton in the same space with a duo coil than a single coil. That leaves wattage. Start low and work your way up for taste. Hybread wire will run hotter than other metals.
If you got great taste through ( cotton prime)the first one hundred hits wicking would be my guess
4 Likes
are you using temperature control?
2 Likes
Dudes the very first question IMHO is how do you build a 1.2Ω Titanium coil. Followed by, adding a second coil, that should halve, certainly not increase.
3 Likes
Pretty much what I was thinking. Must have a shitload of wraps! Or…it’s a typo and he means 0.2 / 0.4 ohms?
3 Likes
@TorturedZen
i was considering he switched to titanium from another metal
that would explain the resistance
titanium in wattage mode is often warned against
and TC can definitly be finicky itself depending on the mod
I don’t know anything about dual coil really
2 Likes
Only he would know, but he did have 2 measurements, one for a single and one for a dual coil.
Both very true. I’ve been using Titanium 9+ years on and off, in both watts and TC. But then again my TC is really just watts as the coil never reaches the temp limit and stays at the watts set.
Let’s look at 2 0.6Ω coils. On the vast majority of builds RDA, RTA, RDTA when both are installed, the resistance halves so you end up with a 0.3Ω reading.
There are much fewer ‘series’ atty’s. I think SC has a series deck, and an RDA where you could add a 3rd coil. With a series deck you add resistances. So the 2 @ 0.6Ω coils installed shows 1.2Ω. With that 3 coil RDA it would be 1.8Ω.
1 Like
You sure about that resistance? Sounds very high for a TI dual coil setup. And you really shouldn’t run them in wattage mode.
1 Like
How was the first coil wrapped vs the titanium? Like are were they round wire or Clapton?
1 Like